Hi,
I've decided to get a not very expensive telephoto zoom to use with my D90 and the Sigma 135-400 F4.5-5.6 APO seems to fit the bill.
I am trying to decide which version of this lens I want to buy (second-hand). I believe that the "DC" and "DG" versions are for cropped and full frame respectively, but I can't find any info anywhere online about the "D" version, even though there are lots on sale.
Could anyone offer any guidance on this?
All info' welcome. Thanks.