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Comentado en los Estados Unidos el 16 de octubre de 2024
The published spectral transmission plot shows only the visible light range. If you're using this on a monochrome camera without an IR-block filter, be aware this filter does not attenuate IR very much, in fact it has more transmission at 840 and 920 nm than it does in the nominal passband of 500-520 nm. Attached plot of absorbance was taken with an Ocean Optics USB2000 spectrometer.
John R
Comentado en los Estados Unidos el 18 de abril de 2024
Using this excellent quality filter for a Unistellar Telescope. It does as it is supposed to do. Very satisfied with it.
Dan T.
Comentado en los Estados Unidos el 29 de abril de 2022
As far as viewing the nebulaes with this filter with your eyes this thing is not worth the money. It's not even as good as the UHC filter. Maybe ok for astrophotography, but on my 10 inch it's still very dim looking through it! Nothing like what was stated in the description! Would not recommend!
Miguel
Comentado en los Estados Unidos el 24 de abril de 2022
Came packaged nicely and was able to see a significant difference while using it, good value for the money.
Hunter G
Comentado en los Estados Unidos el 16 de febrero de 2021
I ended up returning it so that I could afford an Optolong L-extreme and I don't want to spend time manually layering it with hydrogen-alpha, but I really liked this filter while I had it. My favorite shot was of the Moon using it. It did an incredible job highlighting craters, to my surprise. I was just doing it as an experiment, and it came out looking pretty cool.
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