Nov 19, 2019 · Sigma 105mm EX DG Macro - anyone know how to update the firmware and where can I get a copy of the firmware ?
Personally, I've encountered auto focus problems with my Sigma AF105mm macro lens ever since I've had it. I find that sometimes AF is completely redundant in ...
how to service the Sigma 90mm f/2.8 Macro for Minolta AF. Sigma lens 90/2.8 AF 1:2 macro Minolta. How can I this lens demountable for repair.
Feb 6, 2011 · Tamron / Sigma 70-300 Macro mode hack. Please refer to my youtube ... How to Modify / Jailbreak your Tamron / Sigma 70-300mm Macro lens.
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