Rethinking 4/3 Depth Of Field

Started Apr 11, 2013 | Discussions thread
Great Bustard Forum Pro • Posts: 42,261
Re: I like shallow DOF occasionally, and it can be done cheap on FT...

Hen3ry wrote:

Look at the pair of you -- Roel & Bustard, like the old Pat & Mike comedy acts.

Who are you calling old?! 

Okay, Bustard, you miss a point I was trying to make: the very bright lenses I was referring too which cost a fortune -- that was back in the day, the 60s and 70s, even into the 80s. They are cheap now, comparatively.

The point was the ability to get good focus manually was dependent on having a bright lens on an SLR so they were in big demand -- but not necessarily to actually take the picture.

Don't know about film (never shot it), but for modern DSLRs, anything brighter than f/4 doesn't result in a brighter viewfinder.  In addition, anything faster than f/5.6 still uses f/5.6 AF points with no additional advantage (in terms of lens brightness), and anything faster than f/2.8 still uses f/2.8 AF points (again, with no additional advantage for brighter lenses).

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