Ok this is the procedure for using the LA7200 with a Canon film camera with 58mm filter thread. Might work out for you.
The LA7200 is a 72mm thread, use a step-up ring for 58mm (Canon) and an additional ring extension
because the LA7200 was made for DV and the clearance for the thread is limited and wont fit directly
in the step-up ring, for the extension I use an old 72mm polarizer without the glass.
1- keep the anamorphic fully horizontal
2- Adjust focus and recheck anamorphic lens position
3- Avoid extreme short DoF
4- At the begining of every shoot put a perfect circular object in front of the camera (draw a circle in the slate)
this will be your guide in post for 16x9 correction
In other words, for the anamorphic support get an old 72mm skylight filter, break the glass , cut away the excess metal ring in the la7200 adapter, screw on both parts, the focus ring of the taking lens will fit and allow to focus perfectly, just keep the adapter horizontal.
Edited by Samuel Berger, 23 November 2017 - 06:55 PM.