Features: Baader 135mm D-ERF Energy Rejection IR-Cut Dielectric Coated Filter
- Lightweight, hard and scratch-resistant
- Plane-parallel circular disks having both sides optically polished
- Coated using ion-beam systems to keep the heat load on the glass as low as possible
- Features an infrared-reflective coating that prevents the penetration of heat into the telescope tube
- The blocking of IR (heat radiation) holds the D-ERF filter plane-parallel even with longer observation times
- Fine quality raw glass construction to cope with the stresses of solar use while ensuring fantastic images and crystal clear observing
Note: Never use any eyepiece filter for solar observation without objective front filter
Specifications: Baader 135mm D-ERF Energy Rejection IR-Cut Dielectric Coated Filter
- Material: Raw Glass
- Filter Size: 135 mm
- Filter Shape: Round
- Filter Mounted: Unmounted
- Type Of Filter: Energy Rejection
- Single Or Set: Single Filter
- Visual or Imaging: Visual, Imaging
- Filter Usage: IR-Cut, Solar, Specialty, UV-Cut
- AR-Coating: Dielectrically Coated, Planoptically Polished
Kit Contents
- Baader 135mm D-ERF Energy Rejection IR-Cut Dielectric Coated Filter
- Manufacturer's Warranty
- Instruction / User Manual
