first of all, I don't much care what you appreciate and what you don't. do you always take things personal and get offended when someone disagrees with something you say? I stand by what I said and wont apologize for anything. I wasn't rude, your comparison is in my eyes ridiculous. period.
second, YES nikon builds there lenses too large, and zooms are larger by nature anyhow. not everyone uses zooms, much less all zooms. why are you comparing nikon lenses, and then pushing that as proof? it proves nothing. nikon lenses are completely different from Pentax lenses and do not in any way represent what FF sizes should be. also the size difference (not taking into account differences in focal lengths and thus optical formulas) is miniscule overall between APS-C and FF. on paper yea it looks like a bit when comparing the lenses you listed. but in real world use, you wouldn't notice much difference. especially after your arms get tired. I never said image circle didn't effect lens size, what 'facts' am I denying? as for Oly... they promised smaller lenses and have yet to deliver. again what does this prove?
my point is that (especially regarding zooms) size between APS-C and FF is so little that most lenses (particularly anything from about 85mm and up) will be about the same size as an equal focal length FF lens. in a lot of cases there would be no difference at all if the lenses all had the same features. lighter? yes, smaller glass, mostly with wide angle focal lengths. beyond that, where is the difference?
take the DA* 55mm 1.4. its comparable in size and even weight with the FF FA* 85mm 1.4. despite the 55 being an APS-C lens and a shorter focal length. increase the focal length to 85mm and what do you want to bet they would be almost identical in overall size and weight?
im not saying that there is NO difference in size and weight between an APS-C lens and a FF lens, what I am saying is that its small and depending on the lens in particular, small enough to not even matter. as for balance. thats a matter of opinion based on the individual. personally I do better with a smaller body, whether its a larger lens or a tiny little prime.
how do you know what the typical buyer of a FF camera is? and what lenses they will likely be using? I bet the typical 5D buyer isn't some "pro" carrying around a massive L series, constant aperture zoom.
Originally posted by johnmflores Really? You better call up Nikon and tell them that how to make their FF glass smaller.
Because they are making their FF standard zooms too big:
APS-C
AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED
3.4" x 4.4", 755 grams
(it's interesting to note that the DA* 16-50 2.8 is even smaller at 3.3" x 3.9", 565 grams)
Full-Frame
AF-S Nikkor 24-70 /2.8G ED
3.3" x 5.2", 900 grams
APS-C
AF-S DX Zoom-Nikkor 55-200mm f/4-5.6G ED
2.7" x 3.1", 255g
Full-Frame
AF Zoom-Nikkor 70-300mm f/4-5.6G
2.9" x 4.6", 425g
Same with their image stabilised zooms:
APS-C
AF-S DX VR Zoom-Nikkor 55-200 f/4-5.6 IF-ED
2.9" x 2.9", 335 grams
Full-Frame
AF-S VR Zoom-Nikkor 70-300m f/4.5-5.6 IF-ED
3.1" x 5.6", 745 grams
To deny that imaging circle doesn't affect lens size is in complete denial of the facts. One look at the lenses that are coming out for micro 4/3rds should make that pretty clear.
Besides, current buyers of FF dSLRs are more likely than your weekend shooter to mount big, heavy, fast, high-quality, pro-grade glass, so a body that balances those big lenses better is a smart ergonomic decision.
And I didn't appreciate that you called my claims "ridiculous".