The EF and FD mounts themselves are metal and salvaged from old broken 35mm film cameras.
Flange focal distance will land within 0.5 mm short of specification so you can add your own shims to bring it as close as you want. These products are for those who have an understanding of adjusting flange focal distances or happy with close enough for use with our Directors View Finder.
Lens mounts are compatible with Red's DSMC lens mounts, but use on Red's DSMC cameras at your own discretion.
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