M52 x 0.75-Threaded Optical Component Adapters
This page contains all of our Optical Component Thread Adapters that feature M52 x 0.75 threading. Adapters with two sets of internal or external threads are available, as well as an adapter that has both internal and external threads.
These M52 x 0.75 adapters are a subset of our entire line of optical component thread adapters. To view our entire line, please see our Interactive Adapters Selection Guide.
| Item # |
Typical Application |
External Threads |
Internal Threads |
| M52A1 |
|
Couple Two Camera Lenses |
M52 x 0.75 |
- |
| SM2A52 |
|
Mount a Camera Lens to a SM2 Lens Tube |
M52 x 0.75 |
SM2 (2.035"-40) |
| SM2A53 |
|
Mount a Camera Body to a SM2 Lens Tube |
SM2 (2.035"-40) |
M52 x 0.75 |
Thorlabs' Threading Specifications
Thorlabs' lens tubes utilize a series of non-standard threadings. Threading specifications are given below for our SM threadings utilized in our lens tube and cage system components so that you can machine mating components to suit your application. We also offer products with C-Mount and RMS threadings, and the specifications for these threadings are also given below. Please note that other manufacturers may have different tolerances for these threads. For other thread specifications that are not listed here, please contact Tech Support.
| SM05 Threading: Ø1/2" Lens Tubes, 16 mm Cage Systems |
| External Thread, 0.535"-40.0, UNS-2A |
Internal Thread, 0.535"-40.0, UNS-2B |
| Max Major Diameter |
0.5340" |
Min Major Diameter |
0.5350" |
| Min Major Diameter |
0.5289" |
Min Pitch Diameter |
0.5188" |
| Max Pitch Diameter |
0.5178" |
Max Pitch Diameter |
0.5230" |
| Min Pitch Diameter |
0.5146" |
Min Minor Diameter (and 83.3% of thread) |
0.508" |
| Max Minor Diameter |
0.5069" |
Max Minor Diameter (and 64.9% of thread) |
0.514" |
| RMS Threading: Objective, Scan, and Tube Lenses |
| External Thread, 0.800"-36.0, UNS-2A |
Internal Thread, 0.800"-36.0, UNS-2B |
| Max Major Diameter |
0.7989" |
Min Major Diameter |
0.8000" |
| Min Major Diameter |
0.7934" |
Min Pitch Diameter |
0.7820" |
| Max Pitch Diameter |
0.7809" |
Max Pitch Diameter |
0.7866" |
| Min Pitch Diameter |
0.7774" |
Min Minor Diameter (and 83.3% of thread) |
0.770" |
| Max Minor Diameter |
0.7688" |
Max Minor Diameter (and 64.9% of thread) |
0.777" |
| C-Mount Threading: Machine Vision Lenses, CCD/CMOS Cameras |
| External Thread, 1.000"-32.0, UN-2A |
Internal Thread, 1.000"-32.0, UN-2B |
| Max Major Diameter |
0.9989" |
Min Major Diameter |
1.0000" |
| Min Major Diameter |
0.9929" |
Min Pitch Diameter |
0.9797" |
| Max Pitch Diameter |
0.9786" |
Max Pitch Diameter |
0.9846" |
| Min Pitch Diameter |
0.9748" |
Min Minor Diameter (and 83.3% of thread) |
0.966" |
| Max Minor Diameter |
0.9651" |
Max Minor Diameter (and 64.9% of thread) |
0.974" |
| SM1 Threading: Ø1" Lens Tubes, 30 mm Cage Systems |
| External Thread, 1.035"-40.0, UNS-2A |
Internal Thread, 1.035"-40.0, UNS-2B |
| Max Major Diameter |
1.0339" |
Min Major Diameter |
1.0350" |
| Min Major Diameter |
1.0288" |
Min Pitch Diameter |
1.0188" |
| Max Pitch Diameter |
1.0177" |
Max Pitch Diameter |
1.0234" |
| Min Pitch Diameter |
1.0142" |
Min Minor Diameter (and 83.3% of thread) |
1.008" |
| Max Minor Diameter |
1.0068" |
Max Minor Diameter (and 64.9% of thread) |
1.014" |
| SM30 Threading: Ø30 mm Lens Tubes |
| External Thread, M30.5x0.5 |
Internal Thread, M30.5x0.5 |
| Max Major Diameter |
30.480 mm |
Min Major Diameter |
30.500 mm |
| Min Major Diameter |
30.371 mm |
Min Pitch Diameter |
30.175 mm |
| Max Pitch Diameter |
30.155 mm |
Max Pitch Diameter |
30.302 mm |
| Min Pitch Diameter |
30.059 mm |
Min Minor Diameter (and 83.3% of thread) |
29.959 mm |
| Max Minor Diameter |
29.938 mm |
Max Minor Diameter (and 64.9% of thread) |
30.094 mm |
| SM1.5 Threading: Ø1.5" Lens Tubes |
| External Thread, 1.535"-40, UNS-2A |
Internal Thread, 1.535"-40, UNS-2B |
| Max Major Diameter |
1.5339" |
Min Major Diameter |
1.535" |
| Min Major Diameter |
1.5288" |
Min Pitch Diameter |
1.5188" |
| Max Pitch Diameter |
1.5177" |
Max Pitch Diameter |
1.5236" |
| Min Pitch Diameter |
1.5140" |
Min Minor Diameter (and 83.3% of thread) |
1.508" |
| Max Minor Diameter |
1.5068" |
Max Minor Diameter (and 64.9% of thread) |
1.514" |
| SM2 Threading: Ø2" Lens Tubes, 60 mm Cage Systems |
| External Thread, 2.035"-40.0, UNS-2A |
Internal Thread, 2.035"-40.0, UNS-2B |
| Max Major Diameter |
2.0338" |
Min Major Diameter |
2.0350" |
| Min Major Diameter |
2.0287" |
Min Pitch Diameter |
2.0188" |
| Max Pitch Diameter |
2.0176" |
Max Pitch Diameter |
2.0239" |
| Min Pitch Diameter |
2.0137" |
Min Minor Diameter (and 83.3% of thread) |
2.008" |
| Max Minor Diameter |
2.0067" |
Max Minor Diameter (and 64.9% of thread) |
2.014" |
| SM3 Threading: Ø3" Lens Tubes |
| External Thread, 3.035"-40.0, UNS-2A |
Internal Thread, 3.035"-40.0, UNS-2B |
| Max Major Diameter |
3.0337" |
Min Major Diameter |
3.0350" |
| Min Major Diameter |
3.0286" |
Min Pitch Diameter |
3.0188" |
| Max Pitch Diameter |
3.0175" |
Max Pitch Diameter |
3.0242" |
| Min Pitch Diameter |
3.0133" |
Min Minor Diameter (and 83.3% of thread) |
3.008" |
| Max Minor Diameter |
3.0066" |
Max Minor Diameter (and 64.9% of thread) |
3.014" |
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M52 x 0.75-Threaded Adapters