Refractor 125

JTW Astronomy athermalised apochromatic refractor, model
125 mm f/6 athermalised apochromatic refractor, made in-house
Price (Excl.VAT)

4999

Aperture (mm)125
Recommended mount typeGEM
Tube tubeClosed
Focal length (mm)875
Tube length (transport)1025
Tube length (operating)1225
OTA Weight (kg)7
Back focus150
Optional back focus reducer100
Focal ratio F/7
Fully corrected imaging circle (mm)45
Lens CoatingsBBAR and edge
FocuserDual speed JTW Rhino
Clear aperture (mm)75
Tube constructionAthermalised full metal
Optical surface quality (Strehl, PTV)0.97, 1/10
BoltingA4 Stainless steel
Metal protectionDual
Surface treatmentAluminium – 20 micron hard-coat anodising
PaintExterior grade powdercoat (environmentally friendly)
Anti dew systemIncluded