Save up to $300 on ZWO AM5 and AM3 mount packages while supplies last!Save up to $300 on ZWO AM5 and AM3 mount packages while supplies last!

 ECLIPSE ORDERS: New orders will not ship in time. Local pickup orders can be ordered until 1pm PT Sat, Apr 6 and picked up by 2pm. 

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  1. Blue Fireball M48x0.75 Female to M56x1 Male Thread Adapter # M-15
    Blue Fireball M48x0.75 Female to M56x1 Male Thread Adapter # M-15
    Our Price: $24.95
    In Stock
    Free US Shipping Over $25
  2. Blue Fireball 2" Nosepiece Adapter with M56x1.0 Male Thread (For Sky-Watcher 0.85x Reducer Lenses) # M-16
    Blue Fireball 2" Nosepiece Adapter with M56x1.0 Male Thread (For Sky-Watcher 0.85x Reducer L...
    Our Price: $39.95
    In Stock
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  3. Blue Fireball M48x0.75 Thread Spacer Ring with 15mm Extension # S-M48-15
    Blue Fireball M48x0.75 Thread Spacer Ring with 15mm Extension # S-M48-15
    Our Price: $20.95
    In Stock
    Free US Shipping Over $25
  4. Blue Fireball Filter Drawer with M48/M42 Threads and Extra Filter Holder - For 2" Mounted Filters # P-22
    Blue Fireball Filter Drawer with M48/M42 Threads and Extra Filter Holder - For 2" Mounted Fi...
    Our Price: $79.95
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  5. Blue Fireball M48x0.75 Thread Spacer Ring with 7.5mm Extension # S-M48-07.5
    Blue Fireball M48x0.75 Thread Spacer Ring with 7.5mm Extension # S-M48-07.5
    Our Price: $17.45
    In Stock
    Free US Shipping Over $25
  6. Blue Fireball M48x0.75 Thread Spacer Ring with 12mm Extension # S-M48-12
    Blue Fireball M48x0.75 Thread Spacer Ring with 12mm Extension # S-M48-12
    Our Price: $19.95
    In Stock
    Free US Shipping Over $25
  7. DayStar Quark to C and T Adapter Bundle # SZ1CT
    DayStar Quark to C and T Adapter Bundle # SZ1CT
    Our Price: $69.00
    Out of Stock
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  8. Blue Fireball ELIM-T 2" Prime Focus Camera Adapter - For Canon EOS # P-11A
    Blue Fireball ELIM-T 2" Prime Focus Camera Adapter - For Canon EOS # P-11A
    Our Price: $54.95
    Out of Stock
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  9. GSO 2" to 1.25" Zero Profile Eyepiece Adapter # FF021
    GSO 2" to 1.25" Zero Profile Eyepiece Adapter # FF021
    Our Price: $23.95
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    Free US Shipping Over $25
  10. Baader Male C-Mount to Female T / T2 Adapter # C-T2 2958520
    Baader Male C-Mount to Female T / T2 Adapter # C-T2 2958520
    Our Price: $53.00
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  11. Baader 2" ClickLock Eyepiece Clamp with M48 Female Thread # CLM48-2 2956248
    Baader 2" ClickLock Eyepiece Clamp with M48 Female Thread # CLM48-2 2956248
    Our Price: $110.00
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  12. William Optics High Precision Copper 48mm Wide T-Ring for Nikon Cameras # YE-TR-BR48-N
    William Optics High Precision Copper 48mm Wide T-Ring for Nikon Cameras # YE-TR-BR48-N
    Our Price: $90.00
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  13. Baader SCT Inverter (SCT-Female to SCT-Female Adapter) # INVERT-2 1508020
    Baader SCT Inverter (SCT-Female to SCT-Female Adapter) # INVERT-2 1508020
    Our Price: $37.00
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  14. BuckeyeStargazer EAF Mounting Bracket for GSO 2" Linear Bearing Focuser
    BuckeyeStargazer EAF Mounting Bracket for GSO 2" Linear Bearing Focuser
    Our Price: $24.00
    In Stock
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  15. Blue Fireball M48x0.75 Thread Spacer Ring with 25mm Extension # S-M48-25
    Blue Fireball M48x0.75 Thread Spacer Ring with 25mm Extension # S-M48-25
    Our Price: $22.95
    In Stock
    Free US Shipping Over $25
  16. Pair of filter adapters for Kasai WideBino28
    Kasai Trading M48 Filter Adapter Pair for Kasai WideBino28 Widefield Binocular # M48FA
    Our Price: $40.00
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  17. Blue Fireball C / CS Mount Spacer Ring with 0.5" Extension # S-CB
    Blue Fireball C / CS Mount Spacer Ring with 0.5" Extension # S-CB
    Our Price: $15.95
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    Free US Shipping Over $25
  18. Baader 2" Safety Kerf Nosepiece with S52 Male Dovetail # TRING-S52/2 2958551
    Baader 2" Safety Kerf Nosepiece with S52 Male Dovetail # TRING-S52/2 2958551
    Our Price: $47.00
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  19. Celestron 2" to 1.25" Twist-Lock Eyepiece Adapter # 93668
    Celestron 2" to 1.25" Twist-Lock Eyepiece Adapter # 93668
    Our Price: $44.95
    Out of Stock
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  20. William Optics 48mm Wide Micro 4/3 T-Ring for Olympus Cameras - Black # TM-MFT-M48
    William Optics 48mm Wide Micro 4/3 T-Ring for Olympus Cameras - Black # TM-MFT-M48
    Our Price: $45.00
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  21. Blue Fireball Lock Ring / Orientation Control Adapter: For 2" Filter Threads (M48x0.75) # L-02
    Blue Fireball Lock Ring / Orientation Control Adapter: For 2" Filter Threads (M48x0.75) # L-02
    Our Price: $14.95
    In Stock
    Free US Shipping Over $25
  22. Canon EOS DSLR T-Ring with Clear Filter
    Baader Canon EOS DSLR T-Ring with Clear Filter # DSLRT-CLR 2958550C
    Our Price: $143.00
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  23. Blue Fireball 2" Nosepiece / M48 Female / T Thread Female to C / CS Mount Male Adapter # V-03
    Blue Fireball 2" Nosepiece / M48 Female / T Thread Female to C / CS Mount Male Adapter # V-03
    Our Price: $29.95
    Out of Stock
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  24. Blue Fireball M48x0.75 Thread Spacer Ring with 35mm Extension # S-M48-35
    Blue Fireball M48x0.75 Thread Spacer Ring with 35mm Extension # S-M48-35
    Our Price: $24.95
    In Stock
    Free US Shipping Over $25
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  1. Adapter Specifications M48 (2" Filter) Thread - Female Remove This Item
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