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I went to compare all ZWO's mono planetary cameras; this one had the largest pixel size (9µm) and decent specifications; I thought it could actually be used for DSOs. I found this Flickr thing; it shows a gallery of images taken with a Mallincam DS432M (the same 432 sensor) https://flickr.com/search/?text=ds432m I don't know whether the Mallincam is cooled or not (I think it is), but look at these AB images taken with the uncooled one NGC 1514 LRGB | M57 My point is, why don't more people test out their uncooled 432 cameras with deep space? I think it will work very good. |
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I went to compare all ZWO's mono planetary cameras; this one had the largest pixel size (9µm) and decent specifications; I thought it could actually be used for DSOs. I'll be trying that in the near future. |
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| So Player one uses that sensor in their Cooled Apollo Max. If ZWO had one I might try it for some planetary nebula. |
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| https://astrob.in/6bh4qy/B/ Inever worked out why i got this speckled effect.I think i chose the wrong gain setting but it was an interesting experiment... |
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| Thanks for the responses. One more thing I wanna mention: Whoever is willing to test out NB with the 432, It would be nice if it's tested with both 7nm filter(s) and 3nm filter(s), just see the difference in signal and noise. I'm only saying it would be nice, not you have to do that. |
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I have an update: This guy uses the 432mm https://www.astrobin.com/users/BartekHnatio/ One of his 2 images is of the "Sivan 2" nebula; supposedly 15 hours integration with the ASI432mm and a 6nm H-a filter; it doesn't look too good for 15 hours, but the nebula is a dim one. I'm hoping it's just his processing technique that made it look like that...  I'm gonna wait for Andrea's result and anyone else's. Daywalker's result looked okay I think; it just needed NXT maybe. |
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| The pixel size is just a bit much, even my 2000mm setup would be undersampled with it. It also came to my attention that this sensor has amp glow (maybe someone can confirm/deny). Combined with the price and lack of cooling I don't think it's an attractive option for DS. |
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Rafał Szwejkowski: I don't think that there would be any actual undersampling in typical seeing (3") and I'd rather be undersampled that oversampled. But, yes, there is significant EL glow which seems to rule out uncooled operation, realistically, unless it is for very short durations. Player One however sells a cooled camera (Apollo-M Max Pro) sporting the same sensor so this might be an option. |
