EXTENDER LENS SERIES
Rear Converter Lens
![](https://www.optart.co.jp/wp-content/themes/optart/image/cover/EXTENDER_LENS.jpg)
By installing it in front of the camera, the master lens' (telecentric or macro) optical magnification can be increased without changing the working distance
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Configuration FNO.
Lens FNO. | Combined FNO. | |||||
---|---|---|---|---|---|---|
1.3× | 1.5× | 2× | 3× | 4× | 5× | |
0.95 | 1.235 | 1.425 | 1.9 | 2.85 | 3.8 | 4.75 |
1.3 | 1.69 | 1.95 | 2.6 | 3.9 | 5.2 | 6.5 |
1.4 | 1.82 | 2.1 | 2.8 | 4.2 | 5.6 | 7 |
1.6 | 2.08 | 2.4 | 3.2 | 4.8 | 6.4 | 8 |
1.8 | 2.34 | 2.7 | 3.6 | 5.4 | 7.2 | 9 |
2.8 | 3.64 | 4.2 | 5.6 | 8.4 | 11.2 | 14 |
- ※The resultant FNO. value is the multiplication of the rear converter magnification x main lens’ FNO.
Properties
- When the focal length is increased, the angle of view is decreased
- The FNO. value increases(Please see the FNO. converter table)※1
- Zoom Ratio and Working Distance from the object do not change
![](https://www.optart.co.jp/wp-content/themes/optart/image/product/EXTENDER_LENS_1.jpg)
![Opto Engineering](https://www.optart.co.jp/wp-content/themes/optart/image/opto_engineering.png)