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Zeiss B Speed 25mm
Focal length: 25mm
T Stop: T1.4
Close focus: 10"
Front diameter: 95mm
Price: POA (Price on Application)
The Zeiss B Speeds or Super Speed MK1 as they are sometimes known, were released in the mid 70’s and were some of the fastest lenses around at this time. The range consists of 18mm, 25mm, 35mm, 50mm and 85mm with a T stop of 1.4. One thing that makes the B Speeds stand out is the triangular iris which results in that distinctive triangular bokeh. This is something DOPs either love or hate and consequently, we can offer Zeiss B Speed rehousing with the option of a triangular iris, or a new circular iris design.
These lenses are also known for being very compact and as a result, TLS is rehousing the lens into a 95mm front, whilst keeping the cam-form system, high quality and strength. The original movements of the elements, some of which are floating, will be incorporated into the design so there is no loss of quality to the image.
Zeiss B Speed 25mm Specification
| 18mm | 25mm | 35mm | 50mm | 85mm | |
|---|---|---|---|---|---|
| Mount | PL | PL | PL | PL | PL |
| T-Stop | T1.4 | T1.4 | T1.4 | T1.4 | T1.4 |
| Min. Object Distance typ. | 11" | 10" | 14” | 21" | 3’ |
| Min. Object Distance typ. (M) | 0.28 | 0.25 | 0.34 | 0.52 | 0.95 |
| Front Diameter (mm) | 95mm | 95mm | 95mm | 95mm | 95mm |
| Total Length *(mm) | 95mm | 75mm | 75mm | 75mm | 75mm |
| Total Length *(inches) | 3 3/4” | 3” | 3” | 3” | 3” |
| Weight **(g) | 1550g | 1050g | 1120g | 940g | 1550g |
| Weight **(lbs) | 3lb 7oz | 2lb 5oz | 2lb 8oz | 2lb 1oz | 3lb 7oz |
* Total approximate length is measured from the flange to the front of lens
** Weight subject to change with further developments
