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swag72

IC1805 in mono ....... waiting for colour or not ...... !!

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Here's something that's been sitting on my PC since August! Not sure why I've done nothing with it. Anyway, for me this is an eternal favourite, I love it. But there's the problem ...... do I collect colour data (I've already done the Heart in Bi colour before) or just leave it as a mono rendition?

Interestingly, I had to go back and check my data prior to stretch as to the left of the middle there's a dark circle around a detail of nebulosity. It was so pronounced here that I thought I'd messed up on the processing ........... Glad to say that it IS indeed there. Not noticed it before. What I love about this, is that I can get the whole heart in one frame :D

Details:

Details:
M: Avalon LInear Fast reverse
T: Takahashi FSQ85 0.73x
C: QSI683 with 1.25" Ha filters

23x1800s in Ha totalling 11.5 hours. 

post-5681-0-23204300-1448792315_thumb.pn

Edited by swag72
  • Like 16

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This looks great! I think the Heart neb does respond to colour well with it's blue centre so personally I will be trying for the other channels when we next get a clear sky - if it hasn't disappeared into the West first that is...

ChrisH

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I love your bi-colour image, Sara, but the mono rendition looks great too with its big tonal range and contrast - very satisfying to look at.

Adrian

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It is nice to see a mono image now and again. I find that colours can be distracting at times and take your eyes off the fine detail captured.

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I'm currenly also sitting on a finished HA-Version of IC1805, (4 panel mosaic).

Now that i have the fixed OIII-Non-Halo-Baader-Filter i will be persuing OIII, but this will probably take me around a half a year.

It seems to me sometimes that the HA looks amazing with contrast, and when you add OIII & SII, it takes away a little of the breathtaking contrast.

But somehow something in my head that this is just an excuse not having to fight hard for that OIII & SII-Data :)

So much said - its a phenomenal image you have made. I'd be interested in a crop of the bottom right hand side's background to see the noise level?

Kind regards, Graem

Edited by graemlourens

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Hi all and thanks for your comments! Looks like it will stay mono then! :D

Did you think it was noisy then Graem? 

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I don't know, thats why i'd love to see a crop of the right bottom corner :) (The image you attached is too small for me to be able to see background noise levels)

As i have been getting as much SNR as possible on this target, i'd love to compare it to mine (this will be my first huge 2 meter by 1 meter printout) - i have been not able to pull out as much contrast as you,  could be related to my bad sky quality or integration time. Just out of interest.

Edited by graemlourens
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I hate looking this closely Graem - If there's a problem, too much noise or un-round stars I DONT want to know :D I'm more of a pretty picture kind of girl than a pixel peeper :)

This is a 100% crop of the bottom right.

post-5681-0-93888500-1448909990_thumb.pn

Edited by swag72
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Thx, that is a beautiful background.... and stars are perfect!

I just saw your flickr page, a huge library for me to compare exposure times on targets. 

Stunning pictures - you've gotten around the sky i see :)

Kind regards, Graem

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Terrific image Sara. I hadn't seen it presented in that orientation before. Makes it look even ruder than normal, don't you think?

Steve

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It really helps to see work this good, it sets a STD for me to attain but alas; it is difficult in the u.k with this eternal poor weather!

Ray

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Cheers guys for looking and commenting :)

Sadly I don;t think I could explain the rudeness that I see without getting a perma-ban from the forum!! :D

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I think either mono or colour suit this target very well. I love it as it is though Sara. Lovely work.

Pete

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A lovely chunky helping of Ha reaching parts of the target not normally seen. I'd call that deep!

Nicely done, of course, but no surprises there.  :icon_salut:

Olly

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Am i the only one that doesnt quite see the "rude thing"?

I think you might be!!!

:grin: lly

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Thank you Sara, I often like B&W better than colour!

This Hα has beautiful, rich tones.

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Thanks Olly - I am pleased that it's not only me!!! I know that you are partial to calling this the 'Members member' :D

Thanks Ruud :) Glad that you like it.

Edited by swag72
  • Like 1

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I can see what you mean in Sara's great picture. My first attempt at IC1805 this spring (one shot with a Canon 60Da on an ES ED80) really looked more like the final proof of existence of the Flying Spaghetti Monster (http://www.venganza.org/about/). I will do my best to capture the rudeness in my next attempt....

post-44514-0-05656700-1449008869_thumb.j

Edited by gorann

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Thanks Olly - I am pleased that it's not only me!!! I know that you are partial to calling this the 'Members member' :D

Thanks Ruud :) Glad that you like it.

No, the Member's Nebula which resonates verbally, for me, with the entirely unconnected 'Members' Banking' at Brooklands, the pre-war race track. I just like words and play around with them endlessly!

Olly

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