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Recent posts by Lloyd at , :

2019-05-11

2019-05-09

2019-05-07

2019-05-06

2019-05-06

Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 43mm: MemChu Wide View (Nikon Z7)

Get Nikon Z system at B&H Photo.

This series looks at performance from near to far of the Nikon NIKKOR Z 24-70mm f/2.8 S from f/2.8 through f/8. Across the frame performance and field curvature are assessed.

In fun88官网 Mirrorless:

Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 43mm: MemChu Wide View

Includes images up to full camera resolution from f/2.8 through f/8, plus crops.

Bravo! The performance here is solid all around, with no obvious weak points.

1296 | 2592 | 4320
f2.8 @ 0.4 sec, ISO 64; 2019-05-09 20:32:11
[distortion corrected, LACA corrected, Enhance Details]
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/2.8 S @ 43mm

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Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 24mm: MemChu Wide View (Nikon Z7)

Get Nikon Z system at B&H Photo.

This series looks at performance from near to far of the Nikon NIKKOR Z 24-70mm f/2.8 S from f/2.8 through f/8. Across the frame performance and field curvature are assessed.

In fun88官网 Mirrorless:

Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 24mm: MemChu Wide View

Includes images up to full camera resolution from f/2.8 through f/8, plus crops.

Bravo! The performance here is solid all around, with no obvious weak points.

1296 | 2592 | 4320
f4 @ 1/50 sec, ISO 64; 2019-05-09 18:46:56
[distortion corrected, LACA corrected, Enhance Details]
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/2.8 S @ 24mm

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Canon’s Sleeper Strategy: Produce the Best Mirorrless Lenses (by far), with High-Res Pro Body to Come?

Get Canon EOS R system at B&H Photo.

It is now clear having tested all Nikon NIKKOR Z lenses except the 14-30mm that Nikon is producing very good but “high consumer grade” lenses for the Z system. I expect the Nikon NIKKOR Z 14-30mm f/4 S to rely even more heavily on sharpness-damaging distortion correction, and that’s not the only sharpness-damaging optical shortcut. I am disappointed in Nikon serving up lenses that are excellent in many ways, but fall flat on the most important areas: resolving power and micro contrast.

Even Leica uses such tricks with very expensive lenses—a disagreeble trend in the era of high resolution digital.

Canon plans to succeed with discerning pros?

Canon is taking another tack, producing “L” lenses that are true pro grade that are second to none. Canon has stated that very high optical quality is the goal and that size and weight are not priorities. This is a very different approach from Nikon or Leica, with Sony doing some of both, but falling short of Canon’s commitment to excellence.

To wit: the Canon RF 50mm f/1.2L and Canon RF 28-70mm f/2L are extremely impressive performers, and I expect no less of the new Canon RF 85mm f/1.2L*.

Canon’s pro-grade lens strategy makes sense if there is a high megapixel Canon EOS R body coming this year. The top-flight L lenses should make a killer combination.

* The Canon RF 24-105mm f/4L IS is a dud, but every vendor needs a kit lens.

B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 115 min unless noted. Certain deals may last longer.
$2797 SAVE $600 = 17.0% Nikon Z 7 Mirrorless in Cameras: Mirrorless
$2798 SAVE $400 = 12.0% Sony a7R III Mirrorless in Cameras: Mirrorless
$3498 SAVE $1000 = 22.0% Sony a9 Mirrorless in Cameras: Mirrorless
$898 SAVE $100 = 10.0% $164 FREE ITEMS Sony DSC-RX100 VA in Cameras: Point and Shoot

Sharpness and Micro Contrast Losses from Mandatory Distortion Correction with the Nikon NIKKOR Z 24-70mm f/2.8 S

Get Nikon Z system at B&H Photo.

Distortion correction guarantees a loss of sharpness and micro contrast, because some of the pixels in the frame must be stretched apart. With the NikonZ 24-70/2.8, the 45 megapixel sensor of the Nikon Z7 captures as litte as 40 megapixels of detail in the most affected areas, and the losses span nearly all the zoom range, varying by degree. False claims on optical design are found in Nikon’s lens brochure “NIKKOR-Z-Brochure.pdf”:

The ultimate in optical image quality... Less Distortion

Even at their widest apertures, NIKKOR Z lenses show virtually no distortion—flare, ghosting, coma, chromatic, axial and spherical aberration are all greatly minimized.

