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The Baader M68 to 2 inch SCT adapter converts an M68 female connection into a 2 inch SCT female thread. With an optical length of only 5 mm, it provides a compact connection within the optical train.
The Baader Planetarium M68a to 2 inch SCTi adapter is a reducing adapter designed to convert an M68 female connection into a 2 inch SCT female connection.
It belongs to the Baader Planetarium M68 accessory system and allows equipment using the 2 inch SCT standard to be integrated into an optical train originally equipped with an M68 female connection.
On the telescope or lens side, the adapter features an M68 x 1 male thread. This screws directly into a compatible M68 female connection.
On the eyepiece or camera side, it provides a 2 inch SCT female thread with a nominal diameter of 50.8 mm. Baader identifies this connection as a 2 inch UNFI female thread.
The adapter has an optical length of only 5 mm. This compact design allows conversion between the two mechanical standards while consuming very little backfocus, which is particularly useful in astrophotography configurations where precise optical spacing is important.
Its clear aperture is 50 mm, maintaining a large light passage through the optical train.
The adapter has an outer diameter of 65.5 mm and a net weight of only 0.04 kg.
According to Baader Planetarium specifications, this adapter belongs to the M68 System and is compatible with corresponding Baader Planetarium and Zeiss connections.
With its short optical length, the Baader M68a to SCTi adapter provides a straightforward solution for converting an M68 female thread into a 2 inch SCT female thread without unnecessarily increasing the length of the optical train.
• Manufacturer: Baader Planetarium
• Product: M68a to 2 inch SCTi adapter
• Manufacturer SKU: 2458232
• EAN code: 4047825035356
• Adapter family: Baader M68 System
• Type: Reducing adapter
• Function: Converts M68 female to 2 inch SCT female
• Telescope-side connection: M68 x 1 male thread
• Eyepiece or camera-side connection: 2 inch SCT female thread
• Baader designation: 2 inch UNFI female thread
• Nominal SCT-side diameter: 50.8 mm
• Clear aperture: 50 mm
• Optical length: 5 mm
• Outer diameter: 65.5 mm
• Net weight: 0.04 kg
• Listed compatibility: Baader Planetarium
• Listed compatibility: Zeiss
• Application: Adapting an M68 female connection to a 2 inch SCT female thread
Specific References