Viewing Loupe + Baseplate + Extra High Frame (1D etc.) RS-RC Accessories 55 mtr Image circle of

55 mtr Image circle of lens at f/8  90mm

as an example of use

This allows for the use of a wider aperture and slower shutter speed

open aperture of this lens in X-shutter version is reduced to f/6

Viewing Loupe + Baseplate + Extra High Frame (1D etc.) RS-RC Accessories 55 mtr Image circle of*Special Order Cannot Be Returned Key Features For Canon 1Dmk4 Series 3x Magnification Loupe Schneider Kreuznach Optics Adjustable Diopter Bracket Mounts Frame without Glue The Cambo CS 34 HDSLR Viewing Loupe 3 Set features a 3x magnification loupe, made from Schneider Kreuznach optics. An adjustable diopter allows the user to customize the loupe for their vision. The included bracket enables attachment to the camera's tripod mount, avoiding having to