The #19801 M90 mount allows Optec equipment with an OPTEC-3600 receiver such as the TCF-S3 and IFW-3 to be connected to equipment that presents an M90x1mm thread connection.
- Outside Diameter: 3.95" (100.3mm)
- Overall Height: 0.86" (21.9mm)
- Clear Aperture: 3.05" (77.5mm)
- Weight: 3.84 oz (108.86 g)
- Back-focus Usage: 0.5" (12.8mm)
- Telescope Side Connection: M90X1mm Thread
- Camera Side Connection:: OPTEC-3600 Dovetail
- TCF-S3 series focuser,
- Pyxis 3" rotator,
- Perseus 4-port instrument selector,
- Any OPTEC-3600 receiver.