View Full Version : just ordered 70-300 mm but ?

22nd September 2008, 07:10 PM
does anyone know if this lens has a mf/af switch on the lens as i have been told it might have and if so why as I thought this was controlled by the menu system ? Regards Iain

22nd September 2008, 07:16 PM
Hi, Yes the lens does have a AF/MF switch. It does make it so much quicker if you want to change to MF. Not sure the reason this lens has been fitted with the switch.

Derek C

22nd September 2008, 08:02 PM
I gather the switch is because it is Oly glass with Sigma build.
I leave mine on auto on the lens and set the camera to manual focus with the AFL button as a one push focus
Yes occasionally the focus goes out and the lens close focuses but the little finger on the left hand sorts that ... give it a week of trying it out on everything and I think you will grow to love it...

22nd September 2008, 08:31 PM
It's a great lens and the MF is so useful if the AF is haveing trouble finding focus (on water, etc)

Have fun.


22nd September 2008, 08:52 PM
Thanks all that explains it .I'll do as normal then mess about with it and find out what suits me .Cheers Iain