What we like is the superb contrast, especially in the fine serpiginous dust lanes. Don't know how you do it. Sacrificing virtual sea-goats by moonlight perhaps.
Ah yes! Very nice result indeed Peter! Perfect framing and love the structure you've managed to show! Star shapes are impressively close to perfect at the edges as well.
Ah yes! Very nice result indeed Peter! Perfect framing and love the structure you've managed to show! Star shapes are impressively close to perfect at the edges as well.
Colour soon?
Ta Marcus....colour...well, yes! But about the weather
Quote:
Originally Posted by Atmos
Stars look better in your AP130, tisk tisk
Looks really good Peter, adding some RGB will be excellent! Although I can’t say I’ve ever been a big fan of this region in RGB.
Shun the non-believer. RGB will be wonderful.
Quote:
Originally Posted by Placidus
What we like is the superb contrast, especially in the fine serpiginous dust lanes. Don't know how you do it. Sacrificing virtual sea-goats by moonlight perhaps.
No. No goats... sea-worthy or otherwise
Also, I am hoping german engineering will explain the lack of goats around here.
Getting an effective f6 out of an RC design with that kind of result is another level of special. What a superb piece of optical design! What's the illumination like across the field?
cheers,
Andrew.
Always extremely impressed by the images you get from the Alluna Peter and this is no exception.
Steve
Ta Steve...your sublime ion-milled efforts have been exceptional as well
Quote:
Originally Posted by alocky
Getting an effective f6 out of an RC design with that kind of result is another level of special. What a superb piece of optical design! What's the illumination like across the field?
cheers,
Andrew.
To be sure, the reducer/corrector is not cheap. But vignetting is minimal and I'm sure the correction is perfect...but my slack-a$$ is not too interested in chasing cause of the residual error at the moment
I did seriously consider the Planewave17...a fine instrument, but vignetting was surprisingly strong, it had a larger secondary, Zerodur was not an option and the optics required ultra-terse focal plane spacing...which would have meant many expensive custom adapters.
What you see in this image was literally performance out of the box. Just attached the camera, focused, and hit go to 18x 10 minute subs.
I dunno.
It seems to be a fair bit darker in all of the 4 corners.
I don't know if it's real or not.
Did you use flat frames in the stack?
cheers
Allan
Yes.
Flats are mandatory in my neck of the woods....as per the attached sky flat...which shows: stars, dust motes, some vignetting...but hardly a tragedy
When calibrated, the h-alpha sky really is darker further from the nebula
Yes.
Flats are mandatory in my neck of the woods....as per the attached sky flat...which shows: stars, dust motes, some vignetting...but hardly a tragedy
When calibrated, the h-alpha sky really is darker further from the nebula
Fair enough Peter,
it really is darker in the corners.
Well done.
Frame edges look pretty good though (assuming they are full res(??)
Perfect framing and love the structure you've managed to show! Star shapes are impressively close to perfect at the edges as well.
