Baader M48 fine tuning ring set made of aluminum (0.3 / 0.5 / 1mm) 2"

Set consisting of M48 fine tuning rings in the thicknesses 0.3mm (black), 0.5mm (red), 1mm (gold) made of aluminum
    Very thin intermediate rings for fine tuning in the M48 eyepiece projection
    Insert rings with M48 diameter without thread
    Fit between any M48 screw connection, corresponds to approx. 2/5 (0.3mm), 2/3 (0.5mm) or 1 1/3 (1mm) thread turn. The thread revolution information may vary slightly.
    Prevents an M48 screw clamp from getting stuck

 

    MANUFACTURER Baader Planetarium
    ITEM NUMBER (#) 2457915
    EAN CODE 4047825039675
    NET WEIGHT (KG) 0.002
    OPTICAL LENGTH (MM) 0.3mm (black), 0.5mm (red), 1mm (gold)
    INTERNAL DIAMETER / FREE OPENING (MM) 48
    OUTSIDE DIAMETER (MM) 52
    INTERNAL CONNECTION (EYECULAR/CAMERA SIDE) M48
    INTERNAL CONNECTION (TELESCOPIC SIDE) M48
    ADAPTER TYPE Extension
    ADAPTER FAMILY M48 system