NIKON M 300mm 1:9 鏡頭

Specifications

52mm filter thread.

Four elements, three groups (Zeiss Tessar)

Copal #1 shutter, T, B, 1 - 1/400.

Seven blade diaphragm stops down to a unnecessarily small f/128

57 degrees coverage.

325 mm image circle, enough coverage for 8 x 10!"

Rear cell outside diameter: 42.05mm.

Rear element clear diameter 31.0mm.

10 oz. or 290g

※無盒