On Sharpness, ISO and Shutter Speed

Started 11 months ago | Discussions thread
ferrellmc
Forum MemberPosts: 94Gear list
Like?
Re: Create a base image with no shutter vibration
In reply to Jack Hogan, 10 months ago

Jack Hogan wrote:

Good idea. People with affected cameras and strobe/lights will want to try it.

I did the test with the A7R, the results are here, scroll down to part II:

http://beforethecoffee.com/sony-a7r-vibration-comparison-with-nikon-d3-and-sony-nex-7/

I found that there is no discernible difference between an image taken with a strobe while the shutter was open for 10 seconds ie. no shutter vibration and a normal exposure with shutter vibration. I checked with a 35mm FE lens and a Nikon 85mm 1.4 and metabones adapter. I also did not see any difference in the A7R mounted on a sturdy tripod or resting on a table top. Both had image quality matching the strobe image with no shutter vibration.

I feel very comfortable in my conclusion that the A7R is not losing image quality due to shutter vibration.

Comments, criticisms, suggestions welcome.

Here is a summary screen capture:

-- hide signature --

www.beforethecoffee.com

 ferrellmc's gear list:ferrellmc's gear list
Nikon D2X Nikon D3 Sony Alpha NEX-7 Sony Alpha 7R Sony a6000
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow