Vivitar MC Tele Converter Minolta

The Vivitar MC Tele Converter for Minolta is an optical accessory designed to double the focal length of lenses it is used with. Here's a detailed overview of its features and considerations:

Key Features:

1. Compatibility: Designed specifically for Minolta mount lenses and cameras.
2. Magnification: Provides 2x magnification, effectively doubling the focal length of the attached lens. For instance, a 50mm lens will function as a 100mm lens with this teleconverter.
3. Multi-Coating (MC): The MC designation indicates multi-coated optics, which help reduce flare and improve contrast and color fidelity.

Usage Considerations:

1. Image Quality: Using a teleconverter typically results in some reduction in image quality, including sharpness and contrast. The Vivitar MC's multi-coating helps mitigate these effects but some loss is inevitable.
2. Aperture Impact: 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: Autofocus speed and accuracy may be affected, especially in low-light conditions or when using lenses with smaller maximum apertures.