JCPenney Auto 2x Tele-Converter for Canon FD

The JCPenney Auto 2x Tele-Converter is an optical accessory designed for Canon FD-mount 35mm film SLR cameras and lenses. Positioned between the camera body and a primary lens, it doubles the effective focal length of the attached lens (e.g., converting a 50mm lens into a 100mm lens or a 135mm lens into a 270mm telephoto). Featuring automatic diaphragm linkage and mechanical aperture coupling, it provides a compact, budget-friendly way to extend optical reach without carrying extra telephoto lenses.

Key Features and Specifications

* Canon FD Mount: Compatible with classic Canon 35mm film SLRs (such as the AE-1, A-1, F-1, and FTb) and easily adapted to modern mirrorless camera bodies via a Canon FD adapter.
* 2x Magnification: Multiplies the effective focal length of the attached lens by 2x (reduces the maximum lens aperture speed by 2 full stops).
* Automatic Diaphragm Linkage: Maintains auto-aperture indexing and TTL exposure metering communication with compatible Canon FD lenses.
* Compact & Portable: Adds significant telephoto magnification while taking up minimal space in a camera bag.
* Versatile Adapting: Works well with vintage manual-focus primes and zooms on modern mirrorless cameras using standard FD adapters.

Condition and Included Accessories

* Included Accessories: Tele-converter only (front cap and rear cap are NOT included).