Jostein wrote: > Well that's an elusive answer if ever I saw one. Would you bother to > look up some examples to back your statements? I just gave you one to > the contrary, where I included data for both comparable AOV and > comparable focal lengths.
It is no more elusive than it has to be. See below... > Yeah. And how relevant is a comparison of a 35mm against a 67 system > to a discussion of the virtues of 645? Not at all, IMHO. Any reference > to the comparison by Keppler, btw? The relevance is that Pentax MF isn't expensive compared to high-end 35mm gear. > > In fact, by the logic of your argument in your first paragraph, the > range of comparable lenses will be even smaller for a 67 system than > for a 645. You'd be stuck with lenses in the normal range for 35mm, > which are wide-angles for the 67. If your reference is that narrow, > the scope of your initial statement "The 645 lenses are no more > expensive (or larger) than high-end Canon lenses" is just an > oversimplification at best. I don't understand your argument at all. Of course I'm not comparing a 35mm MF lens to a 35mm lens for a Canon. I'm comparing Pentax MF lenses with professional quality Canon L-lenses (or the Nikon counterpart) doing the same job in the new format context. I'm comparing choices a users of the system typically would had doing for doing a similar job. You can cover the angles of view provided by lenses from 20mm-200mm (in 35mm terms) by zoom lenses of professional quality for both Canon/Nikon and Pentax MF with as few holes as possible in focal lenghts, but the Pentax system will weight about 1kg less and cost less too last time I checked. I never did say that these lenses necessarily do exactly the same thing; I'm perfectly aware that one system may do certain things than the other. I'm also aware that you can get 35mm Caon lenses much cheaper if you go for the consumer stuff. What I was saiying was that Pentax MF (645) compares favourably both in size and prices compared to ! high-end Canon gear; nothing more nothing less and it is nothing lerss than the perfect truth. The fact is that I couldn't afford a high-end Nikon system but I can afford a Pentax 645 system. P�l

