Kalimar 2X Teleconverter for Minolta MD

The Kalimar 2X Teleconverter for Minolta MD is an optical accessory designed to extend the reach of your Minolta MD mount lenses by doubling their focal length. Here's a comprehensive overview of this teleconverter:

Key Features:

1. Compatibility: Specifically designed for Minolta MD mount lenses and cameras.
2. Magnification: Offers 2x magnification, effectively doubling the focal length of the attached lens. For example, a 50mm lens will act as a 100mm lens with this teleconverter.
3. Automatic Features: Maintains automatic diaphragm control, ensuring ease of use with automatic exposure settings.

Usage Considerations:

1. Image Quality: Using a teleconverter typically results in some reduction in image quality. This can include a decrease in sharpness and contrast, as well as potential chromatic aberrations. The extent of this impact depends on the quality of both the teleconverter and the primary lens.
2. Aperture Reduction: The teleconverter reduces the maximum aperture of the lens by two stops. For example, a lens with a maximum aperture of f/2.8 will have an effective maximum aperture of f/5.6 when used with this teleconverter.
3. Autofocus Performance: While autofocus may still function, it can be slower and less accurate, particularly in low-light conditions or when using lenses with smaller maximum apertures.