I call on Nikon to correct the false claim in the PDF. As an additional complaint, shooting aperture is irrelevant to distortion, and conflating distortion and lateral chromatic aberration with other optical aberrations is just poor writing.

Assessing distortion with the Nikon NIKKOR Z 24-70mm f/2.8 S

These pages shows the true optical distortion of the Nikon NIKKOR Z 24-70mm f/2.8 S at 70mm, 50mm, 35mm, 28mm, 24mm. The sharpness and micro contrast losses when distortion correction is used are shown, with and without distortion correction*.

In fun88官网 Mirrorless:

Overview of Distortion for Nikon NIKKOR Z 24-70mm f/2.8 S

Nikon NIKKOR Z 24-70mm f/2.8 S Distortion @ 24mm, 28mm for Nikon NIKKOR Z 24-70mm f/2.8 S

Nikon NIKKOR Z 24-70mm f/2.8 S Distortion @ 70mm, 50mm, 35mm for Nikon NIKKOR Z 24-70mm f/2.8 S

Includes images up to full camera resolution with various crops and comparisons.

* Since Adobe Camera Raw enforces lens correction flags such as for distortion correction, paired images were created from the raw files using Iridient Developer.

It is now clear having tested all Nikon NIKKOR Z lenses except the 14-30mm that Nikon is producing very good but “high consumer grade” lenses for the Z system. I expect the 14-30mm to rely even more heavily on sharpness-damaging distortion correction. Even Leica uses such tricks with very expensive lenses—a disagreeble trend in the era of high resolution digital.

f5.6 @ 1/5 sec, ISO 64; 2019-05-09 19:55:06 [LACA corrected, distortion corrected]
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/2.8 S @ 24mm
f8 @ 0.3 sec, ISO 64; 2019-05-09 19:45:14
[distortion corrected, LACA corrected, diffraction mitigating sharpening]
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/2.8 S @ 70mm

Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 64mm: View Through Arches to Church Mosaic (Nikon Z7)

Get Nikon Z system at B&H Photo.

This series from f/2.8 through f/8 looks at general performance of the Nikon NIKKOR Z 24-70mm f/2.8 S at 64mm at night. Includes a 3-frame focus stack at f/8 using Zerene Stacker.

In fun88官网 Mirrorless:

Nikon NIKKOR Z 24-70mm f/4 S Aperture Series: View Through Arches to Church Mosaic

Includes images up to full camera resolution from f/2.8 through f/8.

1296 | 2592 | 4320
f8 @ 6.0 sec, ISO 64; 2019-05-09 20:33:52
[distortion corrected, LACA corrected, focus stack 3 frames]
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/2.8 S @ 64mm

Deals Updated Daily at B&H Photo

Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 48mm: Burghers of Calais (Nikon Z7)

Get Nikon Z system at B&H Photo.

This series from f/2.8 through f/8 looks at the sharpness, contrast and secondary color of the Nikon NIKKOR Z 24-70mm f/2.8 S under artificial night lighting. Includes a a 2-frame focus stack at f/8.

In fun88官网 Mirrorless:

Nikon NIKKOR Z 24-70mm f/4 S Aperture Series: Burghers of Calais

Includes images up to full camera resolution from f/2.8 through f/8.

1296 | 2592 | 4320
f8 @ 30.0 sec, ISO 64; 2019-05-09 20:28:23
[focus stack 2 frames, distortion corrected, LACA corrected]
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/2.8 S @ 48mm

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Sony 135mm f/1.8 GM Examples: Night Shooting (Sony A7R III)

Get Zeiss Otus at B&H Photo.

These examples taken at night evaluate sharpness, contrast, and control of color aberrations at f/1.8.

In fun88官网 Mirrorless:

Sony 135mm f/1.8 GM Examples: Night Shooting

Includes images up to full camera resolution, plus crops.

