Panasonic 100-300 vs. Olympus 75-300 II lens test

Started Apr 4, 2013 | Discussions thread
Anders W Forum Pro • Posts: 21,468
Re: Really?

marike6 wrote:

tt321 wrote:

marike6 wrote:

I came here looking for this lens test and all I found were two blurry, low-contrast images.  If you are trying to convince that you shot those two images locked down on a stable tripod, then it's likely that something else is going on here.

1/15 is a notoriously poor shutter speed with telephotos on DSLRs because of mirror/shutter vibrations, but obviously that's not the case here, so only you can say why IQ is so poor.

The OP shot through office window glass. Have you not read his posts?

Shooting through a window will hurt contrast, but will not cause an image to be blurred.

It can certainly cause an image to be blurred, in part because contrast and resolution are not really separable (MTF is resolution at a given contrast level or contrast at a certain resolution level) but also for reasons similar to those outlined here:

The point is the OP made it a point of saying how he carefully shot these images locked down on a Gitzo tripod with a BH-55 ballhead, so that is why questioned what was going on.

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