Quote:
Originally Posted by gregbradley
With Baaders you'll need to allow for different imaging lengths for the different colours. Have a look at the Astrodon website as he mentions what some imagers worked out as the ratios for the various colours. Its not 1:1:1.
Greg.
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That's right. I did a G2v test and came up with values between 0.8 and 1.2. Written them down somewhere!!
But I presume that's different from the differing focal length which is easy to test with a baht mask.
Cheers