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Showing posts with the label Autofocus

Rokinon 35mm 1.4 vs Sony 35mm 1.4 Autofocus Test

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Rokinon 35mm 1.4 vs Zeiss 35mm 1.4 Autofocus Test by David Vogt


Here is a quick video comparison of the autofocus systems of lenses at different price points. The Rokinon AF 35mm FE does a great job against the Sony 35mm Distagon while costing much less.


Rokinon AF 35mm f/1.4 FE

Sony SEL35F14Z Distagon FE 35mm f/1.4 ZA


The major difference comes when the light goes down.





Here are the key specs of each lens.

CombatantsRokinon AF 35mm f/1.4 FESony SEL35F14Z Distagon FE 35mm f/1.4 ZAMaximum Aperturef/1.4f/1.4Minimum Aperturef/16f/16Number of
Aperture Blades99Filter ThreadØ67 mmØ72 mmDimensions (ØxL)Approx. 2.99 x 4.53 in
(75.9 x 115 mm)Approx. 3.09 x 4.41 in
(78.5 x 112.0 mm)Weight1.42 lb1.39 lbPrice$799$1598

Ordering through the Amazon links above supports this site.


Thanks David Vogt for the informative video.


Download Sony a7rIII Manual Preliminary

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This is the manual for the new Sony a7r III / mark 3 46mp full frame camera with touch screen. We think this is a preliminary copy since it does not match the menu of the cameras we played with at Photo Plus Expo. We still think it's enough to feed those waiting for their a7r III pre-orders.

Download the a7r iii manual via Dropbox.

So what comes in the box if you bought a body only a7r III?

Accessories included with Sony a7r III


So here is the discrepancy in the manual, under Shoot / Drive Mode, Px. Shift Multi Shoot is missing. I hope the next revision will have better detail on Pixel Shift shooting.



Here is the Shoot Mode / Drive 1 menu on a pre-production Sony a7r III showing the Pixel Shift option.




Pre-order your a7r III from Amazon and support this site.


In case the Dropbox link dies, here is the Google link for the a7r III owner's manual.



Leica Thambar-M 90 on Sony A7 Cameras

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Leica Thambar-M 90mm on Sony A7 by Kazuhiro ITOH
Leica reintroduced their Thambar 90 f/2.2 lens this week. The look it produces is very distinctive, dreamlike image. Posted here is a gallery of Leica Thambar 90 images taken with the Sony A7 cameras via lens adapter. The 1935 designed Leica Thambar-M 90 can also be used in autofocus mode using the Techart Pro LM-EA7 adapter with the newest generation of Sony A7 cameras.

From Leica: The new Thambar has almost entirely adopted the design of the original lens – featuring the same proportions, black paint finish and red and white aperture scales as its 1930s predecessor. The red scale applies when the center spot filter is in place, which diminishes the effective aperture of the lens – for example, from 2.2 to 2.3 when wide open. When working without the center spot filter, the white aperture scale is used. In order to retain its vintage appeal, the Thambar’s exterior has only been subtly adapted to reflect the pared-down character of c…

Sony FE 12-24mm f/4 Lens Announced

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FE 12-24mm @12mm/F11 ISO:100 SS:1/30 s.

SEL1224G

Here is the perfect travel lens for those narrow ancient streets, vast landscapes, beautiful interiors, and anywhere close quarter shooting is required. The Sony FE 12-24mm f/4 G lens is an ultra-wide zoom lens that weighs over a little a pound - half the weight of the Sigma and Canon equivalents.

The official word from Sony:

New FE 12-24mm F4 G Ultra-Wide-Angle Zoom Lens

A uniquely designed ultra wide-angle zoom lens, the new FE 12-24mm F4 G lens produces outstanding image quality in a compact, lightweight design, weighing in at approximately 20 oz. Sony’s widest full-frame E-mount lens, it offers a dynamic perspective for landscape, architecture and interior photography, and is well-suited for both stills and video shooting.

The lens features an innovative optical design with four aspherical elements that ensure excellent corner to corner sharpness and resolution. Additionally, the lens has three ED glass elements and one Super ED gl…

Sony Alpha a9 Eye AF Test

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Eye AF (autofocus) Test with the Sony a9
Let's see how the new Sony a9 handles Eye AF.



Here is good video on the use of Eye AF.

Eye AF Basics from Adorama


Must Have Sony Alpha a9 Accessories.

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Sony Alpha a9 (ILCE-9) Body Only

The Sony Alpha a9 (ilce-9) is sold body only. Here is what's listed as what will come in the box with the a9:

Power cordRechargeable Battery NP-FZ100Battery Charger BC-QZ1Cable ProtectorAC AdapterShoulder strap Body capShoe capEyepiece cupMicro USB cableInstruction Manual










Here are some items that every kit should have.

Two UHS-II memory cards to take advantage of the a9's dual slots. 1 hr of 4K video will take up 46 gb of storage.

64gb UHS-II SDXC Memmory CardAn extra battery. The NPZFZ100 is conservatively rated at 650 shots per charge. Or you can also get the NPAMQZ1K Multi Battery Rapid Charger which comes with 2 batteries.

NPFZ100 Z-series Rechargeable Battery PackA screen protector.

