Computar 2.0x, 2 Megapixel Telecentric Lens With Coaxial Light Port In C-mount For 2/3" Sensors (2.57" Working Distance)
- Product Code: ga40681
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This 2.0x, 2 Megapixel Telecentric Lens with Coaxial Light Port in C-Mount for 2/3" Sensors from computar is designed for machine vision applications and incorporates a port for a coaxial lighting fixture (not included).
It is a fixed focal length lens that resolves an image on 2/3" cameras with 2MP sensors, and it incorporates a C-Mount. Featuring a minimum working distance of 2.6", while providing a 2.0x magnification, the lens has low corner distortion of 0.02%.
For C-Mount Machine Vision Cameras Telecentric Lens Coaxial Lighting Capability For 2MP Sensors on 2/3" Cameras 2.57" Minimum Focus Distance 2.0x Magnification Low TV Distortion Correction
Parameters | |
---|---|
Magnification | 2.0x |
Mount | C-Mount |
Coverage | 2/3"-type sensor Diameter: 0.4" / 11 mm |
Working Distance | 2.57" / 65.4 mm |
Effective Aperture | f/12.8 |
Resolving Power | 4.4 µm |
Depth of Field | 0.01" / 0.26 mm |
Back Focal Length | 0.7" / 17mm |
Flange Back Length | 0.69" / 17.526 mm |
Field of View | 2/3": 0.17 x 0.13" / 4.40 x 3.30 mm 1/1.8": 0.14 x 0.10" / 3.59 x 2.66 mm 1/2": 0.13 x 0.09" / 3.20 x 2.40 mm 1/3": 0.09 x 0.07" / 2.40 x 1.80 mm |
Operating Temperature | 14 to 122°F / -10 to 50°C |
Dimensions | Diameter x Length: 0.98 x 3.05" / 25.0 x 77.4 mm |
Weight | 1.9 oz / 55 g |
Telecentric lenses are designed so that the light exiting the rear element is perpendicular to the sensor. Non-telecentric lens designs allow the light to strike the sensor at an angle, which can lead to vignetting at the edge and corners of the sensor. The telecentric design of the lens minimizes vignetting.
This lens incorporates a port for a coaxial lighting device (not included). This set up enables you to illuminate the target area from the position of the lens itself, as opposed to setting up lights adjacent to your target.
Related Questions and Answers
Q: 1. I understand that the focusing screen of D810 cannot be changed. Without a central telemeter, how can one check proper focusing?
A: If you are concerned with focus on the D810, you could use the Nikon DG-2 Eyepiece, which will magnify the viewfinder by 2x: http://bhpho.to/10diQr9
Q: 2. Is this lens fully compatible with the Nikon F6 film camera?
A: For a list of compatible cameras, please visit the ZEISS website using the link below: a href= https://www.zeiss.com/camera-lenses/int/photography/content/camera-mounts.html target= _blank https://www.zeiss.com/camera-lenses/int/photography/content/camera-mounts.html/a
Q: 3. Does the lens have an aperture ring or is that controlled from the camera body?
A: While you can control the aperture of the Zeiss 55mm f/1.4 Otus Distagon T* Lens for Nikon F Mount on the camera body, the lens does feature an manual aperture ring which allows you to manually control the aperture on older SLR and DSLR cameras.
Q: 4. Canon focus screens
A: There are no interchangeable focus screens for the 5dmkiii. There is a focus confirmation beep with the center af point. If you have a eos1-n, 1-v, eos 3, or even a 5d up to mkii, they all accept the same screens. There is a split image/ microprism Fresnel (Ec-B) that would be helpful for those cameras; it is sold by B&H, but it is on backorder now. With 5dmkii just use af confirmation, or shoot in Live View and magnify to confirm focus. The microprism fresnel's are all in the Center anyway so it's the same deal. Wide open handheld with a figity subject is a tough. This lens is a powerful tool, but it does take a certain dedication to work with it. The results are worth the effort. Good luck!
Q: 5. Will this cover full frame sensors?
A: This lens has an image diameter of 39mm. It will not cover Full Frame.
Q: 6. How does Zeiss Compact lenses compare to the CP.2 lenses? Pros, Cons etc...
A: The ZEISS CZ.2 cine zoom lenses are designed to be companions for all ZEISS cine primes including the ARRI/ZEISS Master Prime and Ultra Prime, in addition to the Compact Prime CP.2. The lenses are color matched to each other and will provide similar image performance in terms of contrast and resolution.
Q: 7. Is this lens made in Germany?
A: The ZEISS Otus 55mm f/1.4 ZF.2 Lens for Nikon F is manufactured in Japan.
Q: 8. What's difference between long working distance and compact version?
A: The Whitepoint Optics 35mm Neo Super Baltar Lens with PL Mount (Imperial Scale ( Compact ) lens has a PL mount that is very deep inside the camera, so it doesn't work with cameras like the Arriflex, or old film cameras with a guillotine shutter. Also the Compact model lens has a smaller image circle, and it vignettes a bit in full frame. The Whitepoint Optics 35mm Neo Super Baltar Lens with PL Mount (Imperial Scale, Long Working Distance) has a larger image circle, and it covers full frame. The LWD lens can be used with Arriflex, and all other cameras.
Q: 9. Is this Lens made in Germany?
A: The country of origin information is not yet posted in our system. Once the lens arrives into inventory, that type of information will become available. I am very confident however that the lens is manufactured in Germany. Once the lens arrives into stock, feel free to ask us again and we will be able to confirm then. - Yossi
Q: 10. Iam planning to buy this Zeiss CZ2 70-200 my pl mount for shooting my feature film on my Red epic dragon and the black magic Ursa mini pro4.6 camera,I have already canon cn - e 145-60 mm t/ 2.6 pl lens,My doubt is how is the picture quality of this lens like boketh,breathing,sharpness,colour retention,chromatic abration,distortion exetra is it better than cp2/3 lens,iin par with ultra prime,fuginon cabrio zoom like 19-90 t/2.9 or 85-300 t/2.9-4 lenses,I know it is a full frame lens,so there Will be change in angle of view when used on super 35 sensor,-asok
A: The ZEISS Compact Zoom lenses are high-end cine zooms which are designed as companions for the UltraPrime and MasterPrime lenses. They offer similar color rendition and contrast, with the added benefit of having full-frame coverage. This means on super 35 sensors, you are imaging within the 'sweet spot' of the lens. Regarding the angle of view on different sensor sizes, please review the technical specs at: a href= http://www.zeiss.com/cine. target= _blank www.zeiss.com/cine./a
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