I am looking to get a relatively small and light refractor to complement widefield imaging.
Weight around 5-6kgs or less.
I have found these to be interesting although not a lot about them:
1. TS Optics 86mm F5.8 petzval. 60mm imaging circle:
https://www.teleskop-express.de/shop...field-APO.html
60mm is big enough for even a Proline 16803.
2. William Optics GT81 with reducer:
https://williamoptics.com/products/t...ran-turismo-81
reducer and flattener available with up to full frame corrected circle (a fraction less).
3. Astrotech AT 92mm F5.5 triplet:
https://www.astronomics.com/astro-te...actor-ota.html
This last does not seem to offer a flattener or reducer nor give any spec about the imaging circle or what the ED element is (therefore probably FPL51 which is quite a bit inferior to FPL53).
Any thoughts or suggestions of other scopes?
Greg.