PCKLG1 Screen ProtectorA flash that you can build a system on. The godox tt350s can handle HSS of the Sony system. It can also be a wireless flash trigger when you add the larger V860II-S lithium ion-powered flash.

Godox TT350S TTL High Speed Sync FlashA lens to…

What is Sony A9 Blackout-free shooting?

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Sony A9 at 20 fps Blackout-free Shooting
From Sony:

Blackout-free shooting
Thanks to the non-mechanical electronic shutter system, you can observe the reality of what you’re shooting through the electronic viewfinder even during continuous shooting, without blackout interruption that typically occurs among optical viewfinders due to up-and-down mirror motion. Enhanced speed of the image sensor eliminates distracting EVF display lag in continuous shooting, so that you can compose images with natural comfort, like seeing scenes with your own eyes.

Differences Between Sony A9 and A7 II

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New Sony A9 ILCE-9 Camera
This is the new flagship camera from Sony dubbed the A9, model designation ILCE-9.  It boasts 20 fps shooting with 693 focus points and a blackout-free 3.69 mp electronic viewfinder.  The camera is capable of shooting 4K (2160p) movies.  The A9 has dual memory card slots and a new battery.
Let's see how it compares to the previous 24 mp A7 II camera.

CombatantsSony Alpha 9 (ILCE-9)Sony Alpha 7 II (ILCE-7M2)Number of effective pixels24.2 MP24.3 MPISO Sensitiviy50-204800 (3 stops better)50-25600Movie SizeXAVC S 4K:3840 x 2160(30p, 100M), 3840 x 2160(24p, 100M), 3840 x 2160(30p, 60M), 3840 x 2160(24p, 60M), XAVC S HD:1920 x 1080(120p, 100M), 1920 x 1080(120p, 60M), 1920 x 1080(60p, 50M), 1920 x 1080(30p, 50M), 1920 x 1080(24p, 50M), AVCHD:1920 x 1080(60p, 28M, PS), 1920 x 1080(60i, 24M, FX), 1920 x 1080(60i, 17M, FH), 1920 x 1080(24p, 24M, FX), 1920 x 1080(24p, 17M, FH), AVC MP4:1920 x 1080(60p, 28M), 1920 x 1080(30p, 16M), 1280 x 720(30p, 6M)AVCHD 2.0 / MP4 /…

Use Medium Format Lenses with Sony A7 Cameras

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Sony A7 ii with a Mamiya 645 80mm f/1.9 lens via Kipon Baveyes Focal Reducer.


Here is a review of the Kipon Baveyes medium format lens focal reducer adapter for Sony A7 cameras.  This adapter has a lens element that concentrates the medium format image circle down to the size of a 24x36mm sensor of the Sony A7 cameras with a 0.7x factor.  The 80mm lens above has an equivalent focal length of 56mm.  The concentrated light also gives us one stop of extra light.  The f/1.9 is an equivalent f/1.36, a very fast medium format lens. This a manual focus lens adapter.


Kipon Baveyes Medium Format Lens Focal Reducer Review by @mattiasburling

Read the complete review at gunpowdervideo.com.

Thanks @mattiasburling !

Check out Kipon for all available medium format focal lens reducer adapters.


Let's go a step further by adding the TECHART LM-EA7 Autofocus Lens Adapter with the Kipon Baveyes we can have a medium format lens autofocus system.

from Mathieu Gasquet







Getting the Shot Sony A7r II vs 5d Mark III

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Bokeh Battle 85mm Zeiss Otus vs Sony G Master
The video above from DigitalRev TV shows the advantage of electronic viewfinders found on Sony cameras. The evf betters optical viewfinders by providing a more accurate way to manual focus lenses. The Sony A7r II provides a magnified view for focusing. It also has focus peaking which highlights portions of the image that are in the focus zone. So getting the shot with the Otus is a much easier task with an EVF.

Another advantage shown is that Zeiss only provides autofocus lenses for Sony - the Batis line. The A7r II had no problems locking focus with the 85mm G Master. Canon and Nikon shooters can only use the Otus and Milvus line, which Sony shooters have access to as well.

Which do you prefer?


Louis Vuitton America’s Cup New York

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One World Trade Center with America's Cup AC45 Catamarans.

America's Cup racing returned to New York City after a 96 year absence. The Cup is currently in the hands of the USA, Team Oracle. There are six teams in the Louis Vuitton America’s Cup World Series which include Artemis Racing, Emirates Team New Zealand, Groupama Team France, Land Rover BAR, ORACLE TEAM USA, and SoftBank Team Japan.


Emirates Team New Zealand with the Empire State and Chrysler Buildings.
America's Cup AC45 Catamarans Anchored in Jersey City.
Lower Manhattan behind the America's Cup Catamarans.
Brooklyn behind Land Rover BAR Team Great Britain and Artemis Racing Team Sweden Catamarans.
Land Rover BAR Great Britain, Groupama Team France, and Emirates Team New Zealand.
Ellis Island and the Statue of Liberty.
Team Emirates Flying Hull.
Team Groupama Flying Hull.
Oracla Team USA Double Flying Hull.
Manhattan and America's Cup.
The photos show here were taken with the NEX-7 with the Minolta 24mm f/2.8 MD…