Have fast lenses become less relevant?

Started 6 months ago | Discussions thread
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Redlegvzv
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Have fast lenses become less relevant?
6 months ago

I've been an amateur photographer since the late 1970s, first shooting film, then transitioning to digital with the D100, D200, and now the D5300.  One of the remarkable things that seems to be happening at present is that the camera bodies have vastly improved their ability to amplify low-light situations with higher ISO settings and less attendant noise.  For film, to get sharp low-light images (without flash) we had to have fast lenses, simple as that.  But now, is it not the case that you can use a much slower lens and simply crank up the ISO to get adequate light?

I was struck by several threads on this forum comparing the Nikon 70-200 F2.8 versus the F4 version -- which comparison illustrates my point.  While one stop certainly can be significant, is it not true that mostly you can simply increase the ISO on the F4 version a bit to compensate.

Of course, better (i.e. faster) lenses also tend to have clearer, better, sharper glass, which is a different thing (?).

Is my analysis incorrect?

I have the Nikon F2.8 VR1 70-200, by the way.  Thinking of "upgrading" to the F4 version just for the weight decrease and overall ergonomics.  Comments?

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Redlegvzv

Nikon D100 Nikon D200 Nikon D5300
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