1296 | 2592 | 4320
f1.8 @ 4.0 sec, ISO 50; 2019-05-09 20:49:15 [Enhance Details, LACA corrected]
Sony A7R III + Sony FE 135mm F1.8 GM

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Sony 135mm f/1.8 GM Aperture Series: One Burgher, Night Lighting (Sony A7R III)

Get Zeiss Otus at B&H Photo.

This series looks at the sharpness of the Sony FE 135mm f/1.8 GM at night on a medium-far target with very fine details from f/1.8 through f/5.6.

In fun88官网 Mirrorless:

Sony 135mm f/1.8 GM Aperture Series: One Burgher, Night Lighting

Includes images up to full camera resolution, plus crops.

f1.8 @ 5.0 sec IS=off, ISO 100; 2019-05-09 20:34:18
[LACA corrected, Enhance Details]
Sony A7R III + Sony FE 135mm F1.8 GM

MacPerformanceGuide.com

Sony 135mm f/1.8 GM Aperture Series: Church at Night (Sony A7R III)

Get Zeiss Otus at B&H Photo.

This series looks at the sharpness of the Sony FE 135mm f/1.8 GM at night on a medium-far target with very fine details from f/1.8 through f/5.6.

In fun88官网 Mirrorless:

Sony 135mm f/1.8 GM Aperture Series: Church at Night

Includes images up to full camera resolution, plus crops.

1296 | 2592 | 4320
f1.8 @ 1.3 sec, ISO 50; 2019-05-09 20:43:26 [Enhance Details]
Sony A7R III + Sony FE 135mm F1.8 GM

Deals Updated Daily at B&H Photo

Zeiss Otus 100mm f/1.4 APO-Sonnar Aperture Series: Tower at Night (Nikon D850)

Get Zeiss Otus at B&H Photo.

This series looks at the sharpness of the Zeiss Otus 100mm f/1.4 APO-Sonnar at night on a distant target with very fine details from f/1.4 through f/4.

In fun88官网 Zeiss DSLR Lenses:

Zeiss Otus 100mm f/1.4 APO-Sonnar Aperture Series: Tower at Night

Includes images up to full camera resolution, plus crops.

1296 | 2592 | 4320
f1.4 @ 1.3 sec, ISO 64; 2019-05-05 19:21:16 [Enhance Details]
NIKON D850 + Zeiss Otus 100mm f/1.4 APO-Sonnar

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Zeiss Otus 100mm f/1.4 APO-Sonnar Aperture Series: 'The Claw' Fountain (Nikon D850)

Get Zeiss Otus at B&H Photo.

This series looks at the sharpness and bokeh and secondary color of the Zeiss Otus 100mm f/1.4 APO-Sonnar on a scene at medium distance from f/1.4 through f/8.

In fun88官网 Zeiss DSLR Lenses:

Zeiss Otus 100mm f/1.4 APO-Sonnar Aperture Series: 'The Claw' Fountain

Includes images up to full camera resolution, plus crops.

1296 | 2592 | 4320
f2.8 @ 2.5 sec, ISO 64; 2019-05-05 19:14:13 [Enhance Details]
NIKON D850 + Zeiss Otus 100mm f/1.4 APO-Sonnar
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Zeiss Otus 100mm f/1.4 APO-Sonnar Examples: Campus Dusk and Night (Nikon D850)

Get Zeiss Otus at B&H Photo.

This page shows a variety of ad-hoc examples shot for initial evaluation very late on a flat gloomy lighting day. On such days, lens contrast is an imperative to deliver images that have some snap in spit of the lighting.

Examples were chosen to demonstrate sharpness, bokeh, vignetting, and secondary color at f/1.4. Many examples have dual apertures to compare. Together, I think these give a really solid idea of how the Zeiss Otus 100mm f/1.4 APO-Sonnar behaves.

In fun88官网 Zeiss DLSR Lenses:

Zeiss Otus 100mm f/1.4 APO-Sonnar Examples: Campus Dusk and Night (Nikon D850)

Includes images up to full camera resolution.

As to Otii, I think the about $4990 Zeiss Otus 100mm f/1.4 APO-Sonnar is my favorite Otus yet.

