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SammyC · 19-02-2006, 12:30

Ok, well I've used the focus test sheet for a comparison of my four lenses (I appologise now for the size of these crops):

25-105 at 63mm and f11

50mm prime at f11

Kit lens at 55mm and f11

Sigma at 168mm and f11

This one is the 28-105 at f4.5 and shows it front focussing. Very weird as it corrects this as you narrow the apperture!

19-02-2006, 12:30	#4 (permalink)
SammyC Forum Regular Join Date: Jul 2005 Location: Bristol Posts: 1,466	Ok, well I've used the focus test sheet for a comparison of my four lenses (I appologise now for the size of these crops): 25-105 at 63mm and f11 50mm prime at f11 Kit lens at 55mm and f11 Sigma at 168mm and f11 This one is the 28-105 at f4.5 and shows it front focussing. Very weird as it corrects this as you narrow the apperture! __________________ Canon 350D Canon 18-55 kit lens Canon 28-105 f3.5-4.5 USM Canon 50 1.8 Mk 1 Sigma 70-300 APO Macro DG Kenko extension tubes My photographs