EBC Fujinon-T 135mm f3.5 brand_Fotasy Peer into the lensmount side

Peer into the lensmount side and you can see the fixed prism that directs part of the light to the AF sensors

is pretty decent

It even transmits pin-drive AF function

but it's worth it

EBC Fujinon-T 135mm f3.5 brand_Fotasy Peer into the lensmount sideEBC Fujinon T 135mm f3. 5 is a short telephoto lens for the modified M42 Fujinon mount. Its indexing tab protrudes from the rear edge of the aperture ring, so while this lens will mount to some M42 cameras and adapters, it may require modification to fit on others. Cosmetic condition is very good, with minor wear from used and handling; glass shows minor dust, no haze or fungus. Focusing and diaphragm work well.