1296 | 2592 | 4320
f1.4 @ 1.3 sec, ISO 64; 2019-05-05 19:33:59 [Enhance Details]
NIKON D850 + Zeiss Otus 100mm f/1.4 APO-Sonnar

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Selling the 2017 iMac 5K and Buying the 2019 iMac 5K — Compelling Performance Gains for My Work, Plus 128GB Memory

2019 iMac 5K

As shown in my review of the 2019 iMac 5K, performance of the 2019 iMac 5K is so compelling for my uses that I have sold my 2017 iMac 5K and some other gear to fund the purchase (my budget otherwise is bare bones at best).

The 128GB memory will solve a for me.

This is the ideal machine along with :

Apple iMac 5K 3.6 GHz / 8GB / 2TB / Vega 48

  • 3.6 GHz Intel Core i9 Eight-Core
  • 8GB of DDR4 RAM (add )
  • 2TB PCIe SSD
  • AMD Radeon Pro Vega 48 GPU (8GB)

See my and/or to decide on not just the best Mac, but storage and backup and more.

 

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Calling Out Two Great Deals at B&H Photo

The Sigma 40mm f/1.4 DG HSM Art is a terrific performer, and it’s at B&H Deal Zone at $400 off for Nikon or Canon or Sigma SA mount—wow! I’d buy it in a heartbet if my budget wasn’s so tight. It is one of the finest lenses available today—see my review of the Sigma 40mm f/1.4 DG HSM Art. I’m stunned that such a fine lens is being so deeply discounted.

As to the printer, I been using a non-duplex version of the Xerox WorkCentre 6515. I love the print quality—so much better than inket—so at this price I bought the duplex version.

See the other Deal Zone deals also, updated daily.

 

B&H Photo Introduces Payboo Card, Refunds the Sales Tax for Many States — Game Changer for Retailers?

As a small business, I remit sales/use tax every year on out of state purchases. If I were to buy a camera or computer locally or at Amazon, I remit that immediately—money gone.

Now, if I instead buy it from B&H, the sale tax amount is deducted from the purchase price—an unbeatable value given B&H competitive prices. Plus most of my use tax bill (same amount as sales tax) will go away, the tax already being paid.

B&H Photo loaner gear is crucial to my reviews here—please buy through links on this site, and check out wishlists, top deals and my deal finder page.

B&H changes the online sales model

B&H Photo makes a industry-changing move that builds brand loyalty with its new Payboo credit card, and at least here in California, is equivalent to a 9%+ discount:

Now, with the B&H Payboo Card, save the equivalent to the sales tax you pay on every purchase shipped to eligible states”.

I’d be surprised if this move does not cause other companies to follow. Kudos to B&H for innovating, and I hope they have the margins to make this work and stay financially healthy.

Apply Now for Payboo

B&H Photo Payboo “Save the tax” credit card

The arrangement is a not “points” or saving later, it is instant savings. B&H deserves praise both for this groundbreaking move as well as making it gimmick-free:

What are the B&H Payboo Credit Card benefits?

B&H issues instant Payboo Card Savings on all non-tax-exempt purchases shipped to eligible states paid for with the Payboo Card in the form of a reward concurrently issued and redeemed directly on your order during checkout.

How does the Payboo Card benefit really work?

When you pay for B&H purchases with the Payboo Credit Card, B&H will charge the total of merchandise plus applicable fees and taxes; but we instantly issue and apply a reward on orders made in our SuperStore or shipped to eligible states right in checkout as a form of customer payment. Then, the amount charged to the Payboo Card is net of the benefit applied. \

Am I paying sales tax on my purchase? Do I need to submit anything in my tax filings?

B&H will collect and remit state sales tax in accordance with state sales tax laws and regulations. So, customers do pay required sales tax and do not need to keep track or file anything separately. Is there any limit or cap on the total amount of Payboo Card savings? No. B&H will issue Payboo Card Savings rewards without any upper limit.

...

B&H Photo sells a wide variety of cameras, lenses, electronics and more, and is an Apple authorized reseller. See my B&H Photo wishlists.

Super easy to apply and use

I applied for and received my Payboo card and had made an order in under 5 minutes.

