Omegon UV/IR Cut-Off Filter 1.25″

Omegon UV/IR Cut-Off Filter 1.25″ is an indispensable accessory for astrophotography with color cameras without built-in UV/IR blocking. Many optical systems - especially refractors and camera lenses - allow ultraviolet (UV) and infrared (IR) light to pass through unobstructed. But these wavelengths are not focused on the same plane as visible light, leading to blur, color shifts or blurry stars.

This filter blocks both UV light (below ~400 nm) and IR radiation (above ~700 nm), while allowing the full visible spectrum to pass through. This allows you to maintain true-to-life colors, sharper details and better focus in your images. The filter is therefore ideal for use with CCD and CMOS cameras, especially when photographing with APO refractors or fast lenses.

The 1.25″ version is compatible with any standard eyepiece, camera adapter or filter wheel. The optical glass is multi-coated for maximum transmission in the usable range and minimal reflections.

Advantages
✓ Blocks both UV and IR outside the visible spectrum
✓ Improves sharpness and focus in color cameras
✓ Preserves color fidelity in astrophotos
✓ Reduces halos and color shifts around bright stars
✓ Fits all 1.25″ accessories and filter wheels

Specifications

• Type: UV/IR Cut-off filter
• Connection: 1.25 inches (31.75 mm)
• Transmission: Passage from 400-700 nm, blocking beyond that
• Mounting: Aluminum, black anodized
• Coating: Multiple anti-reflective
• Application: Astrophotography with color cameras and refractors
• Not suitable for: Narrowband use or emission line isolation.

Application
The Omegon UV/IR Cut-Off Filter 1.25″ is designed for photographers working with a color camera or DSLR in combination with lenses or telescopes prone to chromatic aberrations. Its complete blocking of unwanted light outside the visible spectrum allows you to deliver sharper, color-fidelity results - a must-have for any serious astrophotographer.