Metz 32CT3 Auto Thyristor Flash with a SCA 331 Module for Minolta 35mm Manual Focus Cameras The Metz 32CT-3 Flash is a powerful dedicated shoe-mount unit with a Guide Number of 110' ISO 100 @ 50mm and has an auto exposure range up to 50' (15 m). This flash has a dediocated module for Minolta 35mm Manual Focus cameras it will deliver accurate exposures and convenient fill-flash. The flash can be set to bounce at 0°, 45°, 60°, and 90° and to swivel 180 degrees. The unit has an easy-to-read calculator dial so you can work under most lighting conditions. Guide number 110' ISO 100 @ 50mm Automatic and Dedicated exposure range to 50'. Three auto f/stop settings for controlling depth-of-field and maximum auto flash range. Bounce flash capability for softer lighting. Auto Thyristor circuitry for faster recycle time and greater number of flashes. PM for more details.