Fast lenses, and High ISO

Started Jul 18, 2014 | Discussions thread
Chris R-UK Forum Pro • Posts: 18,271
Fast lenses and sensor size

Fast lenses are clearly less important on MF and FF cameras because the larger sensor allow for higher ISO settings and better DoF control.

However, as sensors get smaller, fast lenses as measured by the f-number became much more important because high ISO performance is worse and depth of field control is more difficult.

That is why Voigtlander has a range of f/0.95 lenses for M4/3 and there are superzooms like the Panasonic FZ200 with f/2.8 over the entire 24x zoom focal length range.

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Chris R

 Chris R-UK's gear list:Chris R-UK's gear list
Olympus E-M1 Olympus E-M1 II Olympus M.Zuiko Digital ED 9-18mm F4.0-5.6 Panasonic Lumix G 20mm F1.7 ASPH Olympus M.Zuiko Digital 45mm F1.8 +3 more
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