This Astro-Tech 2” prime focus adapter allows unvignetted prime focus photography with most 35mm and DSLR cameras having removable lenses that use a standard T-ring to connect to a camera adapter. It also can be used with most CCD cameras having a removable nosepiece that can be unthreaded to expose a female T-thread. It will not work with digital cameras having integral non-removable zoom lenses.
The adapter can be used with most refractors and Newtonian reflectors that are equipped with a 2” focuser, as well as with Astro-Tech Ritchey-Chrétien reflectors.
The camera end of the Astro-Tech adapter is equipped with a standard 42mm male T-thread for connection to a T-ring or the female T-thread on a CCD camera body. The barrel on the opposite end slips into a 2” focuser and is threaded to accept 48mm filters. The adapter is machined of aluminum, anodized black. The interior of the adapter has anti-reflection threading along its entire length
The prime focus adapter barrel extends 35mm into the focuser drawtube to provide a secure tilt-free installation when the focuser thumbscrew is firmly tightened. This keeps the adapter perpendicular to the focal plane for accurate focus over entire negative or CCD chip. This adapter adds only 3mm of extension to the light path when the adapter is seated firmly into your focuser. The overall length of the adapter is 38mm, excluding the 4mm of threads for attaching a T-ring..
This Astro-Tech Prime focus adapter needs an optional T-ring if it is not threaded directly into the T-threads of a CCD camera body.
We haven't recommended any accessories for this product quite yet... check back soon or call one of our experts (1-405-364-0858).
This product does not have supplied accessories... or supplied accessories have not been assigned.