dodgerroger
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Everything posted by dodgerroger
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Anyone in East Yorkshire or Hull?
dodgerroger replied to PatrickO's topic in Getting Started General Help and Advice
HU11 that’s my postcode 😃 -
Yeah phd 2. Thanks, I’ve been imaging for 3 years and never fully understood which number to take notice of.
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Ah thanks, yes it has the correct focal length and guide camera pixel size. Another daft question but which numbers do you go by, the number in brackets or the first number?
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I moved to Nina from apt before the latter had the autofocus capability. I won’t go back now it is excellent. I am still using version 1.10 as I found the nightly builds a bug fest.
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Hi folks, I’m sure this is a simple question for many people. How do I convert total rms error from my phd graph to meaningful error in arc seconds? Thus allowing me to compare it to the imaging cam imaging scale. Thank you
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Strange bahtinov mask pattern
dodgerroger replied to Mushroomrice's topic in Getting Started With Imaging
I don’t think so, I started with a 72ED with the same camera and have progressed to a GT71. It was still the same. I thought it might be over saturation and or the high pixel count that is causing it. I found it annoying as it is very difficult to determine correct focus -
Strange bahtinov mask pattern
dodgerroger replied to Mushroomrice's topic in Getting Started With Imaging
If I recall, the spikes looked straight when checked with my nb filters but with rgb filters the spikes would look wonky. -
Strange bahtinov mask pattern
dodgerroger replied to Mushroomrice's topic in Getting Started With Imaging
I had the exact same issue with my 183mm although it is a Altair camera. I never got to the bottom of it and now use an electronic focuser. -
DarkFrames Mount servicing - is he ill?
dodgerroger replied to Steve Davies's topic in The Astro Lounge
He has had my mount for 15 weeks now. Emails rarely answered, managed to speak with him 3 weeks ago and was told my mount was ready and just needed testing. I sent an email a couple of days ago asking for an update and no reply. Why advertise 4/5 turn around when he must know this won’t happen. I’ll be ringing tomorrow and if I don’t get answer I’ll be requesting a refund. I hope his work is better than the customer service. -
New CMOS optimised Baader Ultra-Narrowband filters
dodgerroger replied to cfinn's topic in Imaging - Discussion
your Sii data looks very good. What is the outcome with the scratches? -
New CMOS optimised Baader Ultra-Narrowband filters
dodgerroger replied to cfinn's topic in Imaging - Discussion
😲very poor quality control from Baader. -
New CMOS optimised Baader Ultra-Narrowband filters
dodgerroger replied to cfinn's topic in Imaging - Discussion
Look forward to the results. How long are your exposures and setup? -
New CMOS optimised Baader Ultra-Narrowband filters
dodgerroger replied to cfinn's topic in Imaging - Discussion
Thanks I am about to purchase a new Oiii filter, my current cheap filter gives huge halos. I can’t decide between the 3.5 or the 6. -
New CMOS optimised Baader Ultra-Narrowband filters
dodgerroger replied to cfinn's topic in Imaging - Discussion
Which filter is this? -
Hi folks, I see there is a lot of discussion on here regarding different manufactures of filter but my question is are the new 3.5 nm filters worth the extra £££££ over the cheaper 6nm filters? I am looking to upgrade my cheap Oiii filter which is giving very bad halos. Thanks
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I was just checking my images, it’s the first time I’ve used fits lib and thought oh why is it showing clipped pixels. I was looking at the linear histogram and thinking the offset is set to low. It has come about from trying different exposures and gains and want to make sure I have enough offset when I start changing gain values
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Thanks for that, it is a raw image. I will check the associated dark subs I have taken. What should the background level be set to? I think fit lib is on default settings
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Not sure how they would handle been outside with dew etc.
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There is plenty to choose from I am currently imaging the spider nebula IC417. Well not this week as I have a week of clouds forecast
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Hi folks, please help. I am experimenting with fits liberator to find the correct offset for my camera. This is a screen shot of an image using the default gain and offset. The blue dots as i understand it are showing the clipped black pixels.So am i correct in thinking I need a higher offset? I believe i do especially when looking at the histogram. Could someone with experience of this confirm. Thanks in advance
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Last year I upgraded from dslr to a dedicated camera. After a lot of head scratching I went to mono, namely a 183mm. It has brought my imaging on in great leaps although I am still learning. One of my iterating habits with my dslr was image hopping. I would end up with loads of different targets on my pc with little data on each target and not a great deal to show for it. Mono has forced me to pick a target and stick with it over several nights to collect a good amount of data, which in turn I now spend more time processing that one image. I bought some narrowband filters as well which has been great fun
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Yes I think they can give bloated stars, what make of filter are you using?
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Pixinsight Image Calibration
dodgerroger replied to Buzzard75's topic in Imaging - Image Processing, Help and Techniques
I can’t really comment on suggestions to the above as I am a mere beginner with pixinsight but have you tried stacking your images in a different program, APP or DSS. See if you get the same results. This will narrow it down to your issue -
There are many like it but this is my Elephant trunk, looks more like a ghostly figure to me though. Shot with AA183MM, SW72ED and processed in pixinsight. Please feel free to give me any pointers for improving this image, all greatly received.
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Cracking image, very nice