2014 Jan 11 - Sat at 21:30 re:Re: [OM] What would you buy? …
Moose <olympus@xxxxxxxxxxxxxxxxx>wrote …
>The NEX-7 has one more bit of color depth, 24 vs. 23. What does
>that even mean? The sensor is 14 bit; what are these other bits?
>Are they talking about some measure of color space? Is one bit out
>of 24, 4%, whatever it is, noticeably different in images?
Each extra bit doubles the colour accuracy - so that 1 bit is a 100% increase.
Now, it may
not be very visible...
>It has 0.7 EV greater DR than the E-M1. Is that a meaningful
>difference? Do the Raw files from both respond the same to
>highlight recovery in ACR? Honestly, that can more important than
>half an EV in the file.
..7 EV = a 50% increase (1 EV would be 100%) in sensitivity.
If you really want a speed increase, use a 1.5/1.6 or 4/3 mirrorless camera and
http://www.dpreview.com/news/2013/01/14/metabones-and-caldwell-photographic-annouce-speed-booster-lens-adapter-for-mirrirless-cameras
It works by concentrating the full-frame image into half the space, reducing
focal length
and f/stop.
You could put an OM 50/1.4 lens in a EF EMF adapter and have an f/1 normal lens!
Take that, Noctilux!
tOM
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