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-   -   Double Focal Length - does that mean... (https://www.dvinfo.net/forum/panasonic-lumix-s-g-gf-gh-gx-series/332577-double-focal-length-does-mean.html)

Brian Boyko August 28th, 2009 11:22 AM
Double Focal Length - does that mean...
 
I was thinking about buying a 300mm FD lens for my GH1 - this, as far as I can tell, is 600mm equivalent when placed on the FD? Meaning, that a Telephoto 100-300mm f/5.6-6.7 Manual Focus Lens would be functionally equivalent to a 200-600mm f/5.6-6.7? Was thinking about picking one up for sports photography.

Tom Hardwick August 28th, 2009 01:23 PM
Your maths is spot on if the 4/3rds GH1 has a 2x factor in its chip size relative to the standard 36 x 24 mm frame.


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