Spotting Scopes

Archive for the ‘Alpen Spotting Scopes’ Category

Alpen’s compact digital camera adapter for spotting scopes is a great way to take digital photos when using your Alpen spotting scope. You just attach the adapter to your tripod and then attach your compact digital camera and spotting scope to the adapter. After adjusting the adapter to your specific compact digital camera, you can then take great photos of wildlife and objects quickly and easily. You can view through your spotting scope normally and then with the unique swin (more…)

This Alpen 20-60×80 zoom spotting scope is fully waterproof and fogproof and features a whopping 80mm diameter objective lens for the brightest image. The zoom magnification provide nice field of view at 20x and super close up viewing at 60x. The retractable sun shade helps reduce glare and the BAK4 multi-coated optics deliver a bright crisp image. The 45 degree eye piece design can be adjusted to any viewing position by simply loosening the adjustment collar on the center of (more…)

Alpen Optical company has come up with a universal Digiscope setup. This is the adapter you can use to take pictures through any scope. You can take close up pictures just like those nature photographers who spent thousands and you only spent hundreds. Enjoy!

Alpen’s new Digital Camera Adapter for spotting scopes is an inexpensive way to take close up photos by using your spotting scope as a telephoto lens. Works with straight and 45 degree eyepiece spotting scopes.

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A zoom lens is a mechanical assembly of lens elements with the ability to vary its focal length (and thus angle of view), as opposed to a fixed focal length (FFL) lens (see prime lens). They are commonly used with still, video, motion picture cameras, projectors, some binoculars, microscopes, telescopes, telescopic sights, and other optical instruments.
A true zoom lens, also called a parfocal lens, is one that maintains focus when its focal length changes. A lens that loses focus during zooming is more properly called a varifocal lens.

Zoom lenses are often described by the ratio of their longest to shortest focal lengths. For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 41 or “4×” zoom. The term superzoom or hyperzoom is used to describe photographic zoom lenses with very large focal length factors, typically more than 4× and ranging up to 15× in SLR camera lenses and 26× in amateur digital cameras. This ratio can be as high as 100× in professional television cameras.[1] As of 2009, there are no photographic zoom lenses beyond about 3× with imaging quality on par with prime lenses, and constant fast aperture zooms (usually f/2.8 or f/2.0) are typically restricted to this zoom range. Quality degradation is less perceptible when recording moving images at low resolution, which is why professional video and TV lenses are able to feature high zoom ratios. Digital photography can also accommodate algorithms that compensate for optical flaws, both within in-camera processors and post-production software.

Photographic zoom lenses should not be confused with telephoto lenses, those with a narrow angle of view. Some zoom lenses are telephoto, some are wide-angle, and others cover a range from wide-angle to telephoto. Lenses in the latter group of zoom lenses, sometimes referred to as “normal” zooms, have displaced the fixed focal length lens as the popular one-lens selection on many contemporary cameras.

Below is an example of the different zoom arranges available

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