Eyepiece Projection Unit OPFA II with 50.8 mm Nosepiece
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    • Eyepiece Projection Unit OPFA II with 50.8 mm Nosepiece

    Eyepiece Projection Unit OPFA II with 50.8 mm Nosepiece

    73.00
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    Eyepiece Projection Unit OPFA II with 50.8 mm Nosepiece

    Baader OPFA II eyepiece projection unit for astrophotography with DSLR/SLR cameras with removable lens. Features a 50.8 mm safety nosepiece, full T-2 modular system, sliding focuser, and two 40 mm extension tubes. Rigid, light-proof assembly for high magnification projection.

    Quantity
    In stock at the supplier. For delivery time and for shipping outside Switzerland, please contact us.

    In stock at the supplier. For delivery time and for shipping outside Switzerland, please contact us.

    Eyepiece Projection Unit OPFA II with 50.8 mm Nosepiece

    Description
    The OPFA II is a complete and rigid eyepiece projection system developed by Baader Planetarium, specifically designed for astrophotography with DSLR or film cameras that have a removable lens. This version includes a 50.8 mm safety nosepiece for 2" focusers and an integrated 2" filter thread, ensuring mechanical stability and optical flexibility.

    At the heart of the system is the OPFA IV projection base, combined with two 40 mm T-2 extension tubes and a sliding focuser featuring a locking ring. A projection eyepiece (not included) is inserted into the assembly, and the exact projection distance between the eyepiece and camera sensor can be finely tuned for optimal magnification.

    The rear T-2 thread connects to your camera using a camera-specific T-ring (not included). This modularity allows for significant flexibility in projection setups, and the system can be extended further using additional Astro T-2 components. The entire configuration is built to be vibration-free and completely light-tight, even when used with long optical trains or CCD setups.

    OPFA II is suitable for classic eyepiece projection with lens-removed DSLR cameras or for afocal setups when a fixed-lens camera is used. In afocal configurations, Baader recommends using the ADPS system.

    Technical specifications

    • Type: Modular eyepiece projection system

    • Recommended use: Planetary, lunar, solar imaging

    • Compatible cameras: DSLR/SLR with removable lens

    • Telescope connection: 50.8 mm nosepiece with filter thread and safety groove

    • Camera connection: T-2 thread (M42 x 0.75)

    • Optical path length: Variable depending on extension configuration

    • Focuser: Sliding with lock ring for fine adjustment

    • Mechanical features: Bolt-tight, wobble-free, light-sealed system

    • Clear aperture: 38 mm

    • Outer diameter: 60 mm

    • Weight: 0.20 kg

    • Threads included: M42 x 0.75 (camera side), M48, M34, M28.5 (internal)

    • Accepted eyepieces: Up to 38 mm diameter (not included)

    • Requires T-2 ring for camera (not included)

    • Manufacturer SKU: 2458142

    • EAN: 4047825010148

    • Brand: Baader Planetarium (Germany)

    Oculaire projection OPFA II 2"

    Specific References

    UPC
    2458142