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describes clarity of detail, the perceived combination of resolution and acutance.

learn more… | top users | synonyms

10
votes
2answers
3k views

How can I/should I check the sharpness of my camera lens?

The sharpness of a lens is a major concern for most photographers. This might be because we are worried about a defect in the lens, a problem with our technique or a problem with the camera. Or we ...
1
vote
2answers
565 views

Am I being unrealistic about image quality expectations from Canon 70-200 F/4 USM IS L Lens?

I'm shopping for a 70-200 F/4 USM IS L, and took a few test shots with it. Here's a full resolution jpeg, and a 100% crop with a focus point highlighted. It was shot handheld with IS on at 70mm / F4 ...
20
votes
5answers
14k views

How can I determine the minimum shutter speed to avoid blur from camera shake?

How can I determine the minimum shutter speed at which I can effectively avoid camera shake while hand-holding the camera?
4
votes
5answers
2k views

Are Sigma DC 18-50 1:2.8 EX sharpness problems common with wide apertures?

I got this Sigma DC 18-50mm f/2.8 EX MACRO HSM lens few weeks ago, but I noticed considerable sharpness problems with wide apertures. Until f3.5 (or even f4.5) this lens can't really be used. I would ...
20
votes
4answers
3k views

Why should my last post-processing step be sharpening?

I've seen a number of people recommend that you apply sharpening as the last step in post-processing, and some seem to imply you should always do that. Why? I tend to discard pictures that either are ...
7
votes
2answers
2k views

Microsoft Paint renders pictures sharper than others

I use Picasa 3 to view my pictures, but today I just happened to open a picture in Microsoft Paint. MUCH sharper at ALL picture sizes (Zoom in and out). So I compared a few pictures in Paint to ...
33
votes
5answers
4k views

Focus problem vs. motion blur vs. camera shake - how to tell the difference?

I'm not sure if the title of the question captures what I mean, but it's hard to be succint in the space allowed. Suppose you have a picture that is not as sharp as you think it should/could be. ...
21
votes
3answers
3k views

What goes into making smooth, crisp, fashion magazine worthy shots?

I bought an SLR, a Nikon D70, several years ago with the intension of eventually reproducing the smooth but crisp effect I had seen from my favorite portrait shots like this one from Declan McCullagh: ...
26
votes
3answers
4k views

With all other things equal, in a DSLR, will a larger sensor produce a sharper image?

I asked a question a while ago here about the "sweet spot" of a lens, which led to a really interesting discussion of "sharpness", the physics of light, and general image quality. 1st Question In ...