Use our Ribcage H5PRO modified GoPro Hero5 Black cameras to connect M12, CS and C-Mount lenses - and yes, SLR lenses as well as most other popular lens types. In this case we loaded up our H5PRO with a Sidearm tripod mount and set it on a professional rail system complete with a 1080p field monitor. Three lenses were used as well as Nikon & Canon C-Mount adapters complete with iris control. A Back-Bone 0.6 ND filter was used in-camera. Edited and color graded in Premiere Pro with a subtle film grade added for cinematic effect. Back-Bone Equipment: www.back-bone.ca/product/h5pro/ www.back-bone.ca/product/sidearm/ www.back-bone.ca/product/canon-eos-to-c-mount-iris/ www.back-bone.ca/product/nikg/ www.back-bone.ca/product/h5prond/ Lenses: Nikon 50mm f1.4 - from 1966, most shots use an f-stop of 2.8 with f8 used for long shots Nikon 18-70mm DX (AF-S) - Full auto lens with no iris ring, so a C-Mount adapter with iris control was used Canon EF 17-40mm - Full auto lens with no iris ring, so a C-Mount adapter with iris control was used Camera Settings: 4K/30 Protune Flat color Native WB MAX 400 ISO Shutter Speed Auto - in some cases manual set to 1/60 Visit our shop for more mods! SLR lenses can also be connected to Hero3/3+, Hero4, Yi 4K & 4K+ using our products. www.back-bone.ca/product-category/ribcage_cameras/