Vivitar V-800MR Required T-Mount, Mounting Your Lens to Your Camera, Focusing the Lens

Your new Catadioptric or Re￿ex mirror lens is a highly developed, computer designed product which uses the merits of both re￿ex optics and refraction optics. This gives you very sharp picture quality with less color aberration, which is considered the most harmful factor in the ￿eld of telephoto photography.

1. Required T-Mount

A proper T-Mount adapter should be threaded onto the back of your lens in order to attach your lens to your camera.

2. Mounting Your Lens to Your Camera

The T-Mount is similar in design to the mount of standard lenses designed for your camera, and is coupled and removed in the same manner. To mount the lens, attach the T-mount adapter to your camera and then simply attach the lens to the adapter.

3. Focusing the Lens

Focusing is accomplished while viewing the subject through the view￿nder of your camera and rotating the focusing ring. Since the aperture is preset, you will ￿nd under certain light conditions a shadow appearance on the split-image section of your focusing screen. In this case, simply focus on the edges of your subject with the outer center of your prism.

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