Question about Sigma Zoom Tele 135-400mm f/4.5-5.6 APO Asphrical Auto Focus Lens
I recently purchased a 'sigma auto focus 1:3.5-4.5' from ebay. the lens works perfectly but the switch between manual and automatic focus won't budge from AF to M. is there a button or something to make the switch move or is it busted?
Hi The switch is held on by two screws you can remove the screws and the switch will fall off it will need cleaning
Posted on Dec 13, 2008
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