Just back from the Netherlands where I picked up a set of 5 different low profile adapters for my Polarex refractors.
The idea for the design was to put modern accessories on this classic scopes. The adapters are made from high quality aluminum and black anodized.
The adapters are for the two sizes draw tubes. The small ones that fit the smaller and the Deluxe Focusers and the large ones that fit the Super Focuser on the larger Unitron scopes.
The adapters needed to be low profile because you need a lot of in travel for the modern eyepieces.
There are to adapters for the small draw tubes. One for 1.25" accessories and on for T2 cameras and diagonals.
For the large draw tubes there are 3 adapters. For the 1.25" diagonals, the 2" diagonals and T2.
If possible they are threaded for filters.
Mechanically they fit perfect. Need to test them under the dark sky.