The case of overcor...
 
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The case of overcorrecting flats, need help

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(@stastro)
Black Hole
Joined: 5 years ago
Posts: 183
 

Focuser Position!!!!!!  So it is pretty evident that the under/over correcting was being caused by the Baader filters, as the Chroma work fine with the EL Panel, this is the blue calibrated stack now

image

   
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(@wvreeven)
Quasar
Joined: 6 years ago
Posts: 2133
 
Posted by: @stastro

Focuser Position!!!!!!

What do you mean with that? Did your focuser move so the telescope was unfocused when taking the flats? If yes, how much was it moved?


   
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(@stastro)
Black Hole
Joined: 5 years ago
Posts: 183
 
Posted by: @wvreeven
Posted by: @stastro

Focuser Position!!!!!!

What do you mean with that? Did your focuser move so the telescope was unfocused when taking the flats? If yes, how much was it moved?

It was out by around 16000 steps :-O

 


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

@stastro That is awesome! So your filter gamble paid out. I now wonder if you get any word back from Baader regarding this.


   
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(@stastro)
Black Hole
Joined: 5 years ago
Posts: 183
 

Well I sent an email to Thomas Baader, copying in my reseller, and guess what.....no reply, my reseller even copied in Lee Sproats, again no reply.  It seems that Baader's attitude is "This is how it is, so live with it"


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

Mmm, that's not good indeed. I had the OIII issue with huge halos, apparently also a batch issue. It's not great advertisement for sure.


   
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(@screetch82)
White Dwarf
Joined: 4 years ago
Posts: 7
 

Hi

 

i also have Baader CMOS opt. OIII filter and the following issue: 

WhatsApp Image 2023 08 11 at 21.38.53

no issue with skyflats, but with flat panel it just doesnt wanna work


   
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