B&H Photo Payboo card used for order, saves sales tax

B&H letter

Nobody likes to pay sales tax, but everyone must pay sales tax! B&H, and only B&H, has the solution to the sales tax issue.

Tomorrow, May 7th, B&H will be making a game-changing announcement, and as a loyal customer, I’d like you to be privy to some inside information in advance that will change your shopping experience forever.

Nearly one year ago, the Supreme Court ruled that out-of-state retailers must collect sales tax on internet sales. This, of course, included B&H. For 46 years we have been committed to providing unparalleled customer service, and so we began the tedious process of implementing a way to eliminate the impact this ruling would have on our customers.

We are now ready to launch “Payboo”, the solution to the sales-tax challenge. Tune in tomorrow for details on how to become a part of “Payboo”!

I know you have many shopping choices for creative gear and consumer electronics, but with “Payboo”, there will only be one best choice: B&H!

I look forward to a continued great business relationship and remember, at B&H, the customer always comes first. That’s why we’ve created “Payboo” to solve the sales tax impact for you.

Sincerely,

Menashe Horowitz CEO

fun88官网: should be interesting to see how it goes. I wish B&H the best, but I wonder how other vendors will response.

Sergey Z writes:

While it is, admittedly, very exciting to expect to avoid paying the Socialist California 9% tax on stuff we buy often and for a lot of money, I think this is a very short-sighted improvement. Akin to the idea of taking Warren Buffet's money and re-distributing it evenly to everyone. In both cases, you get a short-term monetary gain, but the price is the long-term ruin:

1) If B&H is the only one that adopts this system (which I sure hope is what will happen), it will either go out of business, or simply have to raise their prices to compensate for the delta. The market they are in is pretty efficient, and there are no miracles...

2) Every other internet retailer caves in and adapts this strategy. That will be a major step towards Socialism then -- hidden confiscation, that the government can feel free to ratchet up at will, since consumers will never notice. I mean, consider the difference between:
a) The sales tax doubling overnight today (likely riots)

b) The sales tax doubling overnight when companies comp for it (probably half the country would not even understand this is same as (a), and think: "It's OK, rich B&H will just comp me anyway". Well, admittedly, it's likely the IQ of average B&H customer is higher than populace average, so specifically in case of B&H customers it may not fly, but I think you catch my drift.

fun88官网: when you push on one end of a balloon, the other end bulges—something has to 'give'. If B&H is cutting margins, then it is a bold move. Every year in CA there is another proposal to bump up sales tax for pet projects, but unless the tax diverges for in vs out of state, there is still (so far) enough resistance that we seem to be hovering at 9% sale tax.

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White Balance and Tint for Zeiss Otus 100mm f/1.4 APO-Sonnar in Adobe Camera Raw — Differs for f/1.4

Get Zeiss Otus at B&H Photo.

With modern digital cameras, a substantial tint difference is often seen at f/1.4 with many lenses; see for example how the Sigma 105mm f/1.4 DG HSM Art behaves. This behavior can vary by sensor/camera but the Nikon D850 is prone to it, and presumably the Nikon Z7 also.

Like the Sigma 105mm f/1.4 DG HSM Art, the Zeiss Otus 100mm f/1.4 APO-Sonnar also shows a significant tint difference at f/1.4 versus other apertures. It is readily visible in any aperture series if not compensated for.

This page uses a SpyderCHECKER ® color checker card to evaluate the difference in white balance and tint between f/1.4 and other apertures, using Photoshop Adobe Camera Raw. In fun88官网 Zeiss DSLR Lenses:

In fun88官网 Zeiss DLSR Lenses:

White Balance and Tint at f/1.4 Versus Stopped Down, Datacolor SpyderCHECKR (Nikon D850)

The discerning photographer will want to adjust the color (tint) for f/1.4 versus other apertures by the amount detailed in this report. Exact figures are given for white balance and tint.

Neutral color for f/1.4
f1.4 @ 1/1250 sec, ISO 31; 2019-05-06 12:16:02
NIKON D850 + Zeiss Otus 100mm f/1.4 APO-Sonnar

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Zeiss Otus 100mm f/1.4 APO-Sonnar Aperture Series: Mosaic (Nikon D850)

Get Zeiss Otus at B&H Photo.

