Canon B4 lens tripod support

cults3d

3D printed support for Canon B4 lenses, strategically placed at the center of gravity when paired with a small DSLR camera. This design significantly reduces wobble compared to using a lens adapter or relying solely on the camera. The support utilizes M3 screw threads originally intended for Canon remote focus and iris gears. Testing has confirmed its functionality on J9ax5.2B4 IRS & J15ax8B4 IAS lenses, and it may work with other Canon B3/B4/c-mount lenses featuring a 38mm gap between front and back screws (characterized by later fluted style rubber focus grips). However, it does not fit the YJ 18X9 lens. v5: A low-profile tripod base features a 1/4" UNC/BSW tripod screw thread for stable support. To assemble the support, four M3 x 6mm-8mm screws are required at both the front and rear (longer screws with suitable washers can be used instead; ensure they do not protrude more than 4mm into the lens to avoid locking the zoom and aperture rings). v2.2.6/7 versions accommodate adjustable height on 15mm bar supports, accommodating up to standard 85mm lens-center heights. The pillar measures 26mm wide x 8mm thick with a slot for an M4 screw or 25mm wide to fit some Chroziel supports. Lens fixings are M3x10mm. v3 is a modified riser using only the aperture gear block screws (two rear screw holes next to the doubler on lenses featuring the 2x doubler). NEW! v6 employs two screws next to the focus ring (M3 & M4) and functions as a riser from 15mm bars to the lens center, aligning with Arri standard height (85mm). To manage the floppy cable, a clip is available for attachment to 15mm bars. This clip requires an M5 screw or a Gopro-style thumbscrew; the print includes a thumbscrew knob design.