Baader Semi APO Filter

£70.00
SKU 2458398

Availability: Immediate Dispatch

  • Two filters made into one for maximum brightness
  • Combines Fringe-Killer with Moon & Skyglow for Semi-APO contrast with refractors
  • Non-ageing sealed coating edges
Description

The Baader Semi-Apo Filter is a combination of their popular "Neodymium Moon & Skyglow" and "Fringe Killer" Filters. It was developed after repeated reports of customers who were combining (stacking) the Baader "Neodymium Moon and Skyglow" filter with their Fringe Killer filters. The result was amazingly colour-corrected images to achromatic refractors. However, by stacking individual filters did produce reflections.

The Baader Semi-APO filter is a single, reflection-free combination of the Moon & Skyglow with a stronger coating of the Fringe killer with an IR blocker. The filter gives a virtually colour-neutral image without the blue and red halos (violet fringing), and an increase to image contrast.

Specifications
SKU (#) 2458398 (1.25") / 2458399 (2")
EAN CODE 4047825009340
WEIGHT (KG) 0.057
TRANSMISSION RANGE multiple bands (see spectral image)
FILTER THICKNESS (WITHOUT CELL) 1 mm
AR-COATING Phantom Coating® Group, planeoptically polished
FILTER SIZE 1 25 inch
FILTER USAGE CCD, Color Correction, IR-Cut
FILTER MOUNTED Mounted (LPFC 6mm)
TYPE OF FILTER Bandpass
SINGLE OR SET? Single Filter
FILTER SHAPE round