bottom view of the clamp, made from two pieces of aluminum bolted together with 6-32 bolts
File: IMG_3688.JPG File size: 1,031KB Image Serial Number: 000-3688 Camera Model: Canon EOS 5D Mark II Camera serial number: 0220102241 Firmware: Firmware Version 1.0.6 Date/Time: 2009:09:18 13:34:47 Shutter speed: 1/250 sec Aperture: 8 Exposure mode: Av Flash: Off Metering mode: Evaluative Drive mode: Continuous ISO: 400 Lens: EF100mm f/2.8 Macro USM Focal length: 100mm AF mode: One-shot AF Image size: 2508 x 1617 Rotation: none Image quality: Fine White balance: Auto Picture style: User Def. 1 (Standard) Color space: sRGB Saturation: Normal Sharpness: 3 Contrast: Normal Tone: Normal User comments: "bottom view of the clamp, made from two pieces of aluminum bolted together with 6-32 bolts"