The diffraction tag has no wiki summary.
32
votes
6answers
3k views
What is a “diffraction limit”?
I've seen the term used, but what is a "diffraction limit", when should I worry about it, and what undesirable effects are a result of it ?
2
votes
1answer
120 views
Does increased resolution compensate for diffraction?
Given a sensor size, the diffraction limit (and cut-off) are determined largely (entirely?) by the density of pixels on the sensor. With the trend of ever-increasing megapixel counts, this means that ...
17
votes
3answers
925 views
Do smaller apertures provide more depth of field past the diffraction limit, even if peak sharpness suffers?
In Understanding Exposure (3rd edition, on page 48), Bryan Peterson has what might be called a rant against modern on-line conventional wisdom about diffraction limits. Answers on this web site are ...
6
votes
3answers
459 views
Is there any way starburst diffractions could be captured with a fixed f/2 smartphone lens? [closed]
There's been some controversy surrounding the publicity camera samples for Nokia's new flagship smartphone, the Lumia 920. First it was shown (and admitted by Nokia) that the stabilised video footage ...
3
votes
1answer
98 views
Is diffraction an issue with macro lenses?
I'm looking to try out macro photography and have a rental of the Canon 100mm 2.8L IS and the MT-24EX flash to try out on my Canon 7D.
I've been reading that with the flash, you can stop down to ...
18
votes
2answers
393 views
Do very short shutter speeds result in diffraction?
I'm curious if very short exposure times (say 1/8000 or even 1/16000) would cause noticeable blur due to diffraction.
To achieve very fast shutter speeds focal-plane shutters start to close the ...
10
votes
1answer
514 views
Does focal length affect diffraction, in addition to aperture?
The reason I ask is that f/18 on a 24mm lens = 1.5mm, and f/18 on a 180mm lens = 10mm. I thought diffraction is due to the small physical size of the aperture, rather than the f-ratio, yet I only ever ...
