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    • Adapters with specific outer diameter

    Adapters with a specified outside diameter for matte boxes, eyepiece ports and other slip-in connections.

    Browse by outside diameter

    Choose the outside diameter of the adapter that your equipment accepts. Check insertion length and the method of securing it before ordering.

    Use the Front Side and Rear Side filters in the product listing to narrow down both connections.

    View as Grid List

    Items 1-12 of 118

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    Outer Diameter: selection guide

    Matte box connections

    Match the adapter outside diameter to the receiving matte box connection. Check clearance, engagement length and the connection on the lens side.

    Slip-in connections

    For telescope and microscope ports, match the receiving bore and confirm the required insertion depth. The 1.25-inch and 2-inch categories use nominal eyepiece barrel sizes.

    Browse all adapter types · Request a custom adapter

    Shop By
    Shopping Options
    Adapter Front Side
    1. 1.25" telescope port 2items
    2. 2″ telescope port 9items
    3. 3" telescope port 2items
    4. 23mm 1 item
    5. 41.5mm clamp 1 item
    6. 75mm 1 item
    7. 80mm clamp 1 item
    8. 80mm diameter 3items
    9. 95mm diameter 3items
    10. 114mm diameter 13items
    11. 115mm diameter 1 item
    12. 134mm diameter 5items
    13. 143mm diameter 6items
    14. 165mm diameter 1 item
    15. M42x1 4items
    16. M72x0.75 1 item
    17. M77x0.75 32items
    18. M86x0.75 5items
    19. M86x1 21items
    20. M95x0.75 3items
    21. M95x1 2items
    22. SCT 2″ thread 1 item
    Adapter Rear Side
    1. 1.25″ eyepiece holder 2items
    2. 2″ eyepiece holder 2items
    3. 38mm outer diameter 1 item
    4. 51mm clamp 1 item
    5. 57mm clamp 1 item
    6. 58mm clamp 1 item
    7. 62mm clamp 1 item
    8. 62.5mm clamp 2items
    9. 65mm clamp 1 item
    10. 67mm clamp 1 item
    11. 70mm clamp 3items
    12. 73mm clamp 2items
    13. 75mm clamp 1 item
    14. 76mm clamp 1 item
    15. 83.5mm clamp 1 item
    16. 86.5mm clamp 1 item
    17. 89mm clamp 1 item
    18. 91mm clamp 1 item
    19. 99mm clamp 3items
    20. 107mm clamp 1 item
    21. 115mm clamp 1 item
    22. 121mm clamp 1 item
    23. 132mm clamp 1 item
    24. 134.4mm clamp 1 item
    25. 100mm dovetail 1 item
    26. C-mount 1 item
    27. Clamp for LOMO SFA 35mm 4items
    28. Clamp for LOMO SFA 50/75/80mm 1 item
    29. M26x0.75 1 item
    30. M28.5x0.6 2items
    31. M29x0.5 1 item
    32. M35x0.5 1 item
    33. M35.5x0.5 1 item
    34. M36.4x1 1 item
    35. M40x0.75 1 item
    36. M42x0.75 (T2) 1 item
    37. M45x0.75 1 item
    38. M47x0.75 1 item
    39. M47.5x0.75 1 item
    40. M48x0.75 1 item
    41. M49x0.75 1 item
    42. M50.8x0.5 1 item
    43. M52x0.75 2items
    44. M55x0.75 1 item
    45. M56x0.5 1 item
    46. M60x0.75 2items
    47. M62x0.75 2items
    48. M65x0.75 1 item
    49. M66x0.75 1 item
    50. M67x0.75 3items
    51. M72x0.75 2items
    52. M76x0.75 1 item
    53. M77x0.75 7items
    54. M82x0.75 9items
    55. M85x0.75 3items
    56. M85x1 3items
    57. M86x0.75 5items
    58. M92x0.75 1 item
    59. M95x0.75 4items
    60. M95x1 2items
    61. M96x0.75 1 item
    62. M105x0.75 1 item
    63. M105x1 1 item
    64. M108.5x0.75 1 item
    65. M115x0.75 3items
    66. Mamiya 645 1 item
    67. Nikon F 2items
    68. Pentax 67 2items
    69. Other front clamp 2items
    Source
    1. Belarus 118items
    2. USA 10items
    3. Austria 5items