But I thought that unlike ancient & noisy CCD technology, CMOS with its ultra low read noise does not require long acquisition
Ahem, I note the winky eye, but in case there's any innocent bystanders around, you're being a bit evil here. The missing bit at the end of your sentence should be: "per exposure". You still need the overall exposure time, it's just that these CMOS cameras help fill up the hard disk faster with more images to process.
Back on topic: Nice image, definitely better going to the astrobin link to see it than the cut down version here.
I really, really like the SHO implementation here Suavi. To turn this into a superb image, I would suggest you isolate (mask) the main nebula and apply curves or histogram transformation to brighten the background a little.
BTW, IOS cannot interpret sRGB colour palette so images will always look dark and clipped on an iPhone or iPad - its not your processing.
Thank you all for such wonderful feedback. It took me over 10 nights to collect this data (I have extremely limited views on the sky), so a pleasing result is a nice bonus
Thank you Martin for clarifying that it is IOS not reading colours correctly, and for your advice - I have brightened the background a tiny bit and the image does look better
Wow, Suavi. You knocked that one out of the park! Is this one of the first images from your new scope?
The high QE of your Sony 814 sensor is showing its strength here. Tiny stars as well. Solid colour, no noise. A wonderful image.
Excellent Prawn there Suavi, enjoyable view and time well spent mate, take a My only minor suggestion is, to me it looks like you have washed out/de-saturated the colour a bit in parts of the nebula, perhaps as part of the desaturation of the stars, or from colour noise removal..?
Wow, Suavi. You knocked that one out of the park! Is this one of the first images from your new scope?
The high QE of your Sony 814 sensor is showing its strength here. Tiny stars as well. Solid colour, no noise. A wonderful image.
A great ad for the CFF scopes as well.
Your best ever.
Greg.
Thank you Greg. Yes, it's my second proper image with this telescope. I may yet fine tune the alignement/tilt, but so far I really like my new instrument.
Quote:
Originally Posted by Atmos
The lightening helps
Thanks Colin!
Quote:
Originally Posted by strongmanmike
Excellent Prawn there Suavi, enjoyable view and time well spent mate, take a My only minor suggestion is, to me it looks like you have washed out/de-saturated the colour a bit in parts of the nebula, perhaps as part of the desaturation of the stars, or from colour noise removal..?
Top job none the less
Mike
Glad you like it Mike and thank you for your comment. Actually I did not desaturate this data at any stage, but OIII was very weak so I had to stretch it a lot and more to get any meaningful info from it into the RGB. So I had to apply noise reduction to OIII (and SII) but only at linear stage before combining them into an RGB image.
Unreal image, loving the colours on this one. I'm slowly collecting data on this myself, although by the time it clears in Perth it'll probably by too far gone!
