Description

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Industar 61L/Z Lens

Description:

Serves as an interchangeable lens for the Zenit still cameras with a curtain shutter and manual aperture control, belongs to the type of universal lenses, gives good results and features a uniform distribution of resolution off centre.

Specifications:
	Focal length, mm	50
	Maximum aperture	f2,8
	Angle of view, deg.	46
	Focusing range, m	0,3 – inf
	Aperture range	f2,8 to f16
	Working distance, mm	45,5
	Camera mount thread	M42 x 1
	Mount-thread for screwed-in attachements	M49 x 0,75
	Resolution at infinity distance,mm-1, min
	– in centre	44
	– off centre	30
	Light transmission factor, min	0,92
	Light diffusion factor, max	0,015
	Overall dimensions, mm	Diam. 57 x 59
	Mass, kg, max	0,225