Originally posted by stormtech I agree with you Lowell. However, I feel that any comparison review should only be with lenses that are available to buy new right now - at least that is my selfish attitude as I am in the market to buy one of these right now.
But the whole point is, many times people are in the market for a new lens, and in some cases, even the photo magazines and lens reviews indicate that, for example, the sigma APO 70-200F2.8 EX DG Macro and Macro II lenses are not as good either wide open or at maximum focal length as the sigma APO 70-200F2.8 EX non macro version.
So the questions are,
Do you buy new, or used?
If you buy new, what do you buy?
if you buy used, what do you buy?
If you already own a lens that goes to 200mm at F2.8, do you trade for a newer model?
As I said, it would be great if there was a way, where we could control the test such that multiple members could contribute with thier lenses.
Maybe it is as simple as building a small scale Lego Model, and shooting it from different distances and then cropping in. we could control lighting with either flash, or daylight with the sun at a specific angle.
but I have hijacked the thread enough with this discussion