This aperture series from f/1.4 through f/8 with the Zeiss Otus 100mm f/1.4 APO-Sonnar looks at sharpness across the field as the sum total of optical performance, field curvature, focus shift and lens symmetry.

This planar target is highly demanding for any lens, intolerant of focus shift and field curvature, mercilessly revealing any lens weakness. Few lenses can deliver full sharpness on this scene wide open or even with stopping down, even very expensive ones.

In fun88官网 Zeiss DSLR Lenses:

Zeiss Otus 100mm f/1.4 APO-Sonnar Aperture Series: Mosaic (Nikon D850)

Includes images up to full camera resolution, plus crops.

This might be the finest performance on this subject that I have ever seen.

1296 | 2592 | 5112
f2 @ 1/30 sec, ISO 64; 2019-05-05 18:37:11 [Enhance Details]
NIKON D850 + Zeiss Otus 100mm f/1.4 APO-Sonnar

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Leica 50mm f/1.4 Summilux-SL ASPH Examples with Panasonic S1R Eye AF: Portraits

See my L-mount mirrorless wishlist and Leica M wishlist.

Results with animal Eye AF were excellent—see Boots the Cat with Eye AF.

In part, this page looks at the effectiveness of Eye AF on the Panasonic S1R for human eyes—not quite good enough, which is a pity given the gorgeous lens performance.

In spite of the failure of Eye AF to nail focus on the iris of the eyes, these examples nonetheless show off the spectacular rendering of the Leica 50mm f/1.4 Summilux-SL ASPH for portrait applications.

In fun88官网 L-Mount Mirrorless:

Leica 50mm f/1.4 Summilux-SL ASPH Examples: Portraits using Eye AF (Panasonic S1R, Eye AF)

Includes images up to full sensor resolution.

1296 | 2592 | 4320
f1.4 @ 1/200 sec, ISO 200; 2019-04-29 19:41:29
[distortion corrected, LACA corrected, Enhance Details]
Panasonic S1R + Leica 50mm f/1.4 Summilux-SL ASPH
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Leica 50mm f/1.4 Summilux-SL ASPH Examples with Panasonic S1R Eye AF: Boots the Cat

See my L-mount mirrorless wishlist and Leica M wishlist.

I had some trouble with the Panasonic S1R Eye AF with human eyes. I wondered how animal Eye AF would do with Boots the Cat.

These examples also show off the bokeh, sharpness, contrast and color of the Leica 50mm f/1.4 Summilux-SL ASPH—really beautiful, and this kind of rendering surely will endear the 50/1.4 to its owners for portrait-style shooting.

In fun88官网 L-Mount Mirrorless:

Leica 50mm f/1.4 Summilux-SL ASPH Examples: Boots the Cat (Panasonic S1R, Eye AF)

Includes images up to full sensor resolution.

1296 | 2592 | 4320
f1.4 @ 1/200 sec, ISO 200; 2019-04-29 19:45:24
Panasonic S1R + Leica 50mm f/1.4 Summilux-SL ASPH

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Leica 50mm f/1.4 Summilux-SL ASPH Examples: Lee Vining Canyon (Panasonic S1R)

See my L-mount mirrorless wishlist and Leica M wishlist.

This page looks at performance under outdoor conditions with various examples in Lee Vining Canyon.

In fun88官网 L-Mount Mirrorless:

Leica 50mm f/1.4 Summilux-SL ASPH Examples: Examples: Lee Vining Canyon (Panasonic S1R, Eye AF)

Includes select ultra high resolution images derived from 187 megapixel Multi-Shot High-Res mode.

1296 | 2592 | 4320
f9 @ 1.0 sec Multi-Shot HighRes, ISO 50; 2019-04-23 19:36:52
Panasonic S1R + Leica 50mm f/1.4 Summilux-SL ASPH

MacPerformanceGuide.com

Leica 50mm f/1.4 Summilux-SL ASPH: Impact of Field Curvature, Grassy Meadow (Panasonic S1R)

See my L-mount mirrorless wishlist and Leica M wishlist.

