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Coma corrector advise for Skywatcher Explorer 200P
Pryce replied to msacco's topic in Getting Started With Imaging
Could what you read previously be about one of the older(or non MPCC versions) ? I'm assuming there's older and other versions since this one is called Multi purpose MK III. That could make sense ๐ -
Coma corrector advise for Skywatcher Explorer 200P
Pryce replied to msacco's topic in Getting Started With Imaging
I have the Baader one my self and I've not had any issues in testing. I never read anything bad about it before I purchased it and it also has stellar reviews on FLO. Though he Aplanatic one should be better, but that's also reflected in the price. Since you don't already have a CC I'm assuming you're relatively new to imaging(at least with the reflector) and in that case I don't think you'll notice the slighly lesser quality of the baader or the 0.9x compared to the aplanatic. Though I've never compared the three, so I can't say for sure. But here's what I found in my research: Here's a search for the baader on astrobin. A lot of good result using setups similar to yours https://www.astrobin.com/search/?q=Baader MPCC Mk III And here with the f4 Aplanatic https://www.astrobin.com/search/?q=SkyWatcher Aplanatic Coma Corrector And the SW 0.9x https://www.astrobin.com/search/?q=Skywatcher 0.9x coma corector If you zoom into the corners, you can see a slight difference in the coma, but I was looking for it, so I couldn't say if someone would notice the difference if they weren't specifically looking for it. But if you can afford it, the Aplanatic would seem like the better option Here's the google definition of Aplanatic: "An aplanatic lens is a lens that is free of both spherical and coma aberrations. Aplanatic lenses can be made by combining two or three lens elements." In other words, the optical quality is just better. But to sum up: The Baader and 0.9x is fine if you're just starting out, but if you can afford the Aplanatic, go for it! -
It is greentinted indeed! Corrected here! I wasn't able to draw it down anymore without drawing out a lot of noise in the red or just a hellish blue. But it does look a lot better now!
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Edited and updated with a new version. Just some small tweaks after feedback.
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Here's my result on the heart nebula over 3 sessions with a total integration of 18h 8m Stacking information: Equipment: Sky-Watcher Evostar 72ED EOS 600D Full spectrum mod Optolong L-eNhance EQ6-R Pro Guided (ZWO 60mm guidescope / ASI120MM mini) Stacked in DSS and processed in Photoshop & Topaz Denoise I wasn't exactly sure how to process this, as the images I found on google was all over the place, so I had to go with my gut to get a result I found pleasing. I did get some elongated stars in my corners this time around(for the most part cropped out) and I'm not entirely sure why, so I'll have to problemsolve a little bit there. But here we go, my 4th astrophoto. Comments and concerns welcomed!
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Bortle class 5 ..so where next
Pryce replied to shropshire lad's topic in Getting Started With Imaging
I'm working my way around polaris atthe moment! Just finished a session on IC 1805(heart nebula). Then theres the Soul nebula, Elephants trunk, packman and many many more! There are some really cool targets to the north๐ They're also very forgiving to me as a beginner when it comes to processing. But I have a EQ6-R Pro mount, so I don't know how these targets will turn out with the (likely) short exposures you're limited to. But they're worth a shot! -
Stacking data taken from different locations
Pryce replied to Pryce's topic in Getting Started With Imaging
I tried stacking in intersection mode, and that cropped it this far in. Just a quick and dirty edit to see what I had to work with. Well, I guess I'll just store the data from my first location for later. I have 3 more clear nights(hopefully) at the location I'm currently at, so it's not the end of the world! I'll see what I have in 2-3 days! ๐ Two sessions and only 55 minutes of data? : o But it looks good though! Especially for less than an hour of data! -
Stacking data taken from different locations
Pryce replied to Pryce's topic in Getting Started With Imaging
DSS did NOT like that. I had to go through all the frames to see if I had a rogue one. Last nights session and the day before are both roughly centered on the heart of the heart. I don't quite understand the tilt that I'm seeing here -
This might sound stupid and I'm pretty sure it would be fine. But I'm imaging from one location tonight and from somewhere else this weekend. So I'm wondering if it's fine to stack this data or if I'll run into any problems?
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I use the L-eNhance with my 600D and that works perfectly fine. Even when focusing or framing. I have read that using the L-eXtreme with modified DSLR may have some issues with focus or framing. Though its probably a good filter if you can overcome those issues.
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Great! Thanks for your input! Then I'll try to find a material that evenly diffuses the panel and I'll give it a shot!
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Hey guys, so I ordered a led tracing board to take my flats, as I havent done that yet. But when it arrived today I noticed that it has a dotted field and not a "flat" field. Will this matter when I'm taking my flats? I put a piece of paper on it to show its effect when diffused, but I'm still a bit unsure. Obviously thats low quality copy paper. So plain white fabric would probably be better.
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Yeah exactly, I've found these as well. Oh well, it's a fairly small investment to test out before switching to 2" entirely. Might as well give it a go
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Bump. Haven't really found any information about this anywhere