Maths not your strong point then Mark, 500 x 1.7 = 850*It could be a 500mm with a 1.7x as well - I'd forgotten that Andy uses the dark side!
Maths not your strong point then Mark, 500 x 1.7 = 850![]()
)Nah, thats a common problem with Sigmas.Close enough for government work!
(It's also a Nikon - you'd probably loose 30mm off the published length anyway)
For cycling shots most of the time it's my 70-200mm f2.8 or occasionally I'll sit or lie on the inside of a bend with a 17-40mm on.