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aperature number vs f number

Started 10 months ago | Questions thread
Toronto Photography
OP Toronto Photography Senior Member • Posts: 1,064
Aperutre number

Jethro B-UK wrote:

AnthonyL wrote:

Jethro B-UK wrote:

You are correct.

Oh dear, another mistake on my part.

I do know the difference between few and phew, believe me.

Phew, thank heavens for that. Now we just need to understand where this Aperture number comes from and we can sleep easy at night

Aye.

Lemmings351 answered how it  is derived. he did not leave its official name or when or who uses it.

 Toronto Photography's gear list:Toronto Photography's gear list
Canon EF 70-300mm f/4-5.6 IS USM Canon EF-S 55-250mm f/4-5.6 IS II Canon EF 24-105mm F3.5-5.6 IS STM
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