The reducer was not designed to be used with the TCA-4. The TCA-4 was designed to be used at prime focus.
The purpose of the TCA-4 was to produce highly magnified images for imaging. Using a reducer with the TCA-4 defeats the purpose of the TCA-4.
If you want a smaller images used a longer focal length ocular like the LE-30.
Art Ciampi
The purpose of the TCA-4 was to produce highly magnified images for imaging. Using a reducer with the TCA-4 defeats the purpose of the TCA-4.
If you want a smaller images used a longer focal length ocular like the LE-30.
Art Ciampi
