Previous versions of AmbientMike's message #8821675 « Canon EF 300mm f/2.8 L IS USM Sharpest Aperture »
AmbientMike Offline [X]
Re: Canon EF 300mm f/2.8 L IS USM Sharpest Aperture
Usually lenses are sharpest around f/8. Sometimes f/11, sometimes f/5.6.Have seen graphs of the sharpness of 300/2.8, I think non-is, on the web. Usually you lose some by f/16 but not always, and will you see it anyway? Canon\'s 300/2.8\'s are great but I doubt they\'ll be sharpest wide open. 2.8 is probably their worst aperture until 16 or 22.
Sep 06, 2010 at 12:05 PM
Previous versions of AmbientMike's message #8821675 « Canon EF 300mm f/2.8 L IS USM Sharpest Aperture »
