Size comparison of FE 4/2470 on A7 vs Olympus 12-40 f2.8 on GX7

Started 10 months ago | Discussions thread
Erik Magnuson
Forum ProPosts: 12,103Gear list
Like?
Re: It is very simple
In reply to Lab D, 10 months ago

Lab D wrote:

It is very simple. Take a specific lighting situation. If a P&S camera needs F/2.8, a shutter speed of 1/60th, and ISO 400, then your E-M1, A7R, RX10, etc. all can use very similar settings to achieve the same exposure.

But they would have much lower noise in the image.  Otherwise why did you choose ISO 400 vs. ISO 800 for the P&S.

If you decide that you RX10 has " a bgigger sesnor" and try to lower the ISO or rasie the shutter speed, then one of the other 2 setting will need to change accordingly.

Exactly - although the convention is to keep the shutter speed the same and change the aperture.  So if you shot the RX10 @ f/4 1/60th ISO 800, the images would look very similar in both DOF and noise.

-- hide signature --

Erik

 Erik Magnuson's gear list:Erik Magnuson's gear list
Canon EOS 5D Mark II Canon EOS 450D Sigma SD10 Sony Alpha NEX-5 Nikon D3200 +28 more
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