{"product_id":"ishoot-82mm-lens-collar-tripod-mount-ring-arca-fit-quick-release","title":"iShoot 82mm Lens Collar Tripod Mount Ring - Arca Fit Quick Release","description":"\u003cp\u003eIn this review of the iShoot 82mm Lens Collar Tripod Mount Ring, the bottom line is simple: it is a purpose-built, lightweight tripod ring for photographers using the Sigma 105mm F1.4 Art or Sigma 100-400mm f\/5-6.3 DG DN OS lenses who need a solid Arca-compatible support without excess bulk. The reviewer found the ring's CNC aluminum build, Arca-Swiss dovetail and reserved screw holes make it a practical upgrade for studio and field work, while its tailored fit and protective inner film prevent abrasion on the lens barrel.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailored compatibility:\u003c\/strong\u003e Designed to match the Sigma TS-111 form and fit the Sigma 105mm F1.4 DG HSM Art and Sigma 100-400mm DG DN OS precisely, which keeps the lens stable on a tripod.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight construction:\u003c\/strong\u003e The hollowed aviation aluminum body weighs about 170g, offering strong support without adding significant weight to a rig.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArca-Swiss quick release:\u003c\/strong\u003e A 65mm long Arca-fit dovetail plate lets the collar mount directly to Arca-compatible heads and clamps for fast, secure attachment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens protection details:\u003c\/strong\u003e Inner grooves, notches and a 3M protective plastic film help prevent the collar from scratching the lens finish during use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting versatility:\u003c\/strong\u003e Bottom 1\/4in and 3\/8in screw holes with stainless anti-slip screws allow fixed tripod mounting when needed for heavy-duty stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure locking:\u003c\/strong\u003e A non-slip locking knob gives tactile control when clamping the collar to the lens for repeatable positioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe iShoot collar is aimed at photographers who already own the specific Sigma lenses listed and want an Arca-compatible support that is lighter and more refined than many generic rings. It is especially useful for portrait, wildlife and sports shooters who change between handheld and tripod setups frequently and need a quick-release dovetail on the lens itself.\u003c\/p\u003e\n\u003cp\u003ePhotographers with other lens models or owners of the Sigma 100-400mm f\/5-6.3 DG OS HSM Contemporary (EF \/ F Mount) should look elsewhere, because this collar is not compatible with that Contemporary EF\/F mount variant or with lenses outside the specified models.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTailored fit for Sigma 105mm F1.4 Art and Sigma 100-400mm DG DN OS provides stable, centered support.\u003c\/li\u003e\n\u003cli\u003eBuilt from CNC-machined aviation aluminum for a refined finish and strong but light construction.\u003c\/li\u003e\n\u003cli\u003eBuilt-in 65mm Arca-style dovetail plate speeds tripod mounting and works with standard Arca clamps and heads.\u003c\/li\u003e\n\u003cli\u003eProtective inner film and anti-slip design help safeguard the lens finish and keep the collar locked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatibility is limited to specific Sigma lens models, so it will not fit other lenses or the Contemporary EF\/F-mount 100-400mm variant.\u003c\/li\u003e\n\u003cli\u003eWidth and feature set are fixed, so photographers needing an adjustable or multifunction support may prefer a different style.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003eAbout 82mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003eAbout 170g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate length\u003c\/td\u003e\n\u003ctd\u003e65mm Arca-fit dovetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAviation aluminum, CNC machined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting holes\u003c\/td\u003e\n\u003ctd\u003eReserved 1\/4in and 3\/8in screw holes with stainless steel screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible lenses\u003c\/td\u003e\n\u003ctd\u003eSigma 105mm F1.4 DG HSM Art and Sigma 100-400mm f\/5-6.3 DG DN OS (E\/L mounts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe iShoot 82mm tripod collar is a focused accessory that delivers refined build quality, Arca-compatible convenience and lens protection for the two supported Sigma lenses. It represents good value for photographers who need a lightweight, durable dovetail ring tailored to those optics, but it is not a universal solution for other lens models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit the Sigma 100-400mm EF mount Contemporary?\u003c\/strong\u003e\u003cbr\u003eIt will not fit the Sigma 100-400mm f\/5-6.3 DG OS HSM Contemporary EF\/F mount variant; compatibility is limited to the listed E and L mount DN OS and the 105mm Art models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it with an Arca-Swiss clamp?\u003c\/strong\u003e\u003cbr\u003eYes, the collar includes a 65mm Arca-fit dovetail plate that mounts directly to standard Arca-Swiss style clamps and heads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it protect the lens finish?\u003c\/strong\u003e\u003cbr\u003eThe inner wall includes grooves, notches and a 3M protective plastic film to reduce the risk of scratching the lens barrel.\u003c\/p\u003e","brand":"iShoot","offers":[{"title":"Default Title","offer_id":48206045216987,"sku":"B08GYBDL99","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41t9Tt17OtL._AC_SL1000.jpg?v=1770225347","url":"https:\/\/gearmusthave.com\/products\/ishoot-82mm-lens-collar-tripod-mount-ring-arca-fit-quick-release","provider":"GearMustHave","version":"1.0","type":"link"}