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UBVRI: Baader, Optolong, or Astrodon

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#1 CrossoverManiac

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Posted 09 October 2019 - 01:36 AM

Which one of those three brands of UBVRI filters do you recommend?  I have a 1.25" filter wheel for mounted filters.

 

Side note: Does anyone uses the U and I filters?



#2 Dynan

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Posted 09 October 2019 - 07:33 AM

Astronomik offers UV/IR filters in three differing ranges.

 

https://www.astronom...tml?___store=en

 

I am trying the L-3 for my ASI183MC to try and tame star color.


Edited by Dynan, 09 October 2019 - 07:39 AM.


#3 libmar96

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Posted 09 October 2019 - 09:03 AM

I-band is chosen quite often, especially in exoplanet transit photometry. Reddish stars shine bright in infrared wavelength, so it's even better to use I-band than B-band. That means, U-band filter has very small use, because your SNR will probably always be low.



#4 Ed Wiley

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Posted 09 October 2019 - 08:32 PM

I use Astrodon BVIc. 

Ed


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#5 Jamey L Jenkins

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Posted 09 October 2019 - 09:03 PM

Astrodon per Ed's recommendations...



#6 NJScope

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Posted 10 October 2019 - 04:40 PM

I use 1.25 BVRcIc filters from Custom Scientific.  Unless you are imaging from very and dry high elevations, a U filter is not practical for most purposes.   Also a clear filter can be very useful for studying asteroids.



#7 CrossoverManiac

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Posted 10 October 2019 - 04:43 PM

I use Astrodon BVIc. 

Ed

I ordered the 1.25" B, V, and Ic from Farpoint Astro as every other place either didn't carry them or had them on back order.




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