Solar Cheat Sheat

Solar Filter Cheat Sheet

Are you thinking about what gear to bring for the upcoming eclipse and don’t know where to turn? Do you already own a telescope, pair of binoculars, or camera lens and are having trouble finding the right solar filter among all the options available? Do you want to know whether a glass, film or polymer solar filter is made for your particular scope?

 

OPT has the ultimate Solar Filter Cheat Sheet to help you! Filters are ranked in size from smallest at the top to largest at the bottom, and each type of filter is color-coded to help you select the perfect match for your camera, telescope, or binoculars. If you don’t see your telescope on the list, please measure the outside diameter (OD) of the tube or lens shield and find the closest match down the left column. Because most solar filters slip over the front of a telescope tube for safety, the filter you need may be significantly larger than the diameter of your lens or mirror. If you are still having trouble, please contact us at 1(800) 483-6287.

 

Are you looking instead for dedicated solar binoculars or solar scopes with the filters permanently installed? Click these links to see the many options OPT has available!

 

 

 

RED =  Recommended Glass Filters

GREEN = Recommended Film Filters

BLUE = Recommended Polymer Filters

PURPLE = Recommended Off-Axis Filters

** = Recommended Herschel Wedges (*refractors only)

 

Applicable Telescopes/LensesTelescope Tube/Lens DiameterRecommended Filters
Camera Lens with 37mm thread 37mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST37MM, TH-BP-8.5X11
Camera Lens with 40.5mm thread 40.5mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST40.5MM, TH-BP-8.5X11
Camera Lens with 43mm thread 43mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST43MM, TH-BP-8.5X11
Camera lens, finder, monocular, binocular (need 2 filters) with <1.75" Outer Diameter (OD) 44mm\1.75" SP-ST200G, AZ-1501, TH-RG-8.5X11, AZ-1032, TH-BP-8.5X11
Camera Lens with 46mm thread 46mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST46MM
Camera Lens with 49mm thread 49mm (thread) TH-RG-8.5X11, AZ-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-8.5X11, AZ-1032, TH-S-2000
Camera Lens with 52mm thread 52mm (thread) TH-RG-8.5X11, AZ-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-8.5X11, AZ-1032, TH-S-2325
Camera Lens with 55mm thread 55mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST55MM
Camera Lens with 58mm thread 58mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST58MM
Camera lens, finder, monocular, binocular (need 2 filters) with <2.4" Outer Diameter (OD) 60mm\2.37" AZ-1504, TH-RG-8.5X11, AZ-1032
Camera Lens with 62mm thread 62mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST62MM
Celestron 9x50 Finder or William optics 7x50 finder 65mm\2.55" AZ-1504, TH-RG-8.5X11, AZ-1032
Camera Lens with 67mm thread 67mm (thread) TH-RG-8.5X11, AZ-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-2750, TH-RG-8.5X11, AZ-1032, SP-ST300BP1, TH-S-2750, **LS-2HW
Camera Lens with 72mm thread 72mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST72MM
Celestron 60, Meade DS-2070AT,DS-60 EC, Orion 70 is suitable, Vixen A70LF 76mm\3.00" SP-ST325G, AZ-1506, TH-RG-8.5X11, AZ-1032, TH-S-3000, **LS-2HW
Camera Lens with 77mm thread 77mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST77MM
Camera Lens with 82mm thread 82mm (thread) TH-RG-8.5X11, AZ-1032, SP-ST82MM
Takahashi FS-60C, some 70mm refractors less than 84mm OD 84mm\3.25 SP-ST350G, AZ-1507, TH-3250, TH-RG-8.5X11, AZ-1032, TH-S-3250, **LS-2HW

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, TH-3500, AZ-1000, AZ-1015, TH-RG-8.5X11, AZ-1032, TH-S-3500, **LS-2HW

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, TH-3750, AZ-1000, AZ-1032, TH-S-3750, **LS-2HW, **BA-HERSCH-V, **BA-HERSCH-P

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, **LS-2HW, **BA-HERSCH-V, **BA-HERSCH-P
Orion, Sky-Watcher, Vixen 80 or 100mm ED 108mm\4.25" AZ-1511, TH-4250, AZ-1003, BA-ASTF-80, TH-S-4250,  **LS-2HW, **BA-HERSCH-V, **BA-HERSCH-P
Orion, Sky-Watcher, Vixen 80 or 100mm ED, Canon 100-400mm L IS I Lens shield 114mm\4.50" AZ-1512, TH-4500, AZ-1003, AZ-1001, BA-ASTF-80, TH-S-4500,  **LS-2HW, **BA-HERSCH-V, **BA-HERSCH-P
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, **LS-2HW
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, TH-5000, BA-ASTF-100, TH-S-5000, **LS-2HW
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, **LS-2HW
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, TH-5750, 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, **LS-2HW
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, **LS-2HW
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, AZ-1016, BA-ASTF-120, BA-ASTF-140, **LS-2HW
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-ST750G, AZ-1520, BA-ASTF-160
C-6, Meade 6" Schmidt-Newtonian, Vixen 150, AP-155 190mm\7.50" TH-RG-7500, BA-ASTF-160, TH-S-7500
152mm Refractors (measure dew shield diameter) 196mm\7.75" AZ-1521, AZ-1014, BA-ASTF-160
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-ST9312GAZ-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-ST950GAZ-1525, AZ-1004, BA-ASTF-200, TH-S-9187
Meade Starfinder 8, Orion 8 DSE, Celestron CPC/EdgeHD 8" 241mm\9.50" SP-ST975GAZ-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, AZ-1011, BA-ASTF-280
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, AZ-1007, BA-ASTF-280
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, TH-S-14375
Meade Starfinder 12.5" 381mm\15.00" SP-ST1525G, AZ-1535
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

 

RED =  Recommended Glass Filters

GREEN = Recommended Film Filters

BLUE = Recommended Polymer Filters

PURPLE = Recommended Off-Axis Filters

** = Recommended Herschel Wedges (*refractors only)