Quote:
Originally Posted by Saturnine
Hi Arnold, welcome to the forums and astronomy. There is no need to worry about the coma at the edges of the frame, it can be reduced even eliminated completely by adding a field flattener, coma corrector to the set up. There are several makes readily available via retailers, like this -
https://www.ebay.com.au/itm/204315219061 https://www.bintel.com.au/product/orion-field-flattener.
and may pop up in the classifieds here now and then or just do a search for field flatteners via your browsers. There is plenty of info out there on how to set them up, spacing etc. |
Thanks heaps for that! I just looked through the gear that the setup came with and i found an orion 0.8 Focal reducer....i assume that will help with feild flattening as well?