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![COOKE S4 12mm ACADEMY TO S35 OPEN GATE XPANDER](http://opticamagnus.com/cdn/shop/files/Cooke12mmXpander_CUonlens_wCaution.jpg?v=1704904006&width=1445)
![COOKE S4 12mm ACADEMY TO S35 OPEN GATE XPANDER](http://opticamagnus.com/cdn/shop/files/InstallCooke12mmXpander.jpg?v=1704904006&width=1445)
- More Information
- Technical Specs
Weight: 7oz. (198g)
• Stop loss: 1/3 stop
• COO12 #5001 Cooke S4 12mm to S35 Open Gate.
• This Xpander easily installs on the rear of the Cooke S4 12mm lens with the removal of 6 screws. The shims might need to be adjusted to properly collimate the lens for proper flange to sensor plane distance.
• CAUTION: Use only on mirrorless cameras