Vivitar AV-1025, Instruction Manual

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Your 500mm preset lens is flly automatic and incorporates not only computerized optical design but also the
latest in optical multi-coating techniques. The process of multi-coating assures virtually flare free
photographs even under adverse lighting conditions resulting in crisp, high contrast pictures. Preset lenses
are designed to retain a full range of exposure, automation and metering capabilities of the camera on which
they are mounted.
MOUNTING THE LENS
Your preset lens utilizes a universal mounting ring (t-mount) which allows your lens to fit practically all SLR
cameras manufactured since 1960. Simply attach the specific t-mount for your model camera to the preset
lens and then mount it to the body of your camera in the same way as you would with the lens included with
your camera. After mounting your t-mount lens adapter to the lens, you may have to adjust the t-mounts so
that the top of the lens faces upwards. If this is necessary, loosen the three screws so that you can make the
needed adjustments. Remember to retighten them after you have made your adjustments.