Exposure basics, lesson two point one (& ISO)

Started Mar 19, 2013 | Discussions thread
Martin.au
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Re: Correction: G3 vs EM5 - Estimates of Ratios of Light Exposure
In reply to Jack Hogan, Mar 21, 2013

Are you able to do this calculation for the E520, based on its old studio scene image?

Afraid not, you need the raw data.

I presume I'd need a grey card to photograph to given oyou useful raws from my e520?

 Martin.au's gear list:Martin.au's gear list
Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Fisheye 8mm F3.5 Olympus M.Zuiko Digital ED 12-50mm 1:3.5-6.3 EZ Olympus M.Zuiko Digital ED 60mm 1:2.8 Macro +3 more
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