Pentax Camera adapter (for Pentax K-mount cameras only)

Unlike other adapters, the PF-CA35 does not use a light-robbing eyepiece to project the image from the scope to the film plane. Instead, it uses a five-lens, four-group no-eyepiece optical system for flat-field images that rival the resolution of telephoto lenses designed strictly for camera use. All air-to-glass surfaces in the adapter are fully multicoated for high light transmission and contrast. Plastic endcaps keep dust out of the optical system when the adapter is not in use.

The adapter focuses at the same point as a normal scope eyepiece. This allows you to remove the eyepiece from your scope and quickly replace it with the camera adapter without having to waste time to refocus. The adapter provides a 2° field of view with a 100mm scope, with a 30' close focus. With an 80mm scope, the field is 2.5° and the close focus is 22'. With a 65mm scope, the field is 3.2° and the close focus is 18'.