Skip to product information
1 of 2

Explore Scientific

Explore Scientific Variable Polarizing Filter 2" — Reduce Glare on the Moon and Bright Planets | Telescope Wolves

Explore Scientific Variable Polarizing Filter 2" — Reduce Glare on the Moon and Bright Planets | Telescope Wolves

Regular price $145.00
Regular price $179.99 Sale price $145.00
Sale Sold out
Shipping calculated at checkout.
Quantity

The Explore Scientific Variable Polarizing Filter is a 2-inch telescope filter that lets you dial in exactly how much light reaches your eye — ideal for taming the glare of the Moon and bright planets. Two stacked polarizing elements rotate against each other to continuously adjust brightness, so you can fine-tune the view for the most comfortable, detailed image.

Who it's for

Lunar and planetary observers who want adjustable glare control in a single filter, rather than a fixed-density Moon filter. New to filters? See our guide to the best telescope filters for beginners.

Key features

  • Continuously variable brightness — rotate to set transmission from roughly 1% to 40%
  • Tames glare on the Moon and bright planets for more comfortable, higher-contrast views
  • Standard 2" threaded cell — fits 2" eyepieces and diagonals
  • No color shift — neutral dimming preserves natural tones

Specifications

Type Variable polarizing (adjustable brightness) filter
Transmission range ~1%–40% (adjustable)
Fitting 2" threaded
SKU 310250

Frequently asked questions

How is this better than a fixed Moon filter?
A fixed neutral density filter gives one brightness level; this one lets you adjust the dimming continuously to match the Moon's phase, your telescope's aperture, and your comfort.

Does it fit 1.25" eyepieces?
This is the 2" version, for 2" eyepieces and diagonals. Use a 2"-to-1.25" adapter if needed, or choose a 1.25" filter for 1.25" eyepieces.

Can I use it on planets?
Yes — reducing glare on bright Venus and Jupiter can reveal more subtle detail.

View full details

Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
Most orders ship within 5 business days. You'll receive tracking information within 24 hours of your order leaving the warehouse. For full details, visit our Shipping Policy.
Orders cancelled after 48 hours are subject to a $20 administration fee. If your order has shipped, you are responsible for return shipping costs. Refunds are issued to the original payment method. See our full Refund Policy for details.
Yes! If you find a lower price at another authorized online retailer within 6 months of your purchase, we'll refund the difference. Learn more on our Price Match Guarantee page.
All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
Please inspect your package on arrival and note any damage when signing for delivery. Send photos to info@telescopewolves.com and we'll process a claim on your behalf.
Absolutely. Our team is available Monday to Friday, 9am–5pm EST. The best way to reach us is by live chat (in the bottom right hand corner) or by email at info@telescopewolves.com. You can also visit our Contact Us Page.