Hi, wondering if anyone has compared the half as expensive Celestron Narrowband Filter ($100) to the Lumicon OIII filter ($200)?
I can't get a spectrum chart for the Celestron Filter to compare. The Lumicon people of course show a wonderful chart with near 100% transimission on the 496 & 501nm lines, and near 0% everywhere else (from 400-700nm), with a very sharp breaks at the transmission zone. I've used the Lumicon before and absolutely love it, but the Celestron is much less expensive and touts the same ranges, but it doesn't show on a graph it's percentages across the wavelengths. I am wondering if it's not as tight as the Lumicon is and is more of a bell curve than a sharp rectangle.
Anyone used both of these in the field or have graphical info on the Celestron?
Thanks,
-Mike
I can't get a spectrum chart for the Celestron Filter to compare. The Lumicon people of course show a wonderful chart with near 100% transimission on the 496 & 501nm lines, and near 0% everywhere else (from 400-700nm), with a very sharp breaks at the transmission zone. I've used the Lumicon before and absolutely love it, but the Celestron is much less expensive and touts the same ranges, but it doesn't show on a graph it's percentages across the wavelengths. I am wondering if it's not as tight as the Lumicon is and is more of a bell curve than a sharp rectangle.
Anyone used both of these in the field or have graphical info on the Celestron?
Thanks,
-Mike
