Computar 1" 50mm F/1.4 2mp Lens (c-mount)
- Product Code: ga45061
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This Computar 1" 50mm f/1.4 2MP Lens is designed for cameras with a C-Mount for use in a variety of applications. It has a fixed focal length of 16mm, and resolves an image on 1" cameras with 2MP sensors. Featuring a minimum focus distance of 11.8", the lens focuses to infinity and incorporates both lockable iris and focus rings, so you can leave the lens set up and not have to worry about either ring changing over time. The front of the lens incorporates an M40.5 filter thread.
For 2MP Sensors on 1" Cameras 1.64' Minimum Focus Distance Lockable Focus and Iris Rings M40.5 Filter Thread
Parameters | |
---|---|
Mount | C-Mount |
Focal Length | 50mm |
Focus Range | 1.64' to ∞ / 50 cm to ∞ |
Iris Range | f/1.4 to f/16 |
Coverage | 1" Type sensor Max Image Format: 0.5 x 0.38" (0.63") / 12.8 x 9.6 mm (16 mm) |
Object Dimensions at M.O.D. | 1": 0.37 x 0.49" / 0.941 x 1.257 cm |
Effective Lens Aperture | Front Diameter: 1.38" / 35.00mm Rear Diameter: 0.63" / 16.00mm |
Angle of View | 1": 18.03° (14.5 x 10.92°) 2/3": 12.49° (10.02 x 7.53°) |
Distortion | -0.82% (y=8.0) |
Back Focal Length | 0.57" / 14.55mm |
Flange Back Length | 0.69" / 17.526 mm |
Filter Size | M40.5 P=0.5 mm |
Operating Temperature | 14 to 113°F / -10 to 45°C |
Dimensions | Diameter x Length: 1.87 x 1.89" / 47.5 x 48 mm |
Weight | 6.7 oz / 190.0 g |
Packaging Info | |
Package Weight | 0.45 lb |
Box Dimensions (LxWxH) | 3.5 x 2.3 x 2.2" |
The fast f/1.4 aperture enables you to use this lens in low-light situations
The lens works in temperatures from below freezing to over 100 degrees Fahrenheit
Related Questions and Answers
Q: 1. Can the aperture (Nikon F vers.) be controlled from the camera? That is, does it stop down only when the shutter fires?
A: The Rokinon 50mm f/1.4 AS IF UMC Lens for Nikon F Mount aperture cannot be controlled from the camera. The aperture needs to be set manually on the lens.
Q: 2. Is the aperture ring on this lens declicked for cine/video work ? What is the difference between this lens & Rokinon’s Cine line of lenses ? I would use as a prime on my FS7
A: It is not, this does not offer a de-clicked aperture. That is one of the main differences between this and a Rokinon Cine lens like B&H # RO5015TSE. Rokinon Cine Lenses offer a de-clicked aperture and have lens gears built in for use with Follow Focus Systems. https://bhpho.to/2psJeOp
Q: 3. does this work on the a6100?
A: Yes, the Sony FE 50mm f/1.4 GM Lens (Sony E) is as full frame lens that works perfectly on the Sony a6100.
Q: 4. Does this lens come with contacts for EXIF support and aperture control?
A: This is a fully manual lens, including aperture.
Q: 5. Are there any lens filters available for this lens? Polarizer?
A: There are no filter threads on this lens.
Q: 6. Does the aperture ring click?
A: Yes, the TTArtisan 50mm f/1.4 ASPH. Lens for Leica M has defined clicks at both the full-stop and half-stop aperture settings.
Q: 7. Lens shade?
A: I would recommend a metal screw-on lens hood like this B+W 49mm diameter threaded lens hood. This particular one has been engineered to work well with the 50mm focal length: https://bhpho.to/34OXNQ5
Q: 8. will the aperture remain wide open when not taking a photo, only going to the selected setting when the shutter is pressed?
A: No, the aperture will adjust according to the aperture that is set on the aperture ring of the Rokinon 50mm f/1.4 AS IF UMC Lens for Canon EF Mount. The aperture does not stop down like in an auto exposure lens. This is a fully manually exposure lens, so the aperture only changes when you change the aperture ring.
Q: 9. does it come calibrated out of the box?
A: The TTArtisan 50mm f/1.4 ASPH. Lens for Leica M is set to a standard but not specifically calibrated.
Q: 10. What's FOV angle of this lens when used with 2/3 5MP sensor?
A: 2/3 sensor, 8mm lens = FOV H 57.62 degrees, V 4483 degrees.
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