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Author Topic: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!  (Read 14158 times)

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Offline John Winfield

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #75 on: 10:00:10, 13 November, 2006 »
I was perusing this thread, but it's been somewhat crippled with the deletion of all the images during the regular database pruning...

10" LX200R, Pentax SDHF-75 on AP900
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Offline dciobota

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #76 on: 18:45:17, 14 November, 2006 »
 Yeah John, too bad, eh?  I think Fordy is compiling a final report out of this to go into the KB, might want to ask him if he has the pics.

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Offline the fordster

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #77 on: 11:28:57, 15 November, 2006 »
Unfortunately not, mate - Hopefully rob can retrieve them from a backup - Then I'll compile the article.

I also want to do my LP fuilter comparison and focal reducer shootout as knowledgebase articles too, but may need to get those images beore I start :-\

Offline dciobota

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #78 on: 18:16:07, 15 November, 2006 »
  Oh yeah, the LP filter shootout was great!  :cool:

  Definitely bring those back if you can, I may actually dig mine up if you want them.  Heck, I'll even do a ccdinspector on them!  :D

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Offline the fordster

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #79 on: 11:23:44, 16 November, 2006 »
Now that'd be the icing on the cake 8)

Offline dciobota

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #80 on: 18:17:13, 16 November, 2006 »
 Will do then Andy!  :D

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Offline mcrossley

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #81 on: 10:30:43, 17 November, 2006 »
OK let's add an image to this thread...

No chromatic aberation in this one as it's mono :D but there isn't any anyway  8)

SV4 at prime with SXV-H9 and CLS filter (which blobs the stars a bit more than without - I forgot to take it out for these shots  :roll:).  The image is at 50% full scale with 100% inserts.

I am still having problems with 'sag' in the image train as you can see towards the right hand side - I hate push fittings!

Mark

[attachment deleted by admin]

[attachment deleted by admin]
Mark
C14 SCT + Hyperstar » SV4 Apo » MI-250 + Gemini » QHY8 » QHY5 » ToUcam
http://www.wilmslowastro.com/

Offline the fordster

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Re: Coma and Chromatic Abberation Comparisons - Could Be A Winner!!!
« Reply #82 on: 12:41:06, 20 November, 2006 »
Nice 8) - The SV4 is just a lovely bit of kit!

 

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