On Sun, Sep 08, 2013, Godfrey DiGiorgi wrote: > > FourThirds format lenses were designed from the ground up for > FourThirds format cameras. It is a complete system, with a different > format proportion and sizing basis. The lens system covers the entire > range of useful focal lengths and lens types from fisheye, ultra-wide > rectilinear, up to 600mm telephoto. You don't have to know anything > about "35mm equivalent field of view" or "crop factors" to use > Micro-FourThirds and FourThirds equipment ... They are irrelevant > to the system, which is not derivative of anything from 35mm film > cameras. > > That's why I never mentioned "crop factor" to Marnie. It's simply not > even remotely relevant unless you want to adapt a 35mm camera lens to > a FourThirds format camera.
Unless I'm missing something, there is no currently-available 600mm lens for either 4/3 or m4/3, so right there you're talking about crop factor (given the 300mm lenses available). It would seem that you're making my argument for me. ;-) Given that, I think the crop factor issue is particularly important when you're comparing cameras with different sensors and trying to evaluate lens availability. I mean, you need to know that for m4/3 you want a 45mm lens for a "standard portrait" lens. -- Hugs and backrubs -- I break Rule 6 http://rule6.info/ <*> <*> <*> Help a hearing-impaired person: http://rule6.info/hearing.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
