Ha SII OIII 7nm Narrowband Filter S-series Size:SHO 1.25" If you use a telescope

If you use a telescope with an aperture larger than 5"

1mm (for Pocket Powerbox and any other Pegasus Products)

This telescope stands out in its class with a three-lens air-spaced ED-apochromat design

while still being manageable for many modern refractors and corrected telescopes

and overall image quality

Ha SII OIII 7nm Narrowband Filter S-series Size:SHO 1.25" If you use a telescopePlayer One S series filter using high quality optical glass substrate and multi layer composite coating technology, which has excellent optical performance in astrophotography. Available in Ha SII OIII and SHO Complete sets in bot 1. 25" and 2" sizes In astrophotography, narrowband filters can capture specific wavelengths to obtain specific details. Usually there are three narrowband filters, respectively, Ha SII OIII filters, Player One produced