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2x PX640 Battery Converter Adapters + 2x Adjust + 6x 675 batteries

Converter adapter to PX640 It uses 675 zinc-air-based hearing aid batteries and does not alter the measurement of photometry with a more precise reading (diaphragm/shutter), obtaining images with correct exposure (detail in shadows and highlights). having a constant current and being the exact voltage that it needs of 1.35V, (the 1.45V voltage indicated on the packaging is never reached). The old PX640 mercury batteries are no longer available due to the mercury content. You can also use 1.5V LR44 batteries, they fit perfectly. You can also use 1.5V LR44 batteries that you can see in our Ebay shop.

CANON: Canodate E, Canodate E-N, Date-Matic 

FUJI: Fujica GE, Fujica GER, Fujica GA, Fujica Date

KYOCERA :Electro 35FC, 35GX 

MINOLTA: Hi-Matic E, Hi-Matic F

OLYMPUS: 35EC, 35EC2, 35ECR, 35ED

PENTAX: SPOT METER 1, 2, 3

PETRI: ES Auto

RICOH: 500GX, 35EFS, ELNICA 35, ELNICA F

YASHICA: TL-Electro, Electro 35 FC, Lynx 14-E, Lynx 5000E


As a professional photographer with more than 35 years of experience, this adapter with LR44 batteries is the best choice.

We manufacture and design photographic accessories "Since 1992"