R19 II 說明書 http://en.leica-camera.com/asset ... ename=file_1896.pdf
Focal length: 19.4 mm
Focusing range: 0.3 m to Infinity
Highest reproduction ratio: 1:11
Smallest aperture: 22
Built-in turret with 4 filters: NDx1 (neutral density), yellow-green YG, orange OR,
and blue (conversion filter KB12)
Length: 60 mm
Largest diameter: 71 mm
Weight: approx. 560 g