Jupiter-21M lens 4/200 Russian Lens Zenit Pentax Praktica M42 mount
The Jupiter-21M lens is designed for cameras with M42x1 thread and a working distance of 45.5 mm with a jumping iris diaphragm with a shut-off mechanism. Has a built-in retractable hood. It was produced by the Krasnogorsk Mechanical Plant (KMZ) and the Vologda Optical-Mechanical Plant (VOMZ). Serial number 83023280 This lens works with most cameras via an adapter.
Focal Length: 199.78 mm Relative aperture of 1: 4 Field of view: 12 ° Frame size: 24x36 mm Front vertex focal length: -247.89 mm Back vertex focal length: 93.68 mm The distance from the first to the last surface: 89.15 mm Working distance: 45.5 mm Number of lenses / groups: 4/3 Limits the aperture scale: 1: 4--1: 22 The effective diameter of the first surface: Ø50,0 mm Light diameter of the last surface: Ø26,0 mm Connections: the lens with the camera: M42x1 or M39x1 For screwed nozzles: SpM58x0,75 To Wear tips: Ø65 mm Location mounts filters: front The resolution of the TU (center / edge): 50/36 lines / mm Transmittance: 0.82 Overall dimensions: The length of the lens caps: 165 mm The largest diameter of the rim: Ø78 mm
Lens is good used condition . The glass is clean, without damages: no elements separation, no fungus, no fog. The case is in good condition for vintage lens . Item include a 1 front cap and original box. See picture . All picture actual . Before buying please see the photo. I tried to convey through the photo all the details of the item.
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Please check my other items in my store Shipping to: Worldwide The United States, the European Union - delivery time is about 10-14 days. Other countries - Delivery time about 21 days. Delivery to Italy can take about a month, this is due to the work of the Italian customs. Delivery to Australia can also take about a month.