Prime Focus Adaptor 1.25″ for Canon EOS DSLR, The adapter has a thread for standard 1.25″ filters. It is fully aluminium and anodized black.
T-Adapter and EOS T-Ring for prime focus photography with your telescope. The adapter fits into any 1.25 inches eyepiece socket and you can attach directly your Canon EOS DSLR camera.
Which telescopes you can use with your DSLR and this adapter: each Refractor with 1.25″, each Cassegrain, Schmidt Cassegrain or Maksutov
1.25″ Filter Thread You can screw 1.25″ filters or other parts using the 1.25″ filter thread (M28.5×0.6) into the FA 1 adaptor. This allows you to use nebular filters or city-light reduction filters for imaging.