Here is a single TLS rehoused lens for sale Mamiya 645 17mm Fisheye Speedbooster.
Mount: LPL
T-Stop: 3.3
Min. Object Distance typ: 11"
Front Diameter: 134mm
Total Length: 104mm / 4.1"
The 17mm Mamiya Fisheye is using the base lens of a 24mm Mamiya 645 Fisheye. We introduce a 0.7x speed booster behind the base lens. This turns the 24mm into a 17mm lens and has the bonus of increasing the amount of light hitting the sensor. Therefore, wide open the lens (typically) reaches T3.3. As the original base lens was designed to cover the stills 645 film format, once the speed booster is on, the lens will still cover all full frame sensors.
| Focal Range (mm) | 17mm Fisheye Speedbooster | ||
|---|---|---|---|
| Mount | LPL | ||
| T-Stop | 3.3 | ||
| Min. Object Distance typ. (inches) | 11" | ||
| Ø Image Circle Across T-stop | T3.3 | T8 | T22 |
| Ø Image Circle - Close Focus (mm) | 47 | 47 | 47 |
| Ø Image Circle - Infinity (mm) | 44.71 | 44.71 | 44.71 |
| Front Diameter (mm) | 134 | ||
| Total Length* (inches) | 4.1 | ||
| Total Length* (mm) | 104 | ||