Cosina C1s | Cosina 35-70mm f3.5 - 4.8 | 35mm SLR Film Camera | Fair

Brand: Cosina
Model: C1s with Cosina 35–70mm f/3.5–4.8 Macro
Type: 35mm SLR Film Camera Kit
CPB Code: C13 (Body) 
Lens:  (Pentax K-Mount)
Condition: Good, fully working mechanically. Light meter non-functional. Lens has slight fungus.
Rating: 6.5/10

Brand: Cosina
Condition: Used
Name: Cosina 35–70mm f/3.5–4.8 Macro
Type: Standard Zoom Lens with Macro Function
Mount: Canon FD Mount
Format: 35mm Full Frame
CPB Lens Code: C23
Aperture Range: f/3.5 – f/22
Focus Type: Manual Focus
Filter Thread: 52 mm
Condition: Good (Fungus Present)

Condition Description

This Cosina C1s kit is in good working condition overall, with the following notes:

• Camera body: Shutter, film advance, and rewind are smooth and reliable. The built-in light meter is not functioning, so external metering or Sunny 16 is required.

• The Cosina 35–70mm f/3.5–4.8 Macro lens (C23) has been inspected by CPB Darkroom and is in fair cosmetic condition. The optics show visible fungus, though the focus and zoom rings move smoothly and the aperture blades respond properly. 

CPB Darkroom Inspection

• Camera shutter speeds checked mechanically – accurate.

• Film transport tested – reliable.

• Lens aperture blades snappy, no oil.

• Lens fungus identified but optics remain usable.

• Both camera and lens are film-ready.

• All lenses sold by CPB Darkroom are inspected for optical clarity, mechanical reliability, and aperture accuracy. Any optical imperfections such as haze or fungus are clearly noted and reflected in the condition grade.

Background

The Cosina C1s, introduced as an affordable and lightweight SLR, is compatible with the Pentax K-mount system, opening up a wide range of lenses. Paired with the Cosina 35–70mm f/3.5–4.8 Macro zoom, this set offers versatility from wide to short telephoto, with added macro capability. Despite its entry-level status, the C1s is valued for its straightforward design and dependable mechanics.

Compact and lightweight, this lens provides a useful focal range from wide-angle to short telephoto, along with a macro feature for close-up photography. Known for its versatility and solid optical design, it performs well as an affordable all-purpose zoom for Canon FD-mount manual cameras.

Can be adapted to digital and mirrorless systems with appropriate adapters.

Usage Notes

This kit is an affordable entry point into film photography. The camera requires manual exposure estimation due to the non-working meter, and the lens has minor fungus that does not prevent shooting. Ideal for learners or experimental photographers seeking a functional budget setup.