I had so many disappointments with the Leica 50mm f/1.4 Summilux-SL ASPH in the field; nearly every comparison I made to the the Panasonic 50mm f/1.4 could not really be used. The lens can make really lovely portraits and certain other images. Bought on that basis, it is sure to please.

I previously showed how to exploit the field curvature and focus shift behavior of the Leica 50/1.4 SL in Curved Creek, Using Field Curvature to Advantage.

This aperture series from f/1.4 through f/5.6 looks at the pronounced field curvature of the Leica 50mm f/1.4 Summilux-SL ASPH, showing why the lens is a exceedingly poor choice for landscape work at a distance, or for any planar subject. In fun88官网 L-Mount Mirrorless:

Leica 50mm f/1.4 Summilux-SL ASPH: Impact of Field Curvature, Grassy Meadow (Panasonic S1R)

Includes images up to full sensor resolution, plus crops.

A lens that cannot render sharpness across the frame even at f/5.6 means that it has no versatility, as it cannot be relied upon to perform for any image where sharpness must cover the frame, or for any planar subject, or for astrophotography. The Leica 50mm f/1.4 Summilux-SL ASPH is such a lens, clearly designed for purposes at odd with general purpose photography. Leica calls it a “reference lens”, which is a remarkably warped claim.

Below, a very utilitarian scene in yuck lighting, but excellent at showing lens behavior.

1296 | 2592 | 4320
f2 @ 1/250 sec, ISO 50; 2019-04-27 18:12:58
[location “Lee Vining Creek”, altitude 7400 ft / 2256 m, 58°F / 14°C, distortion corrected, LACA corrected, Enhance Details]
Panasonic S1R + Leica 50mm f/1.4 Summilux-SL ASPH

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Reader Comment: Zeiss Milvus 35mm f/1.4 and “Not found anywhere else is the level of relevant information you provide”

Reader Claude D writes:

I am a new Zeiss subscriber. Just wanted to thank you very much for your very unique work. Nobody analyses lenses as you do, with all the relevant studies and the right perspective required by people looking for beautiful quality images. I particularly appreciate the care you take to analyze focus shift and field curvature. I encourage you to even increase the amount of information you provide for that issue, as it appears to me as being of a paramount importance. As a matter of fact, the warning you gave about the Sigma 40mm was very useful. Also, it would be very interesting to get more detailed analysis about "color rendering" of lenses, specially when comparing Zeiss vs Sigma.

After carefully studying your articles on Zeiss Milvus 35mm f/1.4, I finally decided to buy it. Not found anywhere the level of relevant information you provide.

For the Milvus 35mm 1.4, do you intend eventually to do testing on mirrorless like Nikon Z7 ? I currently use a Nikon D850 (totally satisfied), but eventually I may buy the next generation of Nikon mirrorless (Z8 ?). I wonder what will be the impact on the image quality provided by a "DSLR" lens like the Milvus 35mm 1.4.

Thank you again !

fun88官网: focus shift and field curvature are critical considerations for high-resolution digital since they in essence throw off expected focus—and high-res digital is intolerant of small deviations, even with stopping down, even at f/5.6 and sometimes f/8. With cameras like the Panasonic S1R in 187-megapixel Multi-Shot High-Res mode, there is no margin for error. That is why some lenses, beautiful as they are for portraiture, are shockingly poor for general photography, such as the uber-expensive Leica 50mm f/1.4 Summilux-SL ASPH as shown in Grassy Meadow.

Moreover, the placement of the zone of sharpest focus can influence the visual impact negatively, drawing attention away from the intended target—focus shift and field curvature are very damaging in that regard—too sharp a background or a portrait with blurred nose and sharp ears is never a win if the goal is to set apart the subject.

As to shooting on the Nikon Z7, I intend to show more results on various mirrorless, not just the Z7. All such evaluations go into fun88官网 Zeiss DSLR Lenses, such as Aspen on Sagebrush Hillside Across Creek for the Milvus 35/1.4. In the web browser each the table of contents page for "Z7" for other lenses I’ve done so far with the Z7. The main issue for me is the huge cost of owning all the new mirrorless—I cannot—so I have an availability/time challenge.

