Nikon Autofocus lens/crop factor
I recently compared two of my long lenses and am confused by the results.
Using my D 300 body I put on my Nikon 80 to 400 lens set at 300 mm.
I then attached my Nikon 18 to 300 mm also set at 300 mm (also on the D 300).
It definitely appeared to me that the 80 to 400 lens had a much narrower (re longer) view than the 18 to 300 mm lens.
I was under the impression that both lenses would have the field of view at the same focal length because of of the same crop factor.
Would appreciate any comments on this situation.
Visit my Nikonians gallery.
#1. "RE: Nikon Autofocus lens/crop factor" | In response to Reply # 0
#2. "RE: Nikon Autofocus lens/crop factor" | In response to Reply # 0JosephK Nikonian since 17th Apr 2006Sun 13-Jan-13 12:13 AM
The two lenses should be close in the field of view at the same length.
The lens is only at the marked length when focused at infinity.
There is also an industry standard for the percentage of error for the length, but I don't remember what the percentage is.
Seattle, WA, USA
D700, D200, D70S, 24-70mm f/2.8, VR 70-200mm f/2.8 II,
50mm f/1.4 D, 70-300mm f/4.5-5.6 VR, 18-70mm f/3.5-4.5 DX