Wanted to try to boost the FL of my 10" f/5 Newt up, so I tried a 1.5x Telecentric barlow...worked like a champ! With the SXV-H9, I'm getting about .69 arcsec/pixel at 1900mm fl...about as high as my seeing would ever allow.
Tried it with M27 narrowband to see if I could get reasonable images through narrowband filters at the slower f/ratio...
For full res and details (as well as Ha and OIII B&W images), go to my webpage:
http://www.ricksastro.com/DSOs/m27HaOiii.shtml
Tried it with M27 narrowband to see if I could get reasonable images through narrowband filters at the slower f/ratio...
For full res and details (as well as Ha and OIII B&W images), go to my webpage:
http://www.ricksastro.com/DSOs/m27HaOiii.shtml
Attached Image: