Hi guys. I'm near to pull the trigger on a new wide field OTA for nebulae season to use with my trustrd ASI 1600 mm and Antlia filters. Targets will be mainly dark and reflection nebulas with some NB in between. I already decided for the Fra 400 with reducer, but the last Dark Rangers video on youtube mixed the cards again. He let me notice that askar does not declare wich ED glass uses on the Fra scopes. So I'm looking around again. A lot of people here on AB enjoy the FRA, the 300 and the 400. But someone experienced also bad chromatic aberrations.
The keyword are: pretty light weight (i'll use it on its own for the next season, but in future I'm planning to install it on a 10" newt as second rig), focal length around 280-300mm, pretty fast (i'm in doubt about the fra 300 for that reason) and with a good quality focuser (it will be installed on a 10micron mount and run unguided so flexure are not welcome). Budget around 1500-euros, the same price tag of the FRA 400 + reducer. Any suggestion?
The keyword are: pretty light weight (i'll use it on its own for the next season, but in future I'm planning to install it on a 10" newt as second rig), focal length around 280-300mm, pretty fast (i'm in doubt about the fra 300 for that reason) and with a good quality focuser (it will be installed on a 10micron mount and run unguided so flexure are not welcome). Budget around 1500-euros, the same price tag of the FRA 400 + reducer. Any suggestion?