Thalestris24

Hi I had similar concerns however I just think it's a characteristic of the mount. If it slews quite happily and tracks and guides ok then maybe just leave well alone and be happy. Louise

Hi Adam In principal you can but it's not very practical I'm afraid. They are really for use with monochrome ccd's with filter wheels. You might be able to attach one filter at a time but that would be very fiddly. Even then you'd really need dark skies as you'd require long exposures - the narrowband filters seriously cut the amount of light reaching the sensor. Um, as this is a pinned topic you may not get more replies as members don't tend to scour them for new posts. Better to create a new topic Louise

Hmm... a bino microscope would be much better, I'm sure!

Hi Gina Something like this might be handy! http://www.amazon.co.uk/Bresser-Microscope-5802000-Biolux-ICD/dp/B0017J7NW6/ref=sr_1_2?ie=UTF8&qid=1400262882&sr=8-2&keywords=binocular+microscope Dunno how you manage without a microscope! Must be very hard to see detail! Louise

Hmm.. it's a bit like a politician or a salesman telling people what they want to hear... For not much more than the price of a 60da you can buy a ccd with a higher QE. If the 60da was a mono with microlenses it might be worth it! Louise

Maybe not - they probably have a very integrated production line. Of course, there wouldn't be a mass demand for them anyway. Oh well. Louise

Hi Yeah - one day! I really don't have time to do anything much with it at the moment. It will almost certainly have imperfections though. It's a darn shame Canon don't produce some of them without CFAs in the first place! Louise

Hi guys Got my debayered 1100d today - have posted a quick daytime comparison in the 'cameras' section if anyone is interested. Cheers Louise

Awesome! I've yet to even image a galaxy at all so have to hand it to you. 41 hours - that's true dedication! Thanks for sharing it with us. Louise

600 is for the uncooled mono 1100d - I don't think it's changed recently. I decided the cooled version was too expensive for me!

Hi Well they are a business so have to allow for losses plus they work on new cameras so higher risk. They are short staffed too at the moment. I suppose 600 Euros isn't exorbitant for the amount of work involved. They don't guarantee perfect sensors so there will be imperfections. Hopefully flats will hide them Louise

Thanks - it's taken them an awful long time! I hope it's not too long before they actually ship it. Patience is a virtue... I believe they do a lot of their method under a (presumably low-power) microscope and in a flow cabinet. I imagine they use a hot air gun rather than a butane torch - the flame temperature must be potentially rather high! Good luck Louise

Hi Gina Not sure if anything on the JTW debayering tutorial might help or suggest a way forward: http://www.jtwastronomy.com/tutorials/debayer.html They informed me a few days ago that they've successfully debayered the 1100d I ordered Cheers Louise

It's defo a high risk endeavour which is why I paid someone else to do it for me! Whether the mono 1100d is actually worth the cost remains to be seen! Good luck again Louise

Hi Gina Just to be sure - have you tried resetting the camera settings? Being cmos, the sensors are likely to be static sensitive so easily damaged that way - a possibility, maybe.. Louise

I wouldn't give up on it yet - there could be several reasons for the error. Maybe this might help: http://www.magiclantern.fm/forum/index.php?topic=4105.0 Edit: oh ignore that, it's for Magic Lantern... Sorry. I noticed you've posted here with error 70 before, Gina! Louise

Rather you than me! Good luck Louise

Oh ok Thanks Louise

Hi Interesting piece of software. Was wondering which version you have? Can it be used like ccdinspector? Cheers Louise

Thinking about it, it's only the sensitivity of individual pixels that count for the debayered sensor. Unless you 'bin' 4 x 4 (by some means) which would defeat the object of gaining resolution. So, on that basis, a debayered sensor could need up to twice the integration time... I suppose much will depend on the arc secs/pixel that one is imaging at as well as the particular target. Oh my, it's getting late and my brain has had enough! Louise

Well, it's certainly the case that the microlenses are only part of the picture (sic). Removing the CFA helps to make up for the microlense losses but this might result in a loss of contrast? It would be good if sensors had a flat response across the visible spectrum but they don't. Maybe something can be gained/compensated in processing? Maybe a custom software debayering might be useful? I'm just thinking aloud Cheers Louise

Hiya True, but for a daytime scene it can be an indoor still life or something A long exposure night time view would be trickier but a widefield sky view probably won't change much. At the end of the day, I'm only looking to see roughly how different the responses might be. Say I do a 2 minute exposure with both cameras but find the mono is a bit fainter but can get a similar result to the colour camera by exposing for an extra 20s. That will be good enough for me. I don't much care about gathering precise data, I only want to see if the mono camera is still useable, really. Cheers Louise

Ah, yes, you must be right as it's absolute QE. For my own interest, I was thinking of just doing a simple, subjective comparison. Two different cameras but with the same lens and same scene and with same manual exposure and ISO. It's surely the result that counts . I don't have any narrowband filters at the mo. I thought I'd do some short daytime exposures and some long astro exposures. I could simply desaturate the colour images and just compare side by side. I'll think about that a bit and I don't have the debayered camera yet. Hopefully it won't be much longer! Cheers Louise Edit: of course, it will be cloudy when I get it!

Hi again Yeah, that's what I was thinking. Makes it hard to do 'before' and 'after' comparisons. Also, the green region in colour sensor graphs are the response of two pixels rather than just one - Oh, I think someone's already said that! I think if the debayered version performs reasonably well then that's what you'd hope for and can be happy Cheers Louise

Hi If I'm reading that right, when using the original sensor with say light via Sii, which is just a narrow band of red light, then the responses from G, G2 and B pixels are really colour 'noise' since ideally you'd want the G, G2 and B pixels to be 0? Cheers Louise