CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
Hi
I don't normally do galaxies especially the smaller ones as I use a short focal length and large chip sensor and because of light pollution but occasionally when the conditions are right and there are no narrow band targets I will have a go at some LRGB. I've always wanted to have a go at this subject and with the system that I am currently using having the optimum field I thought I'd give it a go. This was taken with the Televue NP127is/FLI system that I've been testing on my Paramount ME auto guided by an Officine Stellare and Lodestar and it consists of 30x10 minutes luminance and 12x10 minutes each of RGB, it was taken over a period of several weeks due to weather, moon and work but I think the end result was worth it. I haven't inserted an image as I don't feel the small size portrays the field properly so I have inserted a link to the full size image below. My only regret is that I could have framed it a bit better to include the two nice galaxies in the top left of the image instead of cutting them in half, oh well, next time round maybe.
Thanks for looking
Best wishes
Gordon
Using Sony A7Sii & A7iii, Samyang 12mm f2.8, 24mm f1.4 & 85mm f1.4 lenses, Dynamic Perceptions Stage 1 slider & Sapphire Pro, Timelapse +view intervalometer. Please visit my website https://www.inthestillofthenight.space for more info
Very nice. love to learn from you. Hm....its tempting me to get hand onto galaxy.... here LP and weather not permitting to do well in LRGB. how do you get 10min subs in RGB? I tried before, only one min is the highest I can go with f5.
Any filter for galaxy?
kimo wrote:Very nice. love to learn from you. Hm....its tempting me to get hand onto galaxy.... here LP and weather not permitting to do well in LRGB. how do you get 10min subs in RGB? I tried before, only one min is the highest I can go with f5.
Any filter for galaxy?
Thanks
Kimo
Hi Kimo
10 minutes is possible for LRGB even at F5 with light pollution as long you choose your subject carefully, ie as high in the sky as possible, good calibration and be prepared to deal with gradients. I don't use any special filters other than LRGB
Best wishes
Gordon
Using Sony A7Sii & A7iii, Samyang 12mm f2.8, 24mm f1.4 & 85mm f1.4 lenses, Dynamic Perceptions Stage 1 slider & Sapphire Pro, Timelapse +view intervalometer. Please visit my website https://www.inthestillofthenight.space for more info
"The importance of a telescope is not how big it is, how well made it is.
It is how many people, less fortunate than you, got to look through it."
-- John Dobson.
Super nice ! Gorden, btw, may i ask for some advice, what should i do in order to remove gradient caused by light pollution from my photo, for eg. the M83 shot, which was badly affected ?
PETER LOO wrote:Super nice ! Gorden, btw, may i ask for some advice, what should i do in order to remove gradient caused by light pollution from my photo, for eg. the M83 shot, which was badly affected ?
Hi
I use "Gradient Xterminator" which can be obtained for a small fee from www.rc-astro.com this has instructions on its use on the website and is very easy and efficient to use
Best wishes
Gordon
Using Sony A7Sii & A7iii, Samyang 12mm f2.8, 24mm f1.4 & 85mm f1.4 lenses, Dynamic Perceptions Stage 1 slider & Sapphire Pro, Timelapse +view intervalometer. Please visit my website https://www.inthestillofthenight.space for more info
