The Pentax C61215TH is a C-mount lens that was designed for 1/2-inch CCD industrial cameras. The lens has a fast f/1.2 aperture for excellent low-light images. The 12mm focal length lens covers more than 30°. This is a manual iris lens with manual focus. Iris and focus rings may be locked in position on this model.
| Mount | C-Mount |
| Image Format | 1/2-Inch CCD |
| Focal Length | 12 mm |
| Aperture | f/1.2 to f/22 |
| Iris Type | Manual |
| Focus Type | Manual |
| Horizontal View Angle | 30.18° |
| Minimum Object Distance (M.O.D.) |
0.8 Feet 0.2 Meters |
| Macro | None |
| Dimensions (WxHxD) |
1.18 x 1.18 x 1.4 Inches 30 x 30 x 35.5 mm 27 mm Filter Screw |
| Weight |
2.36 Oz 67 g |
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Comments about Pentax C61215TH 12 mm, f/1.2 C-Mount Lens for 1/2-Inch:
We used this lens to obtain a 30 deg field of view with limited distortion in the field edges relative to a far more expensive and faster f-stop lens. Good for moderate field size video meteor work.
Pros
Cons
Best Uses
Comments about Pentax C61215TH 12 mm, f/1.2 C-Mount Lens for 1/2-Inch:
I got this lens because I really liked my 25mm CCTV lens that I got for my E-P1 and wanted to get a wider lens too. This lens is not at all what I expected. It is wider, but the vignetting is very extreme. Over 1/4 of the frame is black, you would have to crop out the majority of the shot in order to get rid of all of it. If you are getting this lens to compliment your 25mm Pentax, I would think again.
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