Baader 180mm D-ERF Energy Rejection IR-Cut Dielectric Coated Filter
Features: Baader 180mm 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 180mm D-ERF Energy Rejection IR-Cut Dielectric Coated Filter
Material: Raw Glass
Filter Size: 180 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 180mm D-ERF Energy Rejection IR-Cut Dielectric Coated Filter
Manufacturer's Warranty
Instruction / User Manual