Review on Nikon 17-55mm f/2.8G IF-ED Zoom Lens with Auto Focus - Ideal for Nikon DSLR Cameras by Keisuke Shimizu ᠌

I rented such a lens! His condition was not very good, the rubber bands were peeling off (this is a problem for almost all prof. Nikkorov), but I want to note the pictures from him are excellent! It is very fast, aberrations are corrected in Lightroom, as well as distortion! He is incredibly fast and tenacious! Regarding the conversion to crop - the equivalent focal length is really recalculated (it turns out, as it were, 25.5-82.5), but it is exactly equivalent, i. E. amo focal length does not change, this is the case if you reduced the frame in the editor to fit the crop! As for blurring, someone wrote that the aperture increases to f4. This is not entirely true, the aperture ratio, as it was 2.8, remains 2.8, but the blur corresponds to the blur at aperture 4 in full frame! Therefore, if you have parameters for example. Iso 100, f2.8 1/125s on the crop, then on the full frame there will be the same exposure with these parameters, only the blur is stronger! In conclusion, I will say that the lens is really cool, but it makes sense to buy it if you stay on the crop! As they say, a beginner will not buy himself, but the pros are already at full frame)))