Name: Seymour Helios Solar Glass Telescope Filter
Rating: 5.00 (3 reviews)

Seymour Helios Solar Glass Telescope Filter

This premium solar filter is safe to photograph or view the sun when mounted on a telescope, view finder, spotting scope, etc. It is rated ND5 so 99.999% of the sunlight is blocked. The aperture is made of a high quality, reflective coated, Helios Solar Glass®, and mounted into an aluminum outer cell. The filter slips over the sky end of your optical tube. It is secured and centered to the optical tube with thumb screw(s) and felt tabs.

Technical Specifications

Suitability chart

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).

2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).
2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).
2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).
3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).
3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).
3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).
3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).
4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).
4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).
4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).
4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).
5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).
5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).
5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).
5.75" (146mm). Fits Optical Tube Diameter 5 3/8" (137mm) to 5 5/8" (143mm).
6" (152mm). Fits Optical Tube Diameter 5 5/8" (144mm) to 5 7/8" (149mm).
6.25" (158mm). Fits Optical Tube Diameter 5 7/8" (150mm) to 6 1/8" (156mm).
6.5" (165mm). Fits Optical Tube Diameter 6 1/8" (157mm) to 6 3/8" (162mm).
6.75" (171mm). Fits Optical Tube Diameter 6 3/8" (163mm) to 6 5/8" (168mm).
7" (178mm). Fits Optical Tube Diameter 6 5/8" (169mm) to 6 7/8" (174mm).
7.25" (184mm). Fits Optical Tube Diameter 6 7/8" (175mm) to 7 1/8" (180mm).
7.5" (190mm). Fits Optical Tube Diameter 7 1/8" (181mm) to 7 3/8" (187mm).
8" (203mm). Fits Optical Tube Diameter 7 5/8" (193mm) to 7 7/8" (202mm).
8.376" (212mm). Fits Optical Tube Diameter 8" (203mm) to 8 1/4" (210mm).
8.377" (212mm). Fits Optical Tube Diameter 8" (203mm) to 8 1/4" (210mm).
8.75" (222mm). Fits Optical Tube Diameter 8 3/8" (213mm) to 8 5/8" (219mm).
9.25" (235mm). Fits Optical Tube Diameter 8 3/4" (222mm) to 9 1/8" (232mm).
9.5" (241mm). Fits Optical Tube Diameter 9 1/8" (232mm) to 9 3/8" (238mm).
9.75" (247mm). Fits Optical Tube Diameter 9 3/8" (239mm) to 9 5/8" (244mm).
10" (254mm). Fits Optical Tube Diameter 9 5/8" (245mm) to 9 7/8" (251mm).
10.5" (266mm). Fits Optical Tube Diameter 10 1/8" (257mm) to 10 3/8" (264mm).
10.75" (273mm). Fits Optical Tube Diameter 10 3/8" (265mm) to 10 5/8" (270mm).
11.5" (293mm). Fits Optical Tube Diameter 11 1/8" (283mm) to 11 3/8" (289mm).
12" (305mm). Fits Optical Tube Diameter 11 5/8" (295mm) to 11 7/8" (302mm).
12.5" (317mm). Fits Optical Tube Diameter 12 1/8" (308mm) to 12 3/8" (314mm).
13" (330mm). Fits Optical Tube Diameter 12 5/8" (321mm) to 12 7/8" (327mm).
13.75" (349mm). Fits Optical Tube Diameter 13 3/8" (340mm) to 13 5/8" (346mm).
14.5" (368mm). Fits Optical Tube Diameter 14 1/8" (358mm) to 14 3/8" (365mm).
15.25" (387mm). Fits Optical Tube Diameter 14 7/8" (378mm) to 15 1/8" (384mm).
15.75" (400mm). Fits Optical Tube Diameter 15 3/8" (390mm) to 15 5/8" (396mm).

16" (406mm). Fits Optical Tube Diameter 15 5/8" (397mm) to 15 7/8" (403mm).

In the Box

Helios Solar Glass Telescope Filter, at selected size
Screws (the amount depend on the model size)
Felt pads

Manual & Warranty

Seymour Solar's FAQ
How do I find the right size filter to order?

5 stars: 3 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Très satisfait

Très satisfait, optic très poifessionel,on voit les contour des tâches noirs solaire .j ai comparer avec des photos de revue populaire comme celle de ciel et espace ,et c est identique avec une bonne caméra astro .

Wow! Just WOW!

First time ever using a solar filter. It was a beautiful site! To look at our Sun like that was amazing!
No regrets

Fitted perfectly to my Sk-Watcher Classic 200P. Quality is top notch.

Seymour Helios Solar Glass Telescope Filter

Seymour Helios Solar Glass Telescope Filter

Technical Specifications

In the Box

Manual & Warranty

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