OK, I see your point but I'll try to explain mine, which I think is complementary rather than contrary.
It seems that a lot of the interest in this camera / system is the ability to use any kind of old lenses on it through adaptors. Regarding this, I have a colleague at work that collects all kind of old lenses, specially m42 screwmounts, and uses them with the *ist Ds that I sold to him and in a EOS 350D. I told him about this system and his response was "yes, but they will look as 2 x focal length, so no more wide angles. I am not interested on this". And then I remembered about my Pentax A24/2.8, that was one of my favorites when shooting film since it gave me a field of view that none of my other lenses could give. However, I have almost never used (except for comparison tests) in digital due to its 'new' field of view. That's just what I wanted to say: be careful if you are considering this system in order to use your old lenses on it because the 'conversion factor' (or whatever you want to call it) is greater that on APS-C. Having said that, I realize that for some people this may be an advantage, but for others, like my colleague, it was a clear disadvantage when using his old lenses. If you like a lens just for its pure optical quality, then fine, it will preserve it. But if you like a lens for the combination of optical quality and field of view (which was my case with the 24mm), then the game is over. Just wanted to make sure that, whatever category the readers fit, they know in advance about this. Regards, Jaume ----- Mensaje original ---- De: Godfrey DiGiorgi <[email protected]> Para: Pentax-Discuss Mail List <[email protected]> Enviado: jueves, 15 de enero, 2009 16:32:35 Asunto: Re: Panasonic G1 ... example photo @ ISO 1000 I absolutely despise all this "crop factor" nonsense. It's so ridiculous. There's no such thing as a crop factor. Field of view is a property of a focal length combined with a format. Normal on 35 film is 50mm, normal on FourThirds is 25mm, normal on 645 is 75mm, etc. That's all. My FourThirds cameras include field of view choices from 89 to 4.4 degrees on the diagonal, using lenses with focal lengths from 11 to 280 mm. A Pentax M50/1.4 provides an excellent long-portrait-tele field of view. 80-90% of my G1 photos to date have been made with the 25mm lenses I have. A near perfect kit for the G1, for my photography, will have the lenses 7-14/4, 20/1.7, 25/2.8 (and f/1.4), 40/1.4 and 75/2.5 in it. I don't have them all yet ... two aren't available yet ... but that's where it's going. Godfrey On Jan 15, 2009, at 12:56 AM, Jaume Lahuerta wrote: > Before doing something that you can regret, remember the conversion factor > that 4/3 and m4/3 introduces in a 35mm lens, which is 2 instead of 1.5 for > APS-C. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
