Table of Contents
Cooke Speed Panchro Series I 28mm f/2.0
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Summary
By 1930 Lee had updated his Opic designs and began to create the ‘Speed Panchro’ lens line specifically for cinematographic applications (U.S. patent 1955591A). An advertisement for these lenses ran in the November 1930 edition of The International Photographer and December 1930 edition of American Cinematographer. The lens designs reflected all Lee had learned in making the Opic and Ultra Speed lenses. This non-coated range was made up of 13 lenses ranging from 24mm to 121mm with an aperture of f/2.0 across the series. It’s worth noting however that without any coatings the effective T-stop would not have reached close to T2.
Tech Specs
| Manufacturer | Cooke |
| Series | Speed Panchro |
| Model | Series I |
| Focal Length | 28mm |
| Max Aperture | f/2.0 |
| Min Aperture | T22 |
| Format | Academy 35 |
| Image Circle | 31.1mm |
| Minimum Focus | - |
| Focus Rotation | - |
| Iris Blades | - |
| Optical Design | - |
| Squeeze | none |
| Front Diameter | - |
| Filter Thread | - |
| Focus/Zoom Rod | none |
| Native Mount | Arri/Mitchell |
| Data Protocol | none |
| Length | - |
| Weight | - |
| Body Telescope | none |
| Body Material | Aluminum |
| Focus Drive | Manual |
| Iris Drive | Manual |
| Zoom Drive | n/a |
History
Country of Origin:
Release Date:
Launch Price:
Design Revisions:
Service
This section restricted to Duclos Staff users.
Service Manual: Disassembly/Re-assembly
Full CLA: 5 hrs.
Enter relevant notes here
Spray threads: + 1 hr.
Optics only: 2-3 hrs.
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