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| Re: Olympus EM-5 & 12-50mm Sharpness?? |
Yeah, on m4/3, you're going to max out sharpness on this lens at around f/7.1 on the long end and f/5.6 on the wide end. (and most lenses at around f/4-f/5.6) f/11 will see a small effect from diffraction (though usually not too bad...this is the last aperture where I don't feel it really impacts the overall image). f/16 will definitely be softer than larger apertures.
Remember that on Micro 4/3, you're depth of field is double what you would get for the same FOV and aperture on full frame, so if you're used to shooting at 24mm and f/16 on full frame, then you can shoot at 12mm and f/8 and get the same image. Shooting at f/16 is equivalent to shooting at f/32 on full frame, which isn't a good idea.