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Forums > Back > Focal Length equivalence: DX to FF
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#9
05-19-2011, 01:20 AM
[quote name='Brightcolours' timestamp='1305762564' post='8569']

So that makes it closer to 1 1/3rd stop... not 1.08 or 1.14 <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='Wink' />.

A tad over 1 1/3rd stop for Canon APS-C, a tad under 1 1/3rd stop for "Sony" (Pentax, Sony, most Nikon APS-C).

[/quote]

Oops, forgot the square dependence. However after recalculation I still get that Canon is ~1.3 stop and Nikon is ~1.15 stop. Mind sharing how do you get that 1 1/3 stop figure?
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Messages In This Thread
Focal Length equivalence: DX to FF - by IanCD - 05-18-2011, 09:54 PM
Focal Length equivalence: DX to FF - by mst - 05-18-2011, 10:15 PM
Focal Length equivalence: DX to FF - by IanCD - 05-18-2011, 10:19 PM
Focal Length equivalence: DX to FF - by mst - 05-18-2011, 10:50 PM
Focal Length equivalence: DX to FF - by Guest - 05-18-2011, 11:26 PM
Focal Length equivalence: DX to FF - by Guest - 05-19-2011, 01:20 AM
Focal Length equivalence: DX to FF - by Guest - 05-19-2011, 07:26 AM
Focal Length equivalence: DX to FF - by Guest - 05-19-2011, 08:01 AM

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