Extremely rare and unusual L39 mount adapter by famous optical company Ross London. L39 Leica thread mount with flange showing Ross London Logo and four screw holes. Ross London are famous and highly regarded British lens manufacturers who were responsible for the incredible 2” f/1.9 Ross Xpres, the LTM mount Xtralux which we think this could well have been designed as an accessory for. We have never seen another of these, get yourself a piece of British cine lens history!!
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