- Apr 20, 2020
- Beaumaris, Melbourne, Australia
- Real Name
- John ...
You're welcome.Thanks for those links
Those PNG files with all the lines will be good to compare my lenses.
From what I can see the Oly 100-400 is a bit sharper than my Panasonic 100-300, but it will be good to actually put that to the test and those two charts look like they may be able to help. Only judging this by a shot I took of the back of a bird and the feather detail looks better on the OLy I think. But the Panasonic was hand held and the Oly was on a monopod.
That can potentially make a huge difference.
Lens testing should be performed from a solid tripod, in accordance with the procedures in (particularly) the USAF document. Preferably with both remote release and shutter delay of 3-5 seconds. Also preferably, the tripod should be properly damped.
I have started a thread on this subject in this forum. Hopefully it will be made 'sticky'.