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Author Topic: 428Ex Backfocus?  (Read 8718 times)

bwa

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428Ex Backfocus?
« on: February 11, 2012, 09:14:09 am »
Is the backfocus on the 428Ex the same as the 420 & 450?  13mm sensor to flange?

bwa

bwa

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Re: 428Ex Backfocus?
« Reply #1 on: February 14, 2012, 12:35:29 am »
Is the backfocus on the 428Ex the same as the 420 & 450?  13mm sensor to flange?

Can someone clarify this!?  My EOS lenses are "telling" me the backspace is closer to 22-27mm as opposed to 13mm...  What is the official value; sensor -> flange face?

bwa

ruitripa

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Re: 428Ex Backfocus?
« Reply #2 on: February 16, 2012, 01:24:01 am »
Approx 13mm.
Rui Tripa