Moon - Hercules and Atlas

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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Tachyon
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Moon - Hercules and Atlas

Post by Tachyon »

Orion ED100...
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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boothee
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Re: Moon - Hercules and Atlas

Post by boothee »

Tachyon wrote:Orion ED100...
Nice photo! May I know the details of your photo?

Thanks,

;O)
boothee
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Tachyon
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Post by Tachyon »

Orion ED100 with Televue Powermate 5x and TouUCam. Stacked approx. < 500 frames.

Cheers!
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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rcj
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Post by rcj »

did you do unsharp masking?
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Tachyon
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Post by Tachyon »

rcj wrote:did you do unsharp masking?
Not much, I found the effects too 'artificial'. I tend to go easy with Registax also. Somehow if it's a bit 'blur' it looks more appealing.. heh.

But I do adjust the brighness and contrast to highlight the desired features. For example in the pic on rima ariadaeus below.

Cheers!
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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rcj
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Post by rcj »

go easy on the sharpening. not sure if it is my eyes or screen but some of the craters have edges that are overexposed white (255), and there's a little ringing effect, this is evident side-effects of sharpening. yes, i do agree with you that a little "blur" is more natural. ;P
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Tachyon
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Post by Tachyon »

Yeah.. that's the effect of the brightening and contrast to bring out the inteersting 'dark' features. Always a trade-off, isn't it?

Cheers!
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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Aryanto
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Post by Aryanto »

Tachyon,
NICE photo... (and I am filled with envy!)
You can also try gamma correction. I like gamma correction because it usually tackle both contrast & brightness at the same time.
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rcj
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Post by rcj »

Hi andrew,
actually it is not always a tradeoff, you could use curves application which is a non linear process to "hold down" on the highlights and bring out the details in the darker regions. this technique is also used in bringing out fainter nebulae. But the idea here is to adjust by small amounts, and not one large change. Do you still have the raw stacked image? I could give it a try.
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Tachyon
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Post by Tachyon »

Thanks! I once tried curve correction and ended up frustrated more than ever! Please feel free to correct my pics.

Cheers!
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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