Nikon AF-S DX Nikkor 18-300mm f/3.5-6.3G ED VR Lens I have been using a 5100 body with the DX VR lenses that came with the bundle - 18mm-55mm and 55mm-300mm. I recently purchased the DX 18-300mm VR Lens to replace both older lenses and save on having to switch between them during shooting. Checking out the new lens, I noticed something not quite the same when I racked out to 300mm on the new lens. Seemed to not give the same magnification as my old zoom @ 300mm. So I did some test shots to compare. At 18mm, both lenses were very close to same field of view, but there was a big difference in comparing the other zoom @ 300mm to the new 18-300mm zoom. I discovered, using the exposure data, that the field of view that the new lens gave @300mm was about the same as 185mm on the 55-300mm lens. Big discrepancy! So I went back to Best Buy and demonstrated this to the guy in the camera dept. and he too was mystified. We took another 18-300mm lens to test, same results on my 5100. We then tested the lenses on a 5500 body, same discrepancy. Then we tried a 70-300mm lens that had the same older zoom mechanism as my older 55-300mm and it gave matching 300mm results. So there seems to be a hugh difference with the newer zoom mechanism giving a true 300mm fov. Has anyone else encountered this issue and can anyone from Nikon explain why the difference? All lenses tested were AF VR series. Thanks! |