Today I’ll take a look at the cheapest 135mm lens I could find: The Auto Danubia Compact 135mm f/2.8. Let’s see if it is worth considering if you are on a budget. Build The lens is made of all metal and glass, except for the rubber focus ring appears to be disconnected from the body.… Continue reading Auto Danubia Compact 135mm f/2.8 M42 Lens Review