# 12 Jul, 2020 03:43
Is the TS branded "TS-Optics NEWTON Coma Corrector 1.0x GPU Superflat - 4-element - 2" connection"
same as Skywatcher /Quattro GPU coma corrector?
Looks same but the TS says it is good for full format and the skywatcher not.
# 12 Jul, 2020 05:23
|What is the best of them , please?|
# 12 Jul, 2020 07:49
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.
# 02 Aug, 2020 15:26
|They are the same, i have that Skywatcher F4 Aplanatic and it is 4-elements, same as GPU, i am sure they are all manufactured the same but then rebranded under different name.|
# 03 Aug, 2020 11:42
|TS told me that there LRGB filters is from Optolong, I dont complain👍|
# 03 Aug, 2020 12:32
MorianWho talked about LRGB filters here?
# 03 Aug, 2020 12:49
|You have no new notifications.|
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