Zeiss Milvus 35mm f/1.4

Upgrade the memory of your 2019 iMac up to 128GB

Leica 50mm f/1.4 Summilux-SL ASPH Aperture Series: Curved Creek, Using Field Curvature to Advantage (Panasonic S1R)

See my L-mount mirrorless wishlist and Leica M wishlist.

The field curvature and focus shift behaviorsof the Leica 50/1.4 SL are serious handicaps for landscape photography.

However, this aperture series from f/1.4 through f/9 looks at how the pronounced field curvature of the Leica 50mm f/1.4 Summilux-SL ASPH can be used to advantage with an appropriately shaped subject. In fun88官网 L-Mount Mirrorless:

Leica 50mm f/1.4 Summilux-SL ASPH Aperture Series: Curved Creek, Using Field Curvature to Advantage (Panasonic S1R)

Includes images up to 125 megapixels, plus crops.

1296 | 2592 | 4320
f6.3 @ 1/5 sec Multi-Shot HighRes, ISO 50; 2019-04-24 18:37:38
Panasonic S1R + Leica 50mm f/1.4 Summilux-SL ASPH
OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3

Upgraded my 2015 MacBook Pro Retina Apple Flash Drive to the 2TB OWC Aura Pro X2 SSD

Many of us have older Mac laptops that work great and still have handy USB-A ports with no dongle adapters needed, plus a built in SDXC port.

My is working fine but I wanted more space. And with more speed and lower power consumption too, that’s a triple win!

Read about my 2TB SSD upgrade to my 2015 MacBook Pro:

 

Volumes Boot and Master on 2TB OWC Aura Pro X2 SS,
installed internally in the 2015 MacBook Pro Retina,
2TB OWC Aura Pro X2 SSD installed internally in the 2015 MacBook Pro Retina

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In-Depth Review of 2019 iMac 5K Specifically for Photographers

Unsure which Mac to get or how to configure it? .

These tests made possible by loaner gear from B&H Photo and OWC, so please buy your gear at B&H Photo and using any link from this site or MacPerformanceGuide.com, ditto for OWC/MacSales.com.

See also .

2019 iMac 5K

2019 iMac 5K tests so far

Tests so far give a really solid picture of what to expect as a photographer from the 2019 iMac 5K, and I’ll have a conclusions section soon.

Check the over the next week or so, more stuff coming.

* For example, I have not tested with PhaseOne CaptureONE Pro. Please bug PhaseOne about it and have them contact me—every new version voids my license, and I don’t want to spend my time explaining/asking again and again—and I’d rather have them hear it from a customer.

2019 iMac 5K: Convert 100 Sony 7R III 42-megapixel raw flies to JPEG

Zeiss Otus 100mm f/1.4 APO-Sonnar with Novoflex lens adapter mounted on Panasonic S1R

Get Zeiss Otus at B&H Photo.

The Zeiss Otus 100mm f/1.4 APO-Sonnar can be mounted on Panasonic S1R using the Novoflex Leica M Lens to Leica SL/T Camera Body Lens Adapter.

Its awkward best but I’ll be looking at what I can get out of it at 187 megapixels, having had excellent results with the Zeiss Milvus 135mm f/2.

Zeiss Otus 100mm f/1.4 APO-Sonnar with Novoflex lens adapter mounted on Panasonic S1R

MacPerformanceGuide.com

Zeiss Otus 100mm f/1.4 APO-Sonnar Examples: Flowers, Plants, Ad-Hoc (Nikon D850)

Get Zeiss Otus at B&H Photo.

This page shows a variety of ad-hoc examples shot for initial evaluation. They are chosen mostly to show off bokeh and sharpness at wide apertures, looking for faults—very hard to find.

In fun88官网 Zeiss DSLR Lenses:

Zeiss Otus 100mm f/1.4 APO-Sonnar: Flowers, Plants, Ad-Hoc

Includes images up to full camera resolution.

1296 | 2592 | 4320
f1.4 @ 1/500 sec, ISO 100; 2019-04-29 18:04:00 [Enhance Details]
NIKON D850 + Zeiss Otus 100mm f/1.4 APO-Sonnar

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