Hey i have a Canon hv30 and have just won a Redrock Micro M2 35 mm Adapter on ebay for 150 dollars. I really want to buy it but i know i will also need a rail system. Will any rail system work or will their be problems with the height of the lens on the adapter and the lens on the hv30 matching up? Also is 12" long enough or should i go with the 18". im trying to spend as little money as posible. Any help is good thanks
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