This elegantly designed Adapter created by Retrograde Engineer opens incredible potentials for SX-70 shooters. It allows virtually all 37mm sized filters and lenses with thread-mount bases to be securely mounted to your SX-70, SX-70 Sonar, and SLR 680/690 cameras.

When using lenses on cameras with auto-focus, you will need to set your camera to “Manual Focus” for proper results. Auto-focus cameras will not know a lens has been applied and will auto-focus assuming its utilizing only it’s native lens. Switch to “Manual Focus” and trust your eye; all SX-70 and SLR 680/690 cameras are SLR’s so what you see is precisely what will reach the film!