{"product_id":"ishoot-full-metal-tripod-mount-ring-for-sigma-135mm-f-1-8-stable","title":"iShoot Full Metal Tripod Mount Ring for Sigma 135mm f\/1.8 - Stable","description":"\u003cp\u003eIn this review of the iShoot Full Metal Tripod Mount Ring for the Sigma 135mm f\/1.8 DG HSM Art lens, the bottom line is simple: this is a purpose-built collar that prioritizes rigid support and low weight for a heavy prime. Designed specifically for the Sigma 135mm f\/1.8, it offers a precise fit, quick release convenience and a durable all-metal build. For photographers who regularly use this lens on a tripod or gimbal and need consistent balance without adding bulk, this mount ring is a practical and reliable accessory.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAviation aluminum construction:\u003c\/strong\u003e The CNC-machined alloy shell keeps the collar lightweight yet rigid for stable lens support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom fit:\u003c\/strong\u003e Positioning by the lens switch and bayonet prevents rotation and ensures the ring aligns exactly with the lens for secure mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective interior:\u003c\/strong\u003e The inside is lined with 3M plastic film to prevent wear on the lens finish during use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated quick release plate:\u003c\/strong\u003e The about 70mm AS-standard plate at the bottom provides fast attachment to Arca-style heads and has 1\/4 and 3\/8 screw holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight-saving design:\u003c\/strong\u003e Hollow-out machining and rounded corners reduce bulk while maintaining strength; net weight is about 175g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-resistant hardware:\u003c\/strong\u003e Stainless steel screws and an anodized finish add durability in field use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis mount ring is aimed at landscape, portrait and event photographers who use the Sigma 135mm f\/1.8 on a tripod or ball head and need an exact-fit collar to improve balance and reduce lens stress. The quick release plate makes it useful for shooters who move frequently between tripod and handheld rigs and want a repeatable mounting position.\u003c\/p\u003e\n\u003cp\u003eIt is less relevant for photographers who rarely place this lens on a tripod, or for those who need a multi-lens adjustable collar; this product is customized to the Sigma 135mm f\/1.8 and is not intended as a universal solution.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid, CNC-machined aviation aluminum body gives a stable, professional feel.\u003c\/li\u003e\n\u003cli\u003eCustom positioning by switch and bayonet prevents rotation and ensures a precise fit.\u003c\/li\u003e\n\u003cli\u003eAS-standard quick release plate speeds tripod changes and is compatible with many Arca-style heads.\u003c\/li\u003e\n\u003cli\u003eLightweight design at about 175g makes it easy to carry without upsetting balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAs a lens-specific collar it cannot be rotated and is not a universal clamp for other lenses.\u003c\/li\u003e\n\u003cli\u003eLimited to the supplied plate format, so some specialized tripod plates or clamps may require adapters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAviation aluminum, stainless steel screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003eAbout 83mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003eAbout 25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuick release plate length\u003c\/td\u003e\n\u003ctd\u003eAbout 70mm (AS standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eSigma 135mm f\/1.8 DG HSM Art; Arca-Swiss fit heads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003eAbout 175g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe iShoot Full Metal Tripod Mount Ring is a focused, well-made accessory for photographers who rely on the Sigma 135mm f\/1.8 and want improved tripod balance with quick-release convenience. Its CNC aluminum build, protective 3M lining and Arca-compatible plate make it good value for users who need a secure, lightweight collar tailored to this lens.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit other lenses?\u003c\/strong\u003e\u003cbr\u003eIt is customized for the Sigma 135mm f\/1.8 and is not intended as a universal collar; fit and alignment are specific to that lens.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the quick release plate Arca-compatible?\u003c\/strong\u003e\u003cbr\u003eYes, the bottom plate is AS standard and works with most Arca-style tripod heads and clamps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the ring damage my lens finish?\u003c\/strong\u003e\u003cbr\u003eNo, the interior is covered with a 3M plastic film and corners are rounded to reduce wear on the lens body.\u003c\/p\u003e","brand":"iShoot","offers":[{"title":"Default Title","offer_id":48610428518619,"sku":"B07P38DR4B","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/31L7xYMnCaL._AC.jpg?v=1778580187","url":"https:\/\/gearmusthave.com\/products\/ishoot-full-metal-tripod-mount-ring-for-sigma-135mm-f-1-8-stable","provider":"GearMustHave","version":"1.0","type":"link"}