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Solar Filter Lookup Tool

You can use the table below to find a suitable solar filter for you telescope.

This table was compiled by Agena AstroProducts using many inputs from companies and individuals (thank you!) and a lot of cross-referencing. While we believe that this compilation should be accurate, it is based on data provided by others, and we have no way of verifying if every combination below is perfect or not. Hence, please use this table as a general guide. It is still your responsibility to measure your telescope’s tube/dewshield size and compare it with the specs of the solar filter.

If you do not see your telescope listed below, please contact us with careful measurements of the inside and outside diameter of your telescope tube (preferably in mm), and they will be happy to look up what might work.

See errors below that need to be corrected? Know tube dimensions or have telescope-filter compatibility info not listed below? We’d love to hear from you and add to this table for the benefit of everyone. Thank you.

Filter Fit Notes

  1. 1. Fits the inside diameter of telescope
  2. 2. Works with optional 20mm screws sold by Agena

Brand Name Baader Planetarium Agena AstroProducts Spectrum Telescope Meade Celestron Orion
Coronado Coronado PST Personal Solar Telescope with Case and Malta Table Top Tripod Mount
DayStar Filters DayStar 80mm Refractor Telescope with Quark H-Alpha Solar Filter - Chromosphere Model # DSZ4C80B
DayStar Filters DayStar 80mm Refractor Telescope with Quark H-Alpha Solar Filter - Prominence Model # DSZ4P80B
DayStar Filters DayStar 80mm Refractor Telescope with Quark Solar Filter - Sodium D Model # DSZSD80B
Coronado Meade / Coronado 40mm 0.5A PST - Double Stack H-Alpha Solar Telescope
Coronado Meade / Coronado 40mm f/10 PST H-Alpha Personal Solar Telescope
Coronado Meade / Coronado 40mm f/10 PST H-Alpha Personal Solar Telescope with Case
Meade Meade 10" LX90-ACF f/10 Advanced Coma-Free ACF Telescope with UHTC # 1010-90-03 07715
07763
Meade Meade 12" LX90-ACF f/10 Advanced Coma-Free ACF Telescope with UHTC # 1210-90-03
Meade Meade 8" LX90-ACF f/10 Advanced Coma-Free ACF Telescope with UHTC # 0810-90-03 07722
07760
William Optics William Optics 2013 ZenithStar 71mm Doublet ED Refractor with 2" 0.8x Reducer / Flattener # A-Z71A-P
William Optics William Optics 2013 ZenithStar 71mm f/5.9 Doublet ED Refractor # A-Z71A SF110V (2)
07752
07745
William Optics William Optics GT71 71mm f/5.9 Apo Refractor # A-F71GT
William Optics William Optics GT71 71mm f/5.9 Apo Refractor with 2" 0.8x Reducer / Flattener # A-F71GT-AP
William Optics William Optics Star71-II 71mm f/4.9 Apo Imaging Refractor / Astrograph # A-WO71-II
William Optics William Optics WO-Star71 71mm f/4.9 Apo Imaging Refractor
William Optics William Optics WO-Star71 71mm f/4.9 Apo Imaging Refractor SF110V (2)
07752
07745
William Optics William Optics Zenith Star 70mm f/6 Doublet ED Refractor # A-Z70A
William Optics William Optics ZenithStar 80mm f/6.8 ED Apo Refractor with DDG Integration
William Optics William Optics ZenithStar 80mm f/6.8 II ED APO Refractor