Vivitar Automatic Extension Tube Set AT-5 12mm 20mm 36mm for Minolta MD Mount - Made in Japan - Complete with Case Complete Vivitar Automatic Extension Tube Set AT-5 for Minolta MD mount cameras, made in Japan. Includes all three extension tubes (12mm, 20mm and 36mm), Vivitar original carrying case. The set is in exceptional cosmetic and mechanical condition. All components operate smoothly and correctly, with clean bayonet mounts, intact locking mechanisms and precise coupling action. No visible scratches, dents or oxidation were observed on the tubes. Designed for macro and close-up photography while maintaining automatic aperture functionality with compatible Minolta cameras and lenses. Included: - Vivitar AT-5 extension tubes: 12mm, 20mm, 36mm - Original Vivitar front cap - Original Minolta rear cap - Original Vivitar carrying case Technical details: - Brand: Vivitar - Model: Automatic Extension Tube Set AT-5 - Mount: Minolta MD / SR mount - Country of origin: Japan - Period: circa 1970s–1980s - Material: Metal - Condition: Excellent vintage condition, fully functional Tested and fully functional. Sold as collector’s item and photographic accessory. Worldwide shipping. Shipping fee includes professional carefully packaging to ensure safe and secure delivery.