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Film Solar Filter 4.25'' (ST425BP1) Film Solar Filter Telescopes that fit this Filter size: Meade ETX 90; Celestron: NexStar 60/80/80GT, FirstScope 90EQ


Film Solar Filter 4.25'' (ST425BP1) Film Solar Filter Telescopes that fit this Filter size: Meade ETX 90; Celestron: NexStar 60/80/80GT, FirstScope 90EQ by Spectrum Telescope at C Starr. MPN: ST425BP1. Hurry! Limited time offer. Offer valid only while supplies last. How do I determine the size of filter to order? Spectrum Telescope filters slip over the sky end of the optical tube of the telescope. To get the


Product Description

How do I determine the size of filter to order? Spectrum Telescope filters slip over the sky end of the optical tube of the telescope. To get the proper fit, measure the outer diameter by using a caliper, ruler, or tape measure. Measure the widest distance of the telescope end starting from the exterior of the casing, across the center and to the exterior part of the casing of the other side. After you have your measurements, you should order a size larger than what you measured. This is because your measurement is being compared with the solar filter ID (inside diameter). For instance: If you measure 4″ across the optical tube end needs a 4.25" size solar filter. This will make it just a little bigger than the measurement you took. Your O.D. Measurement: 3 7/8" (98mm) to 4 1/8" (105mm)

Features & Highlights

  • Your O.D. Measurement: 3 7/8" (98mm) to 4 1/8" (105mm)
  • Telescopes that fit this Filter size: Meade ETX 90; Celestron: NexStar 60/80/80GT, FirstScope 90EQ; Orion: StarMax 90, Apex 90; StellarVue: NightHawk APLANAT, NIghtHawk Next Generation (with dew shield), SV809D (with dew shield); Questar 3.5; Williams Optics: ZS80 II ED, Megrez 80
  • View the sun with your own eyes. See sun spots, solar eclipses, Eclipse viewing
  • Total Solar Eclipse April 8, 2024 in the USA.
  • I have been building and developing safe solar filters for over 15 years.

Additional Information

Manufacturer:Spectrum Telescope
Brand:Spectrum Telescope
Model:ST425BP1
Part Number:ST425BP1
Publisher:Spectrum Telescope
Studio:Spectrum Telescope
MPN:ST425BP1
UPC:751369823242
EAN:0751369823242

Film Solar Filter 4.25'' (ST425BP1) Film Solar Filter Telescopes that fit this Filter size: Meade ETX 90; Celestron: NexStar 60/80/80GT, FirstScope 90EQ by Spectrum Telescope

Buy Now:
Film Solar Filter 4.25'' (ST425BP1) Film Solar Filter Telescopes that fit this Filter size: Meade ETX 90; Celestron: NexStar 60/80/80GT, FirstScope 90EQ

Brand: Spectrum Telescope
Condition: New
Lead Time: 1 - 2 Business Days
Availability: In Stock
$57.00


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