The tripod mount ring is tailor-made for Canon EF 100mm f/2.8L Macro IS USM Lens; Can't be used with Canon EF 100mm f/2.8 USM Macro Lens. Adopt original factory standard, split structure. It is redesigned and produced by use new material and technology based the old version tripod ring TMR; | The inner diameter of this tripod ring is about 68mm. The surface contacting the lens is affixed with thicken flocking, the width of this contact surface is 18mm; net weight is about 142g; | The tripod collar bottom is added 55mm long Arca fit quick release plate feature, can be used with 39mm Arca-swiss fit tripod ball head, panoramic head and clamp directly; more practical than lens collars without QR-Plate; also reserved 1/4" screw holes and stainless-steel anti-slip screw for fixing lens to tripod directly; | The tripod collar mount ring is made of high quality Aviation Aluminum, lightweight and solid; precisely machined by world-class high-end CNC turning center, surface anodic oxidation; appearance and exquisite workmanship is much better than its old version and the similar products made by mold; | This lens support bottom is added Quick Release Plate feature of 39mm Arca-Swiss fit, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / MARKINS / PHOTOCLAM / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK.

The tripod mount ring is tailor-made for Canon RF 24-240mm F4-6.3 IS USM Lens, avoiding the position of commonly used switch; the tripod ring is fixed by the switch and cannot be rotated. This lens collar cannot be used for other lenses; | The lens collar adopts bevel engraving technology. Locked by large non-slip knob. The shortest inner diameter of the lens holder is about 79mm, and the surface contacting the lens is affixed with 3M plastic film, the maximum width of this contact surface is 25mm; net weight is about 170g; | The tripod collar bottom is added 55mm long Arca fit quick release plate feature, can be used with 39mm Arca-swiss fit tripod ball head, panoramic head and clamp directly; more practical than lens collars without QR-Plate; also reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screw for fixing lens to tripod directly; | The tripod collar mount ring is made of high quality Aviation Aluminum, lightweight and solid; precisely machined by world-class high-end CNC turning center, surface anodic oxidation; appearance and exquisite workmanship is much better than similar products made by mold; | This lens support bottom is added Quick Release Plate feature of 39mm Arca-Swiss fit, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / MARKINS / PHOTOCLAM / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK.

The tripod mount ring is made of aviation aluminum, CNC precisely machined, hollow-out weight reduction design, polished and surface anodized, precision bayonet position; net weight is about 125g; | The lens collar is tailor-made according to the lens. The inner diameter of the tripod collar is about 76mm; | The installation mark is laser engraved, clear and easy to identify. Using 3M non-slip film inside the tripod ring to prevent lens wear; | Bottom 65mm length quick release plate is AS standard, compatible with RRS / ARCA-SWISS / WIMBERLEY / MARKINS / SUNWAYFOTO / BENRO / SIRUI / MARSACE standard tripod ball head; | There are detachable non-slip screws and 1/4 and 3/8 screw holes at bottom, the scope of application is wider.

1. Main body made of Aviation Aluminum, CNC precisely machined, surface anodized, the maximum size with knob is about 203mm long, 106mm wide, and 34mm high, net weight is about 420g | 2. With stainless steel gear spiral zoom lever, stainless steel clutch, intermeshing helical power transmission, can move back and forth in precise mm distance for micro-adjustment focusing, convenient for close-up photography of micro object, the tested maximum horizontal load weight is about 3.4kg | 3. The width of the clamp on the slider is about 73mm, with spirit level, Arca-Swiss / RRS standard fit; the slider is about 150mm long, bottom is designed with quick release plate structure of Arca-Swiss / RRS standard fit | 4. Compatible with Arca-Swiss / RRS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO/SIRUI / MARSACE quick release plate and ballhead of Arca-Swiss / RRS standard fit; suitable for IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64 / IS-JZ60BK / IS-JZ70BK / IS-JZ80BK | 5. Package includes: 1 x All Metal 150mm Macro Focusing Rail Slider IS-MFR150 (Note: The slider need be used with quick release plate which is not included in the listing)