Lens Mounting
Lenses are not included with cameras. Teledyne FLIR sells a number of lenses compatible with our cameras from our website. There is also a Lens Calculator to help choose an appropriate lens.
Correct focus cannot be achieved using a CS-mount lens on a C-mount camera.
| C-mount models | CS-mount models |
|---|---|
| BFS-PGE-13Y3 / BFS-PGE-14Y3 / BFS-U3-13Y3 | BFS-PGE-04S2 / BFS-U3-04S2 |
| BFS-PGE-16S7 / BFS-U3-16S7 / BFS-U3-17S7 | BFS-PGE-16S2 / BFS-U3-16S2 |
| BFS-PGE-19S4 / BFS-U3-19S4 | BFS-PGE-23S3-CS |
| BFS-U3-20S4 | BFS-PGE-120S4 / BFS-U3-120S4 |
| BFS-PGE-23S3-C / BFS-U3-23S3 | |
| BFS-PGE-27S5 / BFS-U3-27S5 | |
| BFS-U3-28S5 | |
| BFS-PGE-31S4 / BFS-U3-31S4 / BFS-U3-32S4 | |
| BFS-PGE-50S4 / BFS-U3-50S4 | |
| BFS-PGE-50S5 / BFS-U3-50S5 | |
| BFS-PGE-51S5 / BFS-U3-51S5 | |
| BFS-PGE-63S4 / BFS-U3-63S4 | |
| BFS-PGE-70S7 / BFS-U3-70S7 | |
| BFS-PGE-80S5 / BFS-U3-80S5 | |
| BFS-PGE-88S6 / BFS-U3-88S6 / BFS-U3-89S6 | |
| BFS-PGE-120S4 / BFS-PGE-120S6 / BFS-U3-120S6 | |
| BFS-PGE-122S6 / BFS-U3-122S6 | |
| BFS-PGE-123S6P / BFS-U3-123S6 | |
| BFS-PGE-161S7 / BFS-U3-161S7 | |
| BFS-PGE-200S6 / BFS-U3-200S6 | |
| BFS-PGE-200S7 / BFS-U3-200S7 | |
| BFS-PGE-244S8 / BFS-U3-244S8 |
| Selecting a lens for your camera |
Back Flange Distance
The Back Flange Distance (BFD) is offset due to the presence of both a 1 mm infrared cutoff (IRC) filter (color models only) and a 0.5 mm sensor package window. These two pieces of glass fit between the lens and the sensor image plane. The IRC filter is installed on color cameras. The sensor package window is installed by the sensor manufacturer. Both components cause refraction, which requires some offset in flange back distance to correct.
For more information about the IRC filter, see Infrared Cut-Off Filters
