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What are these RGB filters?

imaging
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#1 mollycule

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Posted 24 November 2017 - 11:19 AM

I'm trying to figure out what filters I have here - they were given to me.  Can anyone help me out? (images attached).

2017-11-24 11.12.37 (small).jpg

2017-11-24 11.12.42 (small).jpg

2017-11-24 11.12.48 (small).jpg

 



#2 DLuders

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Posted 24 November 2017 - 11:27 AM

They are part of a Professional BVRI filter set for G2CCD camera:  http://www.gxccd.com...id=309&lang=409


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#3 mollycule

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Posted 24 November 2017 - 11:51 AM

Oh neat, thank you DLuders!!



#4 Brett Waller

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Posted 24 November 2017 - 11:55 AM

They are Schuler BVRI narrow band filters used for stellar and asteroid photometry. They are not the usual RGB filters used for imaging.  Contact me off-thread if you need any additional information.



#5 mollycule

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Posted 24 November 2017 - 12:02 PM

Thanks Brett!  Believe it or not I have managed some decent RGB imaging with them even though they're not exactly RGB...but the blue filter I've discovered has some weird issues where they stars look blotchy (loosk like I left the Bahtinov mask on, sort of) that haven't fully gone away with a good cleaning, so I was looking at getting some new RGB filters, and wanted to know what I already had.  Looks like I should definitely buy the RGB filters since these don't exactly qualify.  I'll hold onto these for sure though, and I have the IR one as well.  Thanks!


Edited by mollycule, 24 November 2017 - 12:03 PM.



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