Baader Planetarium DT-4 extension sleeve

Baader Planetarium DT-4 extension sleeve 31.8 mm (Ø 1 ¼ ")

Features:

• 12mm to 16mm Optical length
• Consists of T-2/T-2 inverter ring; T-2 Conversion ring and T-2 locking ring

For ocular sockets (length 18mm). An off axis systems or folding mirror approaches is often the problem that the receptacles normal eyepieces are just 1-2cm too short to adjust the sharpness level properly.
This extension sleeve has both sides the filter thread for 1 ¼ "eyepieces, and to be done by Screw in (almost) every 1 ¼ "eyepiece. Several 1 ¼ "tubes are combined.

The inner diameter is prepared to accommodate the lenses of Baader Planetarium Glaswegkorrektoren 1:1.25 and 1:1.7

Please enquire when stock is indicated as zero.  Availability is typically witin 2 months - please enquire.