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Forums > Back > RF 600/800mm f/11
#30
Yes, Dave, I would have to try before I buy!


As an aside, I believe that the 20MP (full frame) camera is not diffraction limited until about f/13, so for that camera, if I am right, it would not be absurd to expect sharpness. And I was serious that the aperture stopping down can effect sharpness.

Now about my fantasy...I have used the 70D, and you have been using the D500, both of which are APS-C, though I had to deal with a tougher 1.6x versus your 1.5x. I used my 70D for Macro quite a bit at f/11 and didn't seem any the worse for it. I know in theory there should be diffraction, but since it was often necessary for a sufficient DOF I had to use it. Therefore I am not expecting it to be unusable with a telephoto.

Still, I would, in reality, want to go back to 20mp. I can always do some shooting at f/11 with the 90D, but now that I think of it...I have been mostly shooting wide open. If you can call F/5.6 wide, that is!

The truth that is sinking in, is that I am hooked. I think I might actually want an RF camera! Maybe not now. But soon!

-Mac
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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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