Table of Contents
Zeiss CP.3 50mm T2.1
Summary
Digital technologies have transformed traditional filmmaking and refashioned the market. New and innovative technologies in both production and post-production have paved the way for a more versatile, cost effective and advanced workflow. The ZEISS CP.3 family is the latest contribution from ZEISS to support creative and progressive filmmaking with an affordable, future-proof and premium quality lens set. The ZEISS CP.3 lenses offer the perfect combination of high image quality and reliable usability. They exhibit the clean, crisp characteristics ZEISS is known for, together with an interchangeable mount system and full-frame coverage. The ZEISS CP.3 XD version features innovative and ground-breaking lens data technology to speed-up and simplify the workflow on set and in post-production. The ZEISS eXtended Data is a unique technology which is based on the /i* Technology and provides information about the lens’ distortion and shading characteristics in real time. With the ZEISS CP.3 XD lenses, even small productions on a limited budget gain access to the advanced techniques common in state-of-the-art, big budget films, commercials and television shows.
Tech Specs
| Manufacturer | Zeiss |
| Series | CP.3 |
| Model | - |
| Focal Length | 50mm |
| Max Aperture | T2.1 |
| Min Aperture | T22 |
| Format | 35mm FF, VV |
| Image Circle | ⌀ |
| Minimum Focus | 18in |
| Focus Rotation | ° |
| Iris Blades | - |
| Optical Design | - |
| Squeeze | - |
| Front Diameter | 95mm |
| Filter Thread | - |
| Focus/Zoom Rod | - |
| Native Mount | PL, EF, F, MFT, E |
| Data Protocol | - |
| Length | 3.3in |
| Weight | 1.7lbs |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin: -
Release Date: -
Launch Price: -
Design Revisions:
Service
This section restricted to Duclos Staff users.
Special Service Notes:
Dis-assembly notes
1. Remove beauty ring and lock ring.
2. Remove second beauty ring (inside first beauty ring)
3. Remove 4 screws for front group.. Factory adds small white mark on side of front group which line up with serial number
4. Remove rear lock ring to remove rear group. Also has white marks like front group
* try not to put too much pressure on focus helical (sensitive) hold from internal optics if possible
5. measure the depth of the helical from front to moving group.
6. Remove focus scale toward Front
7. focus stop is bar above helical instead of under front ring like cp.2
8. Remove rear housing lock ring
9. Remove iris linkage screws. Slightly adjustable (slot)
10. Rotate iris ring (or linkage) to release iris scale
11. Remove index ring (smart front witness ring). Focus stop is attached to this. Will loose stop.
*25, 35, 100,135 has double helical. Make sure to measure the depth of both moving groups.
*50, 85 have 2 moving groups (different from above)
12. Remove end stop (bar)
13. Remove front engraved ring.
14. Turn outer helical until inner helical (iris housing) leaves thread. * do not remove 9 screws holding thread blocks on inner housing!
*can only replace front and rear elements or entire group containing internal damaged element. (no single internal elements)
15. Remove lock ring at front of chassis to remove bearings. Glued VERY well. Metal shims under bearing strip. If bearings are replaced and has play, can add metal shim to reduce play.
Bearing/helical grease losuid? New.
Reassembly:
Bearing lock ring Torque is 4mm lock ring Bottoms out on lip.
When re-threading helical, careful to not miss or hit plastic threads on iris. Will destroy threads easy.
Zeiss has tool for inner thread insertion alignment
Set helical depth according to depth measurement. Make sure to measure and get correct depth for focal lengths with double helical (2 moving groups).
Infinity hard stop is at infinity
Service Manual: (Insert link to manual here)
Full CLA: #hrs.
Enter relevant notes here
…end of Staff section