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View of the lens
TVR4518 M2235 is a high-performance glass lens from Tokina company of Japan, to be used mainly with megapixel cameras.
Specifications
| Name | TVR4518 |
| Code | M2235 |
| Focal length [mm] | 4.5 - 13.0 |
| F-number | 1.8 - C |
| Minimum focusing distance [m] | 0,5 |
| Preferable sensor size ["] | 1/2 |
| Viewing angle for 1/2" sensor: horizontally [°] vertically [°] diagonally [°] | 90-31 67-24 114-39 |
| Manual iris | YES |
| Auto iris | NO |
| AI control | does not apply |
| Maximum resolution [Mpx] | 3,0 |
| Mount | CS |
| Operating temperature range | -5 to 50 °C |
| Wymiary | fi 39 x 59mm |
| Main application | megapixel cameras |
The lens enables the installer/user to set focal length from 4.5 to 13.0mm. Adjustment of this parameter allows quick correction of viewing angle. In the case of cameras equipped with 1/2" image sensors, the angle can be changed within 90o to 31o (horizontally). The lens also has manually-adjustable iris.
Thanks to this high-end lens every megapixel camera can provide best possible results - sharp and detailed pictures.
Tokina of Japan has been known in the photographic world since 1951, as the producer of high quality materials used in photography. Since 1996 the company has focused on special lenses for CCTV cameras. Currently the offer includes the following kinds of lenses:
- megapixel
- IR
- AF (Auto Focus)
- wide-angle, middle-angle, telephoto (1.4 to 1100 mm)
- for 3-CCD cameras
Specifications
| Nazwa | TVR4518 |
| Kod | M2235 |
| Długość ogniskowej [mm] | 4,5 - 13,0 |
| Przysłona (F) | 1,8 - C |
| Minimalna odległość od obiektywu [m] | 0,5 |
| Rozmiar przetwornika ["] | 1/2 |
| Kąt widzenia: poziom [ °] pion [ °] po przekątnej [ °] |
90-31 67-24 114-39 |
| Przysłona manualna | TAK |
| Przysłona automatyczna | NIE |
| Maksymalna rozdzielczość [Mpix] | 3,0 |
| Mocowanie | CS |
| Temperatura pracy [ °C] | -5...+50 |
| Wymiary | fi 39 x 59mm |
| Uwagi | do kamer megapikselowych |