When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
3, connected to the focusing tube and install the lens body, lens aperture can be visually on the 12 o'clock position, if position deviates, loosen three screws and turn the lens to an appropriate position, and then tighten the screw that is ok.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.