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M103

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16 years 8 months ago #54225 by albertw
Replied by albertw on topic Re: M103

Now, that could be a couple of things - real noise, my monitor or you've posted a low resolution image. I suspect the last item...


Looks a lot like jpeg compression noise on my screen.

That aside its a superb image. Are the diffraction spikes real or photoshopped? (I think that might be what Seanie means by 'twinkle effect'!)

Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/

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16 years 8 months ago #54232 by phoenix
Replied by phoenix on topic Re: M103
Dave I think its definitely jpeg compression. The image I uploaded was 3.84 MB but on flick r it is 148 KB. I use flickr uploader and it used to ask if you wanted to compress the image before upload but this option seems to have disappeared. The program may be automatically compressing the image.

Seanie... fishing line

Kieran
16" ODK (incoming), Mesu Mount 200, APM TMB 80mm, SXV H16, SXV H9
J16 An Carraig Observatory
ancarraigobservatory.co.uk/

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16 years 8 months ago #54274 by Seanie_Morris
Replied by Seanie_Morris on topic Re: M103

Seanie... fishing line


10lb or 25lb capacity? :lol:

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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16 years 8 months ago #54350 by ayiomamitis
Replied by ayiomamitis on topic Re: M103
Nice catch Kieran. Lots of beautiful colouration.

Anthony Ayiomamitis
Athens, Greece
www.perseus.gr

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16 years 8 months ago #54360 by dave_lillis
Replied by dave_lillis on topic Re: M103
Hi Kieran,
Flickr auto converts the image for you, but does it rather badly, I have found you'd end up with a better image by doing the conversion in photoshop yourself rather then letting flickr do it for you.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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