Optical Vision 1.25 Inch Variable Polarising Filter for Telescope

Optical Vision 1.25" Variable Polarising Filter – Adjustable Light Control for Lunar and Planetary Viewing

Enhance your stargazing experience with the Optical Vision 1.25" Variable Polarising Filter, a precision optical accessory designed to give you full control over brightness and contrast when observing the Moon, planets, and bright deep-sky objects. Crafted from high-quality anodised aluminium and optical-grade glass, this filter helps reduce glare, improve contrast, and reveal finer details—without altering the natural colour of the object you're viewing.

Key Features

• Adjustable Light Transmission – Varies from 40% to just 1%, allowing you to fine-tune brightness

• Improves Contrast and Reduces Glare – Ideal for lunar and planetary observation

• Preserves Natural Colour – Does not distort object colour, maintaining a true visual experience

• Prevents Eye Fatigue – Reduces strain during extended observation sessions and helps retain night vision

• Rotatable Design – Two-element filter system allows for easy brightness adjustment by rotating one element

• High-Quality Construction – Anodised aluminium housing and precision optical glass

• 1.25” Barrel Size – Compatible with most standard telescope eyepieces

• Versatile Use – Can also be used during the day to reduce reflections and glare from water, glass, and other reflective surfaces

Dual-Use Versatility

Each unit comprises two polarising filters, one of which is rotatable to adjust light transmission to your exact preference. In addition to astronomical use, the filters can be separated and used individually for daytime terrestrial applications, such as cutting glare from lakes, oceans, or reflective windows.

Perfect for Lunar and Bright Object Observing

When observing extremely bright objects like the Moon or Venus, this filter allows you to reduce overwhelming light levels, enhancing contrast and surface detail without causing eye discomfort. The adjustable design also makes it ideal for transitioning between objects of varying brightness without having to swap filters.

In Summary

The Optical Vision 1.25" Variable Polarising Filter is an essential addition to any astronomer’s kit—offering flexibility, comfort, and enhanced viewing clarity in a durable, high-quality package. Whether you're studying lunar craters or scanning daylight landscapes, this filter provides superior control over light and image quality.