Check the listing for details. Vivitar Electronic Flash Model 283 Automatic Thyristor Exposure Control Vintage!. Condition: Used, Made in Japan. Listed at 29.99 USD. Sellars Note: This Flash appears to be in amazing shape! The Battery compartment shows zero signs on corrosion!It has the original box, and owners manuals! This unit has not been tested and will be strictly sold as is! If you have any questions please reach out! The Vivitar Electronic Flash Model 283 is a vintage camera accessory known for its automatic thyristor exposure control. This flash unit, branded by Vivitar, is designed to provide consistent and reliable lighting for photography purposes. With its specific model number 283, this flash offers a user-friendly interface and efficient performance for capturing high-quality images. Perfect for photographers looking to achieve precise lighting effects with their vintage cameras.