Hi all. Slowly getting a handle on this RGB business. Bundaberg QLD. has gone from being one of the worst spots for planet imaging, to one of the best this apparition.
Thanks Mike, however apparently I'm not aligning these correctly so there is room for improvement! I'm using Astraimage MAX 2.5 (free edition) & quite frankly can't see what there is to align on! I can't see any detail out of alignment no matter how hard I look - Probably a case of staring me right in the face!
I've been a one shot colour guy for my planet imaging life
AstraImage is terrible for trying to align the colour channels.
If you can, get photoshop or similar - the easiest way I've found to see if the channels are out of alignment is to switch/blink between the greyscale colour layers (R|G|B) in photoshop.
ie: compare red to green, blink back and forth, then compare blue to green, blink back and forth.
Nice work John. Align in astra image with the white ovals. magnify the region and then do large adjustments up and down and left and right until you are satisfied that you are in the correct position. When the channels are out of position the ovals will display a faint red or blue tinge one side of each other. It is hard to spot but you can do see it with practice.
Nice work John. Align in astra image with the white ovals. magnify the region and then do large adjustments up and down and left and right until you are satisfied that you are in the correct position. When the channels are out of position the ovals will display a faint red or blue tinge one side of each other. It is hard to spot but you can do see it with practice.
Thanks Paul. When I was aligning in Astraimage, I certainly didn't see what you describe on the ovals, so therefore they must be pretty close to not worry about further then. That's a relief!
Thats a beauty John, I concur with Paul re Astra Image. I magnify the image by 3 or 4x and look at the white ovals, any misalignment is obvious at that sort of magnification. If there are no white ovals the same process also works well with festoons or other such features in the NEB.
Splendid detail your getting, how do you find focus between filters with Astronomik, I found mine not par focal with blue needing most adjustment but even my Astrodons are not perfect but better.
Mark, I'm using just the basic non goto black version of the EQ6. All it has to do is track in this game
Thanks for the verification of what Paul said, Trevor.
John, initially I thought my set of Astronomik Type II were not parfocal, but being a newbie & all - That's not true. It was the seeing (bad) that made me arrive at this conclusion. They are *very close* to parfocal in good seeing. I think the B would need a bit of a tweek, if you're pedantic like me with focus
That's a very nice image John!
Memory's not that great these days, but I think it's the best I have seen from you this time round, and at the upper end of images this apparition.