luis_lucero

Thanks to all of you for the answers. A very educational discussion to me. I shouldn't base my decision on the performance of one lens. True.

Rainer, thanks for the links. I have consulted the tests, and I took both cameras in my hand and played a little, as you and others wisely said. But then I'm going to consider the D200, as Elliot suggested. Have any of you heard of or experienced any technical malfunctions with the D200, such as "banding", or other calamities that needed to be fixed by the manufacturer? Are things that complicated with the D200?

I don't want cameras doing unexpected nasty things when I'm trying to tune my "mind's eye" into an image.

Shun, thanks for your highly instructive elaborations. But what would be the advantage of upgrading to a full-frame body? Would it be perhaps equivalent to upgrading from 35mm film to a medium format 6x6 or 6x7cm negative? And moreover, why not just continue shooting with those great film cameras, say, Leica M6, Rollei SL66, etc, and buy instead a beautiful Nikon film scanner and then "digitalize" the images?

What would be the difference between a digital image from a scanned fine grain technically "perfect" negative and a digital image from a digital camera such as those we are considering? Do you know of any tests on this matter? I think this would be very interesting to know, because it might open a new door, to enter into the world of digital photography with my beloved Leica M6 under my jacket. A fusion of the two worlds, without loosing anything, and perhaps a lot to gain...

Gentlemen, I'm looking forward to hear from you again.

Thanks to all of you.

I'm new to photo.net forums, and I'm very pleased by the level of the

discussions I have read here. I have learn already a lot from other members

questions and answers concerning digital photography.

Therefore, I'm confident that you guys can help me on an important decision.

I would like to know how the Nikkor 17-55mm f2.8 DX lens compares to the similar

focal length Canon EF-S 17-55mm f2.8 IS USM, in terms of resolution,

distortions, and other critical performance parameters, or any other

considerations that in your opinion I should be aware of.

I do not have any of those lenses at present time, nor any of the DSLR cameras

to use those lenses either. After many years of practicing film photography as a

dedicated advanced amateur in 35mm and various medium formats, mostly black and

white with high quality equipment, and now closer to retirement, I'm thinking of

"going digital" beyond the basic level of a "point and shoot". But I haven't

decided yet between the Nikon and Canon DSLR cameras yet. I believe that

learning of the differences between these two lenses, meaning the 17-55mm/2.8

zoom range from the two brands, will significantly add reasons to decide which

way to go. Let's say, the Nikon D80 or Canon 30D roads. No offenses meant to

Nikon or Canon enthusiasts, please.

Thank you very much for any "light" on this matter.