Horseman has an accessory adaptable back that allows upgrading it's 6x9 folding camera to 4x5. Has such a back ever been made by any company to upgrade 4x5 inte rnational backs to 5x7? It consists in a spring back and ground glass on limited bellows. It allows the use of some lenses only but the 5x7 format would be very nice, I think with the 110 XL and some other lenses I use for 4x5.
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