Focal length: 10mm Maximum aperture: 1:2 on axis; Minimum 1:4 through field of View Lens construction: 5 elements in 3 groups Prism system: Roof Prism Apparent field of view: 42 degrees Maximum exit pupil: 2.5mm Eye relief: 20mm with foldable eyecup for glass wear observation. Spotting scope magnification ratio: 1/10X the focal length of the lens mounted. Loupe magnification ratio: 25X when the lens mounted has 1:1 macro ratio. Focus & Zoom adjustment: By camera lens Dioptry change: -5D to +3D through camera lens focus compensation Dimensions: Straight: Length 18 x Width 8 x Height 9 cmAngled: Length 18 x Width 8 x Height 11cm Weight: Approximately 185 grams Tripod mount: Detachable tripod mount for light weight lens only
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Lens2Scope 7-20X Canon
This innovative product is a great addition to your SLR camera lens collection. Weighting only 185 grams, Lens2scope unlashes the power of camera lens and turn it into a powerful spotting scope in a single snap. With the advanced ED,APO glass or even the aspherical elements used in the modern camera lens, you can fully take advantages of the high quality optics and make the crystal sharp observation by Lens2scope. Having both quality spotting scope and camera lens in your camera bag without the redundant weight loading is now possible. When attached with the camera lens, the spotting scope optical magnification ratio is the camera lens focal length divided by Lens2scope focal length of 10mm. For example, if it?s attached to the 70-200mm f/4 zoom telephoto lens, the combination is a 7-20X zoom spotting scope. The macro lens can also be used with Lens2scope as a long working distance loupe. With the 1:1 magnification macro lens, it becomes a 25X loupe with the right erected image.
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