› Forums › Photometry › Photometric filters › filter response
7 June 2020 at 11:17 am
#582614
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
The response curve of those Chroma filters
https://www.chroma.com/products/sets/27103-bessell-ubvri
looks very different from the Baader (and other) versions I’ve seen
http://astrograph.net/Baader-Planetarium-Johnson-/-Bessel-V-Filter-125-and-50mm-x-50mm
Robin