I've been having some focus issues with my 35mm 1.8 lens on the Nikon D7000 so I printed out one of them AF charts and managed to get the profile for the 35mm spot on, however, I've tried doing it with my Sigma 10-20mm and at 10mm the top of the chart seems to be the only thing in focus, at 20mm the centre is in focus .. is there something special I need to do to tune a zoom lens?
Problems tuning AF for different lenses
- Thread starter Cuchulain
- Start date
Thanks chaps, I don't tend to use anything other than F11 on that lens anyway so it's no biggie. For other zoom lenses (18-200 specifically) I'm guessing I'd be best snapping the focus chart at max. focal length where the dof is the most shallow?