On Sharpness, ISO and Shutter Speed

Started Nov 29, 2013 | Discussions thread
exdeejjjaaaa Veteran Member • Posts: 8,263
Re: On Sharpness, ISO and Shutter Speed

Jack Hogan wrote:

Shutter Speeds Correspond to ISO 200-6400

For instance the dip in performance of the EM5 at base ISO. There have been suggestions that some cameras suffer from obvious shutter shock. Could this be it? Let's take a look at its younger brother, which reportedly shows the issue more clearly

Shutter Speeds correspond to ISO 100-6400

Whoa. Looking at the relative images in the comparometer confirms these results: below 1/320th the EM1's images are definitely blurrier. Shutter Shock, changed lighting, changed positions, changed hardware, misfocus, operator error? And what do we make of that vertical/horizontal crossover?

E-M1 has faster x-sync than E-M5 - so shutter blades impact (higher speed) affects suspended sensor more... as as result I use only manual (non TTL) flashes @ 1/400 xsync now, that allows me to move futher away out of shutter shock prone exposure speeds...

 exdeejjjaaaa's gear list:exdeejjjaaaa's gear list
Sony Alpha a7R II Sony FE 55mm F1.8 Phase One Capture One Pro +25 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow