Solar Filter Cheat Sheet

Filter Options
Applicable Telescopes/Lenses Telescope Tube/Lens Diameter Glass Filters Film Filters Polymer Filters
Camera Lens with 37mm thread 37mm (thread) TH-RG-8.5X11, AZ-1032
Camera Lens with 40.5mm thread
40.5mm (thread)
TH-RG-8.5X11AZ-1032
Camera Lens with 43mm thread 43mm (thread) TH-RG-8.5X11AZ-1032
Camera lens, finder, monocular, binocular (need 2 filters) with <1.75" Outer Diameter (OD) 44mm\1.75" SP-ST200G, AZ-1501 TH-RG-8.5X11AZ-1032 TH-BP-8.5X11
Camera Lens with 46mm thread 46mm (thread) TH-RG-8.5X11AZ-1032 SP-ST46MM
Camera Lens with 49mm thread 49mm (thread) TH-RG-8.5X11AZ-1032 SP-ST49MM
Camera lens, finder, monocular, binocular (need 2 filters) with <2" Outer Diameter (OD) 50mm\2.00" SP-ST225G, AZ-1502 TH-RG-8.5X11AZ-1032 TH-S-2000
Camera Lens with 52mm thread 52mm (thread) TH-RG-8.5X11AZ-1032 SP-ST52MM
Camera lens, finder, monocular, binocular (need 2 filters) with <2.25" Outer Diameter (OD) 54mm\2.25" SP-ST232G, AZ-1503 TH-RG-8.5X11AZ-1032 TH-S-2325
Camera Lens with 55mm thread 55mm (thread) TH-RG-8.5X11AZ-1032 SP-ST55MM
Camera Lens with 58mm thread 58mm (thread) TH-RG-8.5X11AZ-1032 SP-ST58MM
Camera lens, finder, monocular, binocular (need 2 filters) with <2.4" Outer Diameter (OD) 60mm\2.37" AZ-1504
Camera Lens with 62mm thread 62mm (thread) TH-RG-8.5X11AZ-1032 SP-ST62MM
Celestron 9x50 Finder or William optics 7x50 finder 65mm\2.55" AZ-1504
Camera Lens with 67mm thread 67mm (thread) TH-RG-8.5X11AZ-1032 SP-ST67MM
Meade NG-60 or MGC-60, small refractors, finder scopes, camera lenses, and binoculars with less than 70mm OD 70mm\2.75" SP-ST275G, AZ-1505 TH-RG-8.5X11AZ-1032
Camera Lens with 72mm thread 72mm (thread) TH-RG-8.5X11AZ-1032 SP-ST72MM
Telescopes with max outer diameter of 73mm 73mm\2.87" SP-ST300G
Celestron 60, Meade DS-2070AT,DS-60 EC, Orion 70 is suitable, Vixen A70LF 76mm\3.00" SP-ST325G, AZ-1506 TH-RG-8.5X11AZ-1032 TH-S-3000
Camera Lens with 77mm thread 77mm (thread) TH-RG-8.5X11AZ-1032 SP-ST77MM
Camera Lens with 82mm thread 82mm (thread) TH-RG-8.5X11AZ-1032 SP-ST82MM
Takahashi FS-60C, some 70mm refractors less than 84mm OD 84mm\3.25 SP-ST350G, AZ-1507 TH-RG-8.5X11AZ-1032 TH-S-3250
Celestron's 60 AZ and EQ, 80 EQ, Meade's ETX-60AT ETX-70AT, NG-60, Orion Observer 60 AZ and EQ, Tele-Vue 76 and Pronto, Vixen's A80MF, A80SSWT, and ED81SWT 90mm\3.50" SP-ST375G, AZ-1508 AZ-1000, AZ-1015, TH-RG-8.5X11AZ-1032 TH-S-3500
Older models of Celestron 80, Meade ETX-80 AT-TC, DS2080. Orion Shortube 80, Observer 70, Astroview 80/90, and Explorer 80/90. Takahashi SKY 90, Vixen ED80SF and ED100SF 95mm\3.75" SP-ST400G, AZ-1509 AZ-1000, AZ-1032 TH-S-3750
Meade ETX 90m, Celestron Nexstars 60, 80, 80GT, Celestron Firstscope 90EQ, Orion Starmax/ Apex 90 101mm\4.00" AZ-1510 TH-4000, BA-ASTF-80, AZ-1032 TH-S-4000
Telescopes with max outer diameter of 105mm 105mm\4.13" SP-ST425G
Orion, Sky-Watcher, Vixen 80 or 100mm ED 108mm\4.25" AZ-1511 AZ-1003, BA-ASTF-80 TH-S-4250
Telescopes with max outer diameter of 111mm 111mm\4.37" SP-ST450G
Orion, Sky-Watcher, Vixen 80 or 100mm ED, Canon 100-400mm L IS I Lens shield 114mm\4.50" AZ-1512 AZ-1003, AZ-1001, BA-ASTF-80 TH-S-4500
Telescopes with max outer diameter of 117mm 117mm\4.6" SP-ST475G
Meade ETX105 and Celestron Astromaster 90 120mm\4.75" AZ-1513, TH-4750 AZ-1001, BA-ASTF-80 TH-S-4750
Celestron Firstscope 76, Nexstar 4/4SE, C4, 102HD, Meade's ETX 105, DSX 102, 2045 . Stellarvue SV102ED, Skywatcher 80ED and Evostar 80ED, Questar 4.75, Takahashi FSQ-106, Tele-Vue's NP101 and 102, Vixen VMC 110L 124mm\4.87" SP-ST500G, AZ-1514 BA-ASTF-100
Celestron older models of C102 HD, Meade 5000 ED APO 80mm, Meade 2045, ETX 105, TV-101-102, or Meade DSX 102 127mm\5.00" SP-ST525G, AZ-1514 BA-ASTF-100 TH-S-5000
C-102 HD 133mm\5.25" BA-ASTF-100 TH-S-5250
Celestron CG4.5, C5/5i, Firstscope 114, Nexstar 5/5SE, Nexstar 114, 130GT. Meade's ETX 125, 114 EQ, DS-2114 ATS, Orion's ShortTube 4.5, Skyquest XT4.5, 127 Mak, Takahashi TSA-102 139mm\5.50" SP-ST575G, AZ-1515 AZ-1002, BA-ASTF-100 TH-5500
Celestron CG4.5, C5/5i, Firstscope 114, Nexstar 5/5SE, Nexstar 114, 130GT. Meade's ETX 125, 114 EQ, DS-2114 ATS, Orion's ShortTube 4.5, Skyquest XT4.5, 127 Mak, Takahashi TSA-102,, Canon 300mm f/2.8 L IS lens shield 146mm\5.75" SP-ST600G, AZ-1516 AZ-1002, TH-RG-5750, BA-ASTF-100, BA-ASTF-120 TH-S-5750
Meade 130mm 5000 ED APO, Tele-Vue 127NP, Vixen 114. 152mm\6.00" SP-ST625G TH-RG-6000, BA-ASTF-100, BA-ASTF-120 TH-S-6000
Meade 127NT, LXD55/LXD75 AR-5, Orion SpaceProbe 130ST, Starseeker 130, and 130EDF5, Astrophysics 125 and 130 158mm\6.25" SP-ST650G, AZ-1518 AZ-1013, TH-RG-6250, BA-ASTF-120, BA-ASTF-140 TH-S-6250
130mm Newtonian telescopes 165mm\6.50" AZ-1013, BA-ASTF-120, BA-ASTF-140 TH-S-6500
CelestronC-150 CR/C-150 HD, Meade 6" Apo 152 ED, DS-2130 ATS, LXD55 SN-6, Orion's SpaceProbe 130, SkyWatcher 6", Stellarvue SV5 and SV125, Takahashi FS-128, TOA-130, and TOA-150, Intes Mk67 178mm\7.00" SP-ST712G, AZ-1519
Astrophysics 155, Celestron Nexstar 6/6SE, C6, Starhopper 6, Orion's AstroView 6, SkyView Pro 6 or 6LT, Skyquest XT6, Vixen 150 181mm\7.12" SP-ST750G, AZ-1520 AZ-1016, TH-RG-7125, BA-ASTF-160 TH-S-7125
Astrophysics 155, Celestron Nexstar 6/6SE, C6, Starhopper 6, Orion's AstroView 6, SkyView Pro 6 or 6LT, Skyquest XT6, Vixen 150 187mm\7.37" SP-ST750GAZ-1520 BA-ASTF-160
C-6, Meade 6" Schmidt-Newtonian, Vixen 150, AP-155 190mm\7.50" BA-ASTF-160 TH-S-7500
152mm Refractors (measure dew shield diameter) 196mm\7.75" AZ-1521
Meade 7" APO 178ED, Takahashi Mewlon-180 203mm\8.00" SP-ST8377G AZ-1014, BA-ASTF-160 TH-S-8000
Meade 7" APO 178ED, Takahashi Mewlon-180 209mm\8.25" SP-ST8377G BA-ASTF-200
Meade LXD-55 AR-6, M-6 APO, Questar 7 212mm\8.37" BA-ASTF-200 TH-S-8375
Telescopes with OD <8.50" 218mm\8.50" SP-ST875G, AZ-1523 BA-ASTF-200
Telescopes with OD <8.75" 224mm\8.75" AZ-1524 BA-ASTF-200
Older Celestron and Meade 8" SCT. Takahashi's Epsilon-180ED, Vixen's R200SS, VX200L, VMX200L 230mm\9.187" SP-ST9312G, AZ-1524 AZ-1004, TH-RG-9187, BA-ASTF-200 TH-S-9187
Meade and Celestron 8" SCT/ACF, Meade 8" Lightbridge Dob. Orion SkyQuest XT8, Atlas 8, SkyView Pro 8, Vixen R200SS 236mm\9.312" SP-ST950G, AZ-1525 AZ-1004, BA-ASTF-200 TH-S-9187
Meade Starfinder 8, Orion 8 DSE, Celestron CPC/EdgeHD 8" 241mm\9.50" SP-ST975G, AZ-1526 TH-RG-9500, BA-ASTF-200 TH-S-9500
Meade LXD55 SN-8 or LXD75 SN-8, Takahashi CN-212 247mm\9.75" AZ-1527 BA-ASTF-200
Meade 8" Schmidt-Newtonian 254mm\10.00" AZ-1010
Older Skywatcher 8" Reflector 260mm\10.25" AZ-1528 BA-ASTF-240
Celestron C9.25/CPC/EdgeHD 266mm\10.50" AZ-1529 AZ-1005, BA-ASTF-240 TH-S-10500
Starhopper 8, C-9 1/4" 273mm\10.75" BA-ASTF-240 TH-S-10750
Celestron 10" Newtonian, Orion SkyWatcher 10" 289mm\11.37" AZ-1530 BA-ASTF-240
C-10 Newt., Orion Skywatcher 10 292mm\11.50" AZ-1006, BA-ASTF-240 TH-S-11500
Meade 10" SCT/ACF/RCX 298mm\11.75" AZ-1531 AZ-1006
Meade 10" SCT/ACF/RCX/ Schmidt-Newt, Vixen VMC260L 302mm\11.87" SP-ST1200G
Meade 10" S/C, LXD 55 305mm\12.00" BA-ASTF-280 TH-S-12000
10" Dobsonian (measure the outer diameter) 310mm\12.22" BA-ASTF-280 TH-S-12225
Celestron CPC 1100 or C11 SCT. Meade's 10" Lightbridge Dobsonian, Orion SkyQuest XT10 311mm\12.25" SP-ST1250G, AZ-1532
C-11 Schmidt Cassegrain 317mm\12.50" BA-ASTF-280 TH-S-12500
Meade Starfinder 10,Coulter 10", Takahashi Mewlon 300 327mm\12.87" SP-ST1300G, AZ-1533 BA-ASTF-280
Meade 12" SCT/ACF/and RCX 400 12" 346mm\13.62" SP-ST1375G, AZ-1534 AZ-1008
12" Meade SCT and some 11-12" dobsonians (measure the outer diameter) 349mm\13.75" TH-S-13750
Meade 12" Lightbridge, Orion Skyquest XT12, or Skywatcher 12" 365mm\14.37" SP-ST1450G
Meade Starfinder 12.5" 381mm\15.00"
Telescopes with an OD <15.25" 387mm\15.25" TH-S-15250
Older Celestron 14" SCT 397mm\15.62" SP-ST1575G, AZ-1536 AZ-1009
Celestron 14" SCT/EdgeHD 403mm\15.87" SP-ST1600G, AZ-1537 AZ-1009
Celestron 14" SCT/EdgeHD 406mm\16.00" TH-S-16000
Telescopes with an OD <17.00" 432mm\17.00" TH-S-17000
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