Specification Brand : COMETX BulletPoint1 : 【2 Extension Tubes】Combined of 2 different metal extension tubes, including 12mm + 24mm, the automatic extension tubes can be used separately(12mm/24mm) or in combination(12mm+24mm) for different focal length. BulletPoint2 : 【Electric Pins】Built-in electric pins, superior lock pin which can tighten the tube joint, to make photographic activities at closer distance with higher magnification, to achieve macro effect with excellent photo quality. BulletPoint3 : 【Multifunctional】Support camera TTL, autofocus function and EXIF information transmission, only shooting according to actual photometric conditions, which is really convenient for user. BulletPoint4 : 【Lightweight】High quality and compact machining, net weight only 151g/ 5.32oz which is super lightweight and portable. BulletPoint5 : 【Durable】These extension tubes offer lightweight durability, with metal mounts that provide additional robustness that will stand up to switching between lenses and other tubes for long-lasting use. Color : Black ExternallyAssignedProductIdentifier : 8414773326458 ExternallyAssignedProductIdentifier1 : 0194852505155 ExternallyAssignedProductIdentifier2 : 194852505155 ItemName : COMETX Automatic Extension Tubes 12mm + 24mm R Mount Macro Tubes Sets Lightweight Compatible with CA-Non RF-Mount Lenses and CA-Non R5/R6/R7/R10 Camera, Black ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 4.2 centimeters ItemPackageDimensions_Width : 7.3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-extension-tubes ItemTypeName : camcorder-lenses Manufacturer : COMETX Material : Aluminum ModelNumber : AF Extension Ring PartNumber : D12306-WJUS PhotoFilterEffectType : Close-Up PhotoFilterThreadSize : 55 millimeters ProductDescription : Specifications: Suitable Lens: For CA-NON RF Mount Lenses Compatible Devices: CA-NON R5/R6/R7/R10 Camera Item Weight: 151g/ 5.32oz Item Size: 7 * 7 * 6cm/ 2.75 * 2.75 * 2.36in Packing List: 1 * Automatic Extension Tubes ProductSiteLaunchDate : 2024-01-03T11:18:06.818Z SupplierDeclaredDgHzRegulation : not_applicable WaterResistanceLevel : not_water_resistant