5 replies to this topic

[Jcat]

I have an astro modified T6i camera and came across a local deal for some filters.  IR/UV and Baader narrowband (6.5nm) SHO filters and filter drawer. I live on bortel 3 skies if that helps.  I know I may not be ready for filters quite yet as I am still new just thinking this might be the next step.  Thanks.

[Tapio]

If you have Bortle 3 skies you really don't need NB filter - at least not for start. IR/UV depending on optics (with lenses yes).

[danny1976]

For a OSC camera you need duo narrowband filters. The SHO filters are for mono cameras. 

 

Popular choices are Antlia ALP-T, L-Extreme, L-Ultimate or the Askar D1/D2. They are all Ha/OIII except for the D2 which is SII/OIII.

 

Even in Bortle 3 I would use these filters, look here.

Edited by danny1976, 19 March 2023 - 08:22 AM.

[Tapio]

Well you can use separate NB filters with OSC but duo or tri band filters are more practical and economical.

[Jcat]

For a OSC camera you need duo narrowband filters. The SHO filters are for mono cameras. 

 

Popular choices are Antlia ALP-T, L-Extreme, L-Ultimate or the Askar D1/D2. They are all Ha/OIII except for the D2 which is SII/OIII.

 

Even in Bortle 3 I would use these filters, look here.

Would a NBZ filter be also on your list?

[danny1976]

For me not really because of the wide bandpasses. But might be interesting for F2 telescopes.