OK, been getting a lot of queries about how to use OCT-18 lenses. First off, I TOLD YOU they’re a pain in the ass!
But I know how ya feel. I was also like that when I first embarked on my rather short Lomo anamorphic journey. Unless you’re filthy rich of course, and you’d buy PL or Hawks!
In short, the problem is that OCT-18′s are really designed for Konvas cameras with dovetail support. It holds the entire unit together so they don’t fall apart. Now, when I was using and selling OCT-18′s I used something called a SPT-1 by Velbon. It’s this magical accessory that helped me sell Hypergonar anamorphic lenses. It was designed for tele-lenses but I managed to configure them to push my anamorphic agenda! I bought them from a distributor in Hong Kong but if you Google it you should find it. It cost me about US$50 each.
Below are pics to illustrate. Here I use a GH2 with a OCT-18 (old version) adapter from ciecio7 on eBay. Now, the SPT-1 allows the OCT-18 unit to sit on top. The front element does extend while focusing so the SPT-1 provides enough room for it. I don’t have more pics but you can also stick a pistol grip underneath the SPT-1 to do some rudimentary handheld work. Entirely feasible but really a pain in the ass.