Explore Scientific N21 1.25" Lens Filter

This filter is suitable for detailed observations of the planets. The cylinder diameter is 1.25". The filter significantly enhances the detection of dark areas on the planet Mars. The cloud details on Saturn and Jupiter are also more visible through the filter. Color filters slightly dim the light reaching the eye or camera sensor, reducing harsh transitions and providing images with greater contrast, revealing more details.

• Material: High-quality optical glass
• Filter glass: Perfectly parallel
• Optical surfaces: With anti-reflective coatings
• Filter body: Black anodized aluminum
• Filter thread: On both ends (female/male)
• Allows: Use of multiple filters

Specifications:

• Type: Color filter
• Optical material: Optical glass
• Optical coating: Multi-coating, anti-reflective
• Body: Aluminum
• Eyepiece tube diameter: 1.25” (31.7mm)