Sigma 24mm f/1.4 A-mount ART lens available for preorder at BHphoto.

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Some good news for A-mount folks! The new Sigma 24mm f/1.4 ART A-mount lens is now on preorder at BHphoto (Click here).

DxOmark tested the new Sigma lens (Canon mount version) and writes:

Although at first sight the Sigma’s overall DxOMark score might not look as convincing as the two previous Art models from the maker, it is important to look deeper than the numbers suggest, especially at shorter focal lengths. The Sigma 24mm f1.4 DG HSM is the finest 24mm we’ve seen, although against the Canon 24mm f1.4L II USM, it’s a close-run thing. That model has slightly higher peak sharpness centrally at f4-5.6, but the Sigma has more uniform performance overall, including superior control of CA and distortion. It’s a worthy addition to the range and will only add to the maker’s reputation. Plus at around half the price of the Canon L-series equivalent, it’s a steal.

Reminder: Also those four new E and A-mount lenses can be preordered:
Zeiss Batis 85mm f/1.8 lens at Adorama (Click here), Bhphoto (Click here).
Zeiss Batis 25mm f/2.0 lens at Adorama (Click here), Bhphoto (Click here).
Sony 24-70mm f/2.8 ZA SSM II at BHphoto (Click here) and at Adorama (Click here).
Sony 16-35mm f/2.8 ZA SSM II at BHphoto (Click here) and at Adorama (Click here).

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from sonyalpharumors

2015年05月03日のつぶやきまとめを更新しました！

from レンズ沼探検隊 ペンタックス沼担当のつぶやきまとめ@Seesaaブログ

2015年05月02日のつぶやきまとめを更新しました！

from レンズ沼探検隊 ペンタックス沼担当のつぶやきまとめ@Seesaaブログ

Sony Tidbits…

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Focus Tracking Differences between Sony’s E-Mount and A-Mount Cameras by Gary Friedmann

Gary (video on top): “As I mention in my blog (friedmanarchives.com where this video first appeared), there are a lot of people for whom this situation may never come up. My purpose with the video is to let people better understand how the cameras evolved, and to touch on the strengths and weaknesses of each platform. It’s always useful to know under which circumstances your equipment will hit its limits, even if you never push it that far.”

Zeiss Loxia 35mm lens random thoughts by Sony Artisan Michael Wayne Plant.
State of the Camera Market (Diglloyd).
Sony Alpha A7 Family – Which One To Choose? (Verybiglobo).
Sony FE 24-240 tested at Dutch Pixelmania.
New kind of QX lens mount patent (Egami).
My review of the B-Grip Camera Holster for CSC’s and DSLM with my A6000 and A7R (Richardfoxphotography).
The Mighty Fifties – Zeiss 55mm f/1.8 vs Loxia 50mm f/2 vs Sigma 50mm f/1.4 (Ilovehatephoto).

Bernhard: “I started a little blog about my recent switch from my Canon 5DMKiii to a Sony A7s: http://ift.tt/1DQBy5t. It’s written a little “personal”, to tech charts – only real life experiences. And it’s german only, so it may not be interesting for you.  As you sometimes post blogs of readers I thought you may like it.“

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from sonyalpharumors

2015年05月01日のつぶやきまとめを更新しました！

from レンズ沼探検隊 ペンタックス沼担当のつぶやきまとめ@Seesaaブログ

Did you know that ZEISS products are orbiting a comet? When the Rosetta probe w...

Did you know that ZEISS products are orbiting a comet?

When the Rosetta probe was sent on her ten-year journey through space to the Churyumov–Gerasimenko comet, there were amongst others two spectrometer systems featuring ZEISS gratings on board. Thanks to the landing of the Philae minilab and the measurement data sent to Earth, the Rosetta Mission is highly successful and you can view stunning pictures made by the probe. Click the link to learn more:


“Did you know…” newsletter | ZEISS International
www.zeiss.com
“Did you know…” is a biweekly newsletter which affords you a fascinating insight into the world of Carl Zeiss and its applications. From the analysis of classical works of art to Oscar-winning lenses; from pull-out telescopes to examinations using “ultralight.”

from ZEISS Group's Facebook Wall

Impressive! New Batis 85mm almost matches the Otus 85mm performance!

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So, what’s the optical performance difference between the $4,490 85mm f/1.4 Zeiss Otus and the $1,199 85mm f/1.8 Zeiss Batis? Almost none! Just check out the comparison between the two MTF graph (Click to enlarge).

While the MTF performance is very close the Zeiss Otus still has the advantage of being faster (f/1.4 vs f/1.8) and it has less distortion. See the MTF and Distortion files here:
Zeiss Otus at Zeiss.de
Zeiss Batis at Diglloyd.

As our reader Seeky stated it relly looks like the 85mm Batis is a sort of mini-Otus!

Both lenses are now available for preorder in USA and Europe (UK/Germany)
Zeiss Batis 85mm f/1.8 lens in US at Adorama, Bhphoto. In Eu at Amazon DE, WexUK. In Asia at Digitalrev.
Zeiss Batis 25mm f/2.0 lens at Adorama, Bhphoto. In EU at Amazon DE, WexUK. In Asia at Digitalrev.
Lens shade for 85mm at Adorama, Bhphoto.
Lens shade for 25mm at Adorama, Bhphoto.

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from sonyalpharumors