TS Optics 0.8x full-frame corrector for f/8 RC telescopes with M68x1 connection

This reducer offers a complete correction of the image field of RC telescopes with reduction of the focal length to 80% at the same time. Pure focal reducers reduce the focal length without correcting the image field. The result is an aberration (astigmatism) in the corners. The larger the sensor, the more pronounced the aberration.

Adaption to the telescope

You have two possibilities of adapting to the RC telescope. You can thread the corrector to the focuser or countersink it into the drawtube if you have less than 135 mm working distance.
Adaption via the female M68x1 thread at the telescope side
Via suitable adapters, you can attach the corrector to any focusers from 2.5" upwards. You just have to provide the focuser with a male M68x1 thread at the camera side. Please note that you need at least 135 mm working distance from the male thread.
Adaption with countersinking the corrector into the drawtube at the same time
If there is less backfocus, we recommend countersinking the corrector into the drawtube. Thus the necessary backfocus is reduced to less than 100 mm. There are suitable adapters for example the adapter TSO-M78a-M68a for focusers with the female M78x1 .

The working distance from the male M68x1 thread at the camera side is 82 mm, thus you have enough space for individual adaptions or accessories like off-axis guiders. The male thread is not taken into account for the working distance, as it disappears into the connection adapter.

Delivery contents

• 0.8x reducer and corrector for RC
• M68 dustcaps, made of metal, for both sides