Thanks for this video, very helpful. I have got the SVbony UV/IR cut and CLS filters which I am going to use initially with my Askar 80phq and a DSLR, eventually upgrading to a ASI585MC.
Ha ha! That would be some heavy stuff :) Luckily we're just doing some quantum physics, relativistic theories and questions about the universe here - The easy stuff :)
Excellent overview of the physics of light and dealing with light polution filters. Question, please: I have a ZWO 533MC Pro camera and a 60 mm 4 element APO, 80 mm triplet APO, and a C6 SCT. I'm shooting in Bortle 8+ city light pollution...I bought a Svbony SV220 dualband filter, but there's no sulfur filtering. I'm looking at the Altair Tri RGB that works on Ha, OIII, and SOIII. What's your recommendation, please, for a single " ideal" filter for my optical train. Thanks, Michael
@@michaeledmonds3027 Hello! If it’s narrowband filters we’re talking about, I would have gone for a Sii Oiii dual band filter, like the Altair 4nm one. And of course the L-Ultimate Ha Oiii 3nm filter. Thanks for watching!
Thank you for the good explanation, finally I am getting a little insight how filters and Monochrome cameras work. btw, my son is also studying Physics and astronomy, but his explanation is not so clear ;)
Thank you so much for watching, I’m glad it helped! Also, congrats on having a really smart kid, in my opinion astronomy is the hardest field within physics, I personally didn’t make it all the way but had to switch to atomic physics in the end to get my degree. 🙈
So a question: is the Optolong L-Pro a broadband or a narrowband filter? Is the relatively new Optolong L-Quad Enhance a broadband or a narrowband filter? If a filter allows 4 or more wavelengths of light to pass but each wavelength is confined to a narrow band, which category does it fall into? Thanks for the explanation on filters - very helpful.
I’d say that both the L-Pro and the L-Quad are light pollution filters, their bandpass is ranging from about 100nm to 30nm (hard to tell, but it’s somewhere there). The main difference between them is that the L-Quad has blocked the light around 600nm and have a very small reduction of the bandpass on the others wavelengths. As I mention in the video, a narrowband filter is defined solely by it’s bandpass, starting at around 25-30nm and less. So the only thing that defines a narrowband filter is it’s bandpass, not the amount of wavelengths it targets. For example, the L-enhance is a narrowband filter targeting H-beta, Oiii and H-alpha but at pretty big bandpasses (25nm and 12nm) whilst the L-Ultimate narrowband filter let’s in “only” Oiii and H-alpha at 3nm each and easily outperforms the L-enhance. I hope this helps and thanks for watching!
Probably the most thoughtful and comprehensive intro to filters I've come across!
@@mansurk37 I’m glad you liked it! Thank you for those kind words, it means a lot!
Very elaborate. Probably the best video to demystify complex jargon.
Thank you for the kind words, I appreciate that! Glad you liked it!
Thanks for this video, very helpful. I have got the SVbony UV/IR cut and CLS filters which I am going to use initially with my Askar 80phq and a DSLR, eventually upgrading to a ASI585MC.
That's a solid setup! The 585MC is a good camera! I was thinking of 585 or 2600 and ended up with the latter :-) Thanks for watching!
I thought you said "let's have a quick conversation about life." This was going to get heavy!
Ha ha! That would be some heavy stuff :) Luckily we're just doing some quantum physics, relativistic theories and questions about the universe here - The easy stuff :)
Great info! Thanks.
@@barnaclewatcher4060 you’re welcome, thanks for watching!
Fabulous video 👌
@@asp5993 thank you! 🙏🏻
Very informative Gedi, thanks for sharing this!
You are welcome, I'm glad you liked it and thanks for watching!
Greatly explained, thank you 👍
Thank you! I appreciate that!
Excellent overview of the physics of light and dealing with light polution filters. Question, please: I have a ZWO 533MC Pro camera and a 60 mm 4 element APO, 80 mm triplet APO, and a C6 SCT. I'm shooting in Bortle 8+ city light pollution...I bought a Svbony SV220 dualband filter, but there's no sulfur filtering. I'm looking at the Altair Tri RGB that works on Ha, OIII, and SOIII. What's your recommendation, please, for a single " ideal" filter for my optical train. Thanks, Michael
@@michaeledmonds3027 Hello! If it’s narrowband filters we’re talking about, I would have gone for a Sii Oiii dual band filter, like the Altair 4nm one. And of course the L-Ultimate Ha Oiii 3nm filter. Thanks for watching!
Thank you for the good explanation, finally I am getting a little insight how filters and Monochrome cameras work.
btw, my son is also studying Physics and astronomy, but his explanation is not so clear ;)
Thank you so much for watching, I’m glad it helped! Also, congrats on having a really smart kid, in my opinion astronomy is the hardest field within physics, I personally didn’t make it all the way but had to switch to atomic physics in the end to get my degree. 🙈
So a question: is the Optolong L-Pro a broadband or a narrowband filter? Is the relatively new Optolong L-Quad Enhance a broadband or a narrowband filter? If a filter allows 4 or more wavelengths of light to pass but each wavelength is confined to a narrow band, which category does it fall into? Thanks for the explanation on filters - very helpful.
I’d say that both the L-Pro and the L-Quad are light pollution filters, their bandpass is ranging from about 100nm to 30nm (hard to tell, but it’s somewhere there). The main difference between them is that the L-Quad has blocked the light around 600nm and have a very small reduction of the bandpass on the others wavelengths.
As I mention in the video, a narrowband filter is defined solely by it’s bandpass, starting at around 25-30nm and less. So the only thing that defines a narrowband filter is it’s bandpass, not the amount of wavelengths it targets. For example, the L-enhance is a narrowband filter targeting H-beta, Oiii and H-alpha but at pretty big bandpasses (25nm and 12nm) whilst the L-Ultimate narrowband filter let’s in “only” Oiii and H-alpha at 3nm each and easily outperforms the L-enhance. I hope this helps and thanks for watching!