Fast lens
This article is a gallery of very fast lenses (see also lens speed) beyond average "fast" definition.
For APS-C format these are lenses with max. aperture of at least f1.4!<br(>
For 35mm film frame format these are lenses faster than max. aperture f1.7 since
the average 50mm SLR system standard lens already has a speed of f1.7 or f1.8!
For medium format these are lenses with max. aperture of at least f2.0!<br(>
For large format these are lenses with max. aperture of at least f2.5!<br(>
Contents
"fast" classification
format | benchmark | quite fast lens | common fast lens | notes about the "very fast" definition given above |
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large | f2.5 | f3.5 | f6.3 | f2.5 equals the benchmark set by the Kodak Aero in 1940 |
medium | f1.8 | f2.8 | f3.5 | f2.0 pushed the available light photography with the Ernostar in 1924 |
35mm | f0.95 | f1.4 | f1.7 | f1.6, because faster than f1.7, a lens speed which is almost average for the SLR normal lenses since the 1960s which were also the kit lenses. Fast lenses for leaf shutter SLRs reach only f1.9 max. lens speed. |
APS-C | f0.95 | f1.8 | f2.8 | f1.4 because smaller format than 35mm requires faster lenses for achieving almost similar depth of field |
Micro Four Thirds | f0.95 | f1.8 | f2.8 | |
cine lens (C-mount) | f0.95 | f1.4 | f1.7 |
large format
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medium format
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35mm
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APS-C format
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average "fast lens" samples
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