Sigma Zoom-K 100–200mm f/4.5

Sigma Zoom-K 100–200mm f/4.5 – Vintage Manual Focus Telephoto Zoom Lens
The Sigma Zoom-K 100–200mm f/4.5 is a classic manual telephoto zoom lens from the late film era, known for its solid metal construction and multi-coated optics. With a constant aperture of f/4.5 throughout the zoom range, it delivers decent performance for portraits, wildlife, and distant scenes. This lens is manual focus only and typically available in various mounts—please confirm the mount for compatibility with your camera system.

Key Features

• Brand: Sigma

• Lens Model: Zoom-K 100–200mm f/4.5

• Serial Number: 795501

• Lens Mount: Pentax K

• Focal Length: 100–200mm

• Maximum Aperture: f/4.5 (constant throughout zoom range)

• Focus Type: Manual focus

• Optical Coating: Multi-coated for improved contrast and flare resistance

• Build: All-metal construction, smooth zoom action

• Use Case: Ideal for portrait, nature, and vintage adapted photography

Condition

Used – Good condition.
Lens is fully functional. Glass is clean with no haze or fungus. Focus and zoom rings turn smoothly. Aperture blades are oil-free and responsive. Minor cosmetic wear on the barrel from normal use.

What’s Included

• Sigma Zoom-K 100–200mm f/4.5 lens (Serial: 795501)

• Front and rear lens caps