Threaded Mount
- Designed for lenses with filter threads, a variety of filter types and stock threaded sizes are available: M13.25-M105
- Larger sizes, 62mm to 105mm, are made to order and are not returnable
- Custom thread sizes are available upon request
- Black anodized aluminum rings
- Rotating mounts with locking thumb screws are available upon request and come standard with Polarizing Filters
How to Order
To order a filter with a threaded mount, first select a filter (e.g. BP470) and add the mount size (e.g. M27) to build your part number (e.g. BP470-27). For help building your filter part number, visit an individual filter page.
All dimensions below indicated in mm
| Mount Size Thread Dia x Pitch |
Part Suffix |
Outer Diameter |
Clear Aperture |
|---|---|---|---|
| M13.25 x P0.5 | -13.25 | 14.4 | 10.6 |
| M22.5 x P0.5 | -22.5 | 24 | 18.5 |
| 25.4® C-Mount | -25.4 | 25.2 | 19.5 |
| M25.5 x P0.5 | -25.5 | 27.5 | 21 |
| M27 x P0.5 | -27 | 29 | 22.5 |
| M30.5 x P0.5 | -30.5 | 32.5 | 25.5 |
| M34 x P0.5 | -34 | 36 | 29 |
| M35.5 x P0.5 | -35.5 | 37.5 | 30.5 |
| M37 x P0.75 | -37 | 39 | 31.9 |
| M37.5 x P0.5 | -37.5 | 39.5 | 32.5 |
| M39 x P0.5 | -39 | 41 | 34 |
| M40.5 x P0.5 | -40.5 | 42.5 | 35.5 |
| M43 x P0.75 | -43 | 45 | 38 |
| M46 x P0.75 | -46 | 48 | 41 |
| M48 x P0.75 | -48 | 50 | 43 |
| M49 x P0.75 | -49 | 51 | 44 |
| M52 x P0.75 | -52 | 54 | 47 |
| M55 x P0.75 | -55 | 57 | 50 |
| M58 x P0.75 | -58 | 60 | 52.9 |
| M62 x P0.75 | -62 | 64 | 57.1 |
| M67 x P0.75 | -67 | 70 | 61.8 |
| M72 x P0.75 | -72 | 75 | 66.9 |
| M77 x P0.75 | -77 | 80 | 71.9 |
| M82 x P0.75 | -82 | 85 | 76.8 |
| M86 x P1.0 | -86 | 89 | 80.8 |
| M95 x P1.0 | -95 | 98.2 | 89.9 |
| M105 x P1.0 | -105 | 109.8 | 100 |
