TSGPU coma corrector is same as Skywatcher quattro?

Andre Moutinho:
Hi,Is the TS branded "TS-Optics NEWTON Coma Corrector 1.0x GPU Superflat - 4-element - 2" connection"
https://www.teleskop-express.de/shop/product_info.php/info/p6706_TS-Optics-NEWTON-Coma-Corrector-1-0x-GPU-Superflat---4-element---2--connection.html

same as Skywatcher /Quattro GPU coma corrector?
https://www.highpointscientific.com/skywatcher-coma-corrector-for-quattro-imaging-newtonians-s20204
Looks same but the TS says it is good for full format and the skywatcher not.

Thanks
Andre

Hi André,

I have the TS optics-GPU one. It is really good. TS optics sold another GPU non-TS that was almost the same, without the ring though. I don't know if the Skywatcher is identical (it is not specified on their site if it also has 4 elements, that's important). Both are not optimal for full frame they are 2''. For full frame you need 3'' to decrease vignetting but that requires changing everything sometimes from the tube (or drilling a 3'' hole), focuser, filters... I would go with the TS.

Best regards,

Bogdan

TS told me that there LRGB filters is from Optolong, I dont complain👍