M48 Extension Ring (2″) – 28mm

Aluminium Extension Tube 2″ with double sided 2″ filter thread – length 28mm
The extension tube is simply screwed into the M48 filter thread from 2″ eyepieces or 2″ adapters and therefore will extend the barrel. Therefore the fitting accuracy of an adapter can be greatly improved.

These tubes are also important for astrophotography when the correct distance between corrector and camera sensor is required. In this case, just a few millimeters can be critical.

Specs:

• Optical path: 28mm
• Inner diameter / clear aperture: 45mm
• Outer diameter: 2″ (50.8mm)
• Internal connector (telescope side): Thread, M48x0.75, length 3 mm
• External connector (both sides): Barrel, 2″ (50.8 mm)
• External connector (ocular/camera side): Thread, M48x0.75
• Material: Aluminum, black anodized
• Weight (kg): 0.052

Whats included:

1. Extension tube