€150

Price drop.

This is Coma Corrector for fast Newtonians.
Glass elements are in pristine condition, ready to go straight into the focuser of your telescope.
Barrel has some tiny and expected marks from typical use but nothing major. Overall this item is in excellent condition.

Details of this glass are available here: https://www.teleskop-express.de/en/astrophotography-and-photography-15/imaging-correctors-for-telescopes-138/ts-optics-newtonian-coma-corrector-0-95x-maxfield-3-element-2-connection-3822

I've got very good (photographic) results using this device.
I'm reducing my collection of astro gear hence this sale.