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arodgator305
Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 07/27/2022 - 19:58
If using only one filter, does one need a transformation? Is that even possible?
arodgator305
Affiliation
American Association of Variable Star Observers (AAVSO)
nevermind my friends....i found a discussion regarding this topic in the forums
https://www.aavso.org/single-filter-transformations
Just wanted to add the reason I am only using V filter is that I have read the Baader (which I have the V filter) has significant red leak.
Alfredo
The red leak is approximately 1050 to 1400 nm. My spectrophotometer measurements show nothing in the IR up to 1020 nm.
CCD cameras can't see those wavelengths. My ST8 is blind, beginning at about 1000nm.
I believe it is safe to use the Baader Blue. I use one.
RayTRE
thanks so much, thats great to hear....i will order one today