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Forums > Back > RF 600/800mm f/11
faint
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#14
07-11-2020, 10:00 AM
(07-10-2020, 08:12 AM)Klaus Wrote: I'm a little puzzled by those MTFs, to be honest.

These are almost as good as for the old 200mm f/2.8L. I have a hard time believing that a f/11 lens is as good as an f/2.8 lens. But let's see ...

MTF are usually provided wide open. The only exception I can think of, is Zeiss - they provide additional MTFs at F4 or F5.6. If I remember correctly, their MTFs are also measured, not theoretical (I would not mind more Zeiss reviews :Smile )

In addition, focal length is 3x or 4x in mm, so MTF should be higher, if following the rule of thumb.
You just can't have too many lenses...
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Messages In This Thread
RF 600/800mm f/11 - by Klaus - 06-20-2020, 05:30 AM
RE: RF 600/800mm f/11 - by davidmanze - 06-22-2020, 06:46 AM
RE: RF 600/800mm f/11 - by Rover - 06-25-2020, 07:14 AM
RE: RF 600/800mm f/11 - by Klaus - 06-25-2020, 12:33 PM
RE: RF 600/800mm f/11 - by Rover - 06-25-2020, 04:45 PM
RE: RF 600/800mm f/11 - by toni-a - 06-26-2020, 09:56 AM
RE: RF 600/800mm f/11 - by Brightcolours - 06-26-2020, 10:12 AM
RE: RF 600/800mm f/11 - by Klaus - 06-26-2020, 11:05 AM
RE: RF 600/800mm f/11 - by toni-a - 06-26-2020, 01:09 PM
RE: RF 600/800mm f/11 - by Brightcolours - 07-10-2020, 06:54 AM
RE: RF 600/800mm f/11 - by Klaus - 07-10-2020, 08:12 AM
RE: RF 600/800mm f/11 - by faint - 07-11-2020, 10:00 AM
RE: RF 600/800mm f/11 - by Brightcolours - 07-10-2020, 09:07 AM
RE: RF 600/800mm f/11 - by Klaus - 07-10-2020, 10:18 AM
RE: RF 600/800mm f/11 - by Klaus - 07-11-2020, 10:53 AM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-12-2020, 01:26 AM
RE: RF 600/800mm f/11 - by Brightcolours - 07-12-2020, 04:40 AM
RE: RF 600/800mm f/11 - by Klaus - 07-12-2020, 08:38 AM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-14-2020, 10:52 AM
RE: RF 600/800mm f/11 - by Brightcolours - 07-14-2020, 11:42 AM
RE: RF 600/800mm f/11 - by Klaus - 07-14-2020, 11:02 AM
RE: RF 600/800mm f/11 - by davidmanze - 07-15-2020, 06:44 AM
RE: RF 600/800mm f/11 - by Brightcolours - 07-15-2020, 08:59 AM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-16-2020, 07:10 AM
RE: RF 600/800mm f/11 - by davidmanze - 07-16-2020, 09:43 PM
RE: RF 600/800mm f/11 - by Brightcolours - 07-16-2020, 02:04 PM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-16-2020, 07:54 PM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-19-2020, 08:28 PM
RE: RF 600/800mm f/11 - by davidmanze - 07-19-2020, 08:34 PM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-21-2020, 09:08 AM
RE: RF 600/800mm f/11 - by Brightcolours - 07-21-2020, 10:15 AM
RE: RF 600/800mm f/11 - by Arthur Macmillan - 07-21-2020, 11:23 PM
RE: RF 600/800mm f/11 - by davidmanze - 07-22-2020, 05:18 AM
RE: RF 600/800mm f/11 - by Klaus - 07-22-2020, 12:05 AM

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