Questions tagged “fast lenses”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

0

votes

2

answers

164

Why is there an air gap between the lens and a digital sensor instead of index-matched glass or fluid?

lensessensorfast-lensescamera-designoptics

Photography Stack Exchange contributor

6y ago

0

votes

2

answers

185

What is the widest aperture available on a commercially made lens, and why are ultra-fast lenses so hard to design?

lensesaperturefast-lensesopticsgear

Photography Stack Exchange contributor

12y ago

0

votes

2

answers

203

Should off-center AF points still focus correctly with a lens that has field curvature?

autofocussigma-30mmfast-lensescanon-7dfield-curvature

Photography Stack Exchange contributor

13y ago

0

votes

2

answers

202

Which mirrorless camera is best for low-light nightclub photography?

nightclub-photographylow-lightmirrorlessfast-lensessensor-size

Photography Stack Exchange contributor

13y ago

0

votes

2

answers

123

How much does lens vignetting matter for wide-open portrait primes?

lens-performancefast-lensesvignettingprime-lensesportrait-photography

Photography Stack Exchange contributor

14y ago

0

votes

2

answers

291

Why are lenses faster than f/1 so rare, and what changes in their design?

depth-of-fieldlensesaperturefast-lensesoptics

Photography Stack Exchange contributor

15y ago

0

votes

2

answers

123

Do cameras secretly raise ISO with very fast lenses like f/1.4 or f/1.2?

fast-lensesvignettinglens-correctionsisoexposure

Photography Stack Exchange contributor

16y ago

0

votes

2

answers

212

How can I improve manual focus accuracy with a fast f/1.4 lens on a DSLR?

focusingdslrfast-lensesmanual-focuspentax

Photography Stack Exchange contributor

16y ago