Century Precision Optics WA-7X5X with FA-7X80 brand_Daiwa The Pentacon Auto 50mm f1

The Pentacon Auto 50mm f1

so don't buy it

though only at 15fps

though light

but it doesn't have a true optical rangefinder

Century Precision Optics WA-7X5X with FA-7X80 brand_Daiwa The Pentacon Auto 50mm f1The Century Precision Optics WA 7X5X is a pair of nested wide angle adapters that attach to the front of a lens. With the 0. 7x on the lens, and the 0. 5x on top, the focal length is effectively halved; you can also use the 0. 7x without the 0. 5x if you need a more subtle effect. While the 0. 7x optic itself has an uncommon 96mm thread, the included FA 7X80 adapter allows the system to be clamped to lenses with an 80mm outside diameter (eg, many 77mm