Nice image, Matt. Still some pleasing detail there.
After a few tries with the astrodon's now, are you glad you purchased? Or do you really need to wait for a night of good seeing to draw any conclusions?
Anthony has been getting some great images in the past few weeks so i'm pretty sure he's very happy with them.
Regarding the Astrodons - I'm still waiting for a night of really good seeing, but I will say this at this stage: they produce a very pleasing result from a colour standpoint.
My Jupiters taken with them already look more natural and pleasing to the eye than those I produced using the Astronomik filters. With the latter, I had to do a fair bit of colour balancing etc to produce an image I was satisfied with.
The Astrodons seem to produce a more ToUcam-like colour quality...which is, for me, is quite a positive.
However, the Astrodons are not parfocal (at least not on the nights I've used them) and the light throughput is about the same as the Astronomiks...at least with the C9.25 working at around 8000mm fl. It might be a different story using the aperture and focal length of Anthony's scope? I wouldn't know
If we assume that equipment, conditions, operator skills, capture settings and post capture processing haven’t made a significant contribution to the difference between our Jupiter images of the same evening, both with C9.25’s, then I would suggest that the superior resolution and overall smoothness of your image illustrates quite effectively the benefits of LRGB versus one shot colour imaging?
If we assume that equipment, conditions, operator skills, capture settings and post capture processing haven’t made a significant contribution to the difference between our Jupiter images of the same evening, both with C9.25’s, then I would suggest that the superior resolution and overall smoothness of your image illustrates quite effectively the benefits of LRGB versus one shot colour imaging?
Cheers
Dennis
And I would say that on the surface of it all...that would appear a fairly sound suggestion!
However, the Astrodons are not parfocal (at least not on the nights I've used them) and the light throughput is about the same as the Astronomiks...at least with the C9.25 working at around 8000mm fl. It might be a different story using the aperture and focal length of Anthony's scope? I wouldn't know
I wouldn't be too concerned about parfocal claims. I've always had to re-adjust focus between colour channels - moreso when the object is down low or if the seeing is not "excellent".
I always take an extra 5-10 seconds between switching channels to ensure the focus is as sharp as i can get it in the limited timeframe.
I wouldn't be too concerned about parfocal claims.
I'm not.
You asked my impressions of their performance...and there they are (at this expressed early stage) and I think it's useful to let other people who might be considering a purchase, based on the advertising blurb, know these details.
However, I have made it clear in several posts that conditions have not been ideal to gauge certain parameters including this one.
Yes I am going through a bit of a astonomy lull, with the building our new house, farm work and now just beginning to build a new roll off roof observatory. Still waiting for a Losmandy Titan mount to arrive, hopefully in the next month.
Its been a lot of descission making, travelling, not to mention spending money. I will be glad when 2009 arrives and by then things should be back to normal, with plenty of time for astronomy also.
ps. also the weather for planetary imaging hasn't been ideal in the past 2 months with almost constant jetstream.
Matt.. You've done a nice job with the conditions as they were...
Up at my place I didnt experience the wind that you did.. It was a rather stunning night up my way... just enough breeze that there was no dew, very dark..
and - Finally. FINALLY the C11 saw the night sky, and caught photons !
Unfortunately by the time I got home from work Jupiter was already down to 47 degrees above the western horizon...
