Fast lenses, and High ISO

Started Jul 18, 2014 | Discussions thread
Chris R-UK Forum Pro • Posts: 18,876
Re: "fast" is relative

tko wrote:

Remember that F4.0 is considered kind of slow on FF, but is equal to F2.0 on M43rds, which is considered "fast."

A F0.95 lens on M43rds is equal in performance to a F2.0 lens on FF, which (for a prime on FF) is pretty slow.

We won't even talk about how slow the superzooms are in FF terms.

I don't disagree with you.  I was just making the point that "low f-number lenses" become more and more important on smaller sensors.

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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 +4 more
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