I got some to test, and I'm really not certain I'm doing things right. Using a Pentax MX, with 400 speed film, and 2 tubes (9mm and 16mm) with a SMC Pentax-M 1:1.7 50mm lens. I took a roll or so of ...

Meike is a Hong Kong-based company with global reach, specializing in the design and manufacture of cine lenses, camera lenses, lens adapters and accessories including flashguns, macro ring flash, ...