{"product_id":"sv165-30mm-f4-mini-star-guide-scope-finder-with-120mm-focal-length-fmc-coating-aluminium-body-1-25-inch-or-m42-mount-for-auto-guiding-cameras-astronomy","title":"SV165 30mm F4 Mini Star Guide Scope Finder with 120mm Focal Length FMC Coating Aluminium Body 1.25-inch or M42 Mount for Auto Guiding Cameras Astronomy","description":"\u003ch1\u003eSV165 30mm F4 Mini Guide Scope with 120mm Focal Length for Auto Guiding Cameras\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"SV165 30mm F4 mini guide scope with 120mm focal length, aluminium body and 1.25-inch or M42 mount\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/6565\/2025-11-17\/original-image\/55860988-2692-467b-b441-74cbb3df963a.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe SV165 mini guide scope is a compact optical instrument built for auto-guiding cameras used in astrophotography. With a 30mm lens diameter and 120mm focal length, it provides an f\/4 aperture that supports guide star acquisition when paired with a sensitive automatic guidance camera. The front focaliser design allows precise screw focus adjustment, and the thumbscrew lock ring keeps the focus setting stable during a session. The guide scope is compatible with cameras that use a 1.25-inch or M42×0.75 mounting interface, including Orion, ZWO and QYH auto guiding models. Its aluminium profile body is finished with sandblasting oxidation, and the dovetail includes a 1\/4-inch screw hole for mounting. The compact body measures 92×56×78mm and weighs 342g, making it suitable for small imaging rigs where portability and simple setup are practical. The package includes a two-ring bracket, nylon-tipped thumbscrews, a screws tool, a dust cover and a lens cover.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"SV165 30mm F4 mini guide scope with 120mm focal length, aluminium body and 1.25-inch or M42 mount\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/6565\/2025-11-17\/original-image\/5c8e6b91-8a25-4b66-b26b-68b0531f3f88.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe SV165 is built around a 30mm f\/4 optical system with a 120mm focal length and FMC coating. Its construction uses an aluminium profile body with a sandblasting oxidation finish, and the dovetail has a 1\/4-inch screw hole. The focus mechanism is a front focaliser with adjustable rear focus and a thumbscrew lock ring. The supplied two-ring bracket and nylon-tipped thumbscrews help secure the scope without marking the tube.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe main body is made from aluminium profile, a material chosen for a rigid yet lightweight structure. The sandblasting oxidation surface treatment gives the exterior a uniform finish and helps resist handling marks during field use. The optical tube houses a 30mm lens with FMC coating, and the dovetail base includes a 1\/4-inch screw hole for attaching to a mount. The net weight is 342g (0.75lb \/ 12.06oz), and the body size is 92×56×78mm, so the unit remains compact when mounted alongside a guide camera.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eWith a 30mm lens diameter and 120mm focal length, the SV165 offers a short focal ratio of f\/4. The tube travel is 45mm, and the rear focus is adjustable, which helps when setting up different camera configurations. The 1.25-inch or M42×0.75 support interface fits common auto-guiding cameras such as Orion, ZWO and QYH models. The 1\/4-inch dovetail screw hole and the supplied two-ring bracket provide straightforward mounting options on compatible guide rings or dovetail bars.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"SV165 30mm F4 mini guide scope with 120mm focal length, aluminium body and 1.25-inch or M42 mount\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/6565\/2025-11-17\/original-image\/620ffef1-7149-41d3-ad4d-75d16e0c5919.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis mini guide scope is intended for auto-guiding cameras in astrophotography setups. It can be mounted on a guide ring bracket or dovetail bar, and its compact size means it can sit alongside a main imaging scope without adding excessive bulk. The adjustable focus and lock ring help maintain a sharp guide star through a session. The dust cover and lens cover protect the optics when the scope is not in use.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eFor astronomy sessions where auto-guiding is required, the SV165 supports sensitive automatic guidance cameras and helps obtain a guide star. The front focaliser with helical focus adjustment and thumbscrew lock ring allows precise focus changes without tools. The 1.25-inch or M42×0.75 interface connects to compatible cameras used by Orion, ZWO, QYH and similar systems. The 45mm tube travel provides room for focus adjustment across different camera and adapter combinations.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eThe SV165 can be used at home for setting up a small guide scope on a compatible mount. Its 342g weight and 92×56×78mm body make it easy to handle and store between sessions. The supplied two-ring bracket, nylon-tipped thumbscrews and screws tool allow basic assembly. The dust cover and lens cover help keep dust off the lens and tube when the scope is stored indoors.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"SV165 30mm F4 mini guide scope with 120mm focal length, aluminium body and 1.25-inch or M42 mount\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/6565\/2025-11-17\/original-image\/66d4e2e7-9dbe-4498-9ec0-14033290655f.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe SV165 combines a compact aluminium profile body with a 30mm f\/4 optical system and a 120mm focal length. Its front focaliser and adjustable rear focus give controlled focusing, while the thumbscrew lock ring secures the setting. The included mounting accessories and protective covers support a straightforward setup and storage routine. The 1.25-inch or M42×0.75 interface covers a range of auto-guiding cameras including Orion, ZWO and QYH models.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe aluminium profile body with sandblasting oxidation finish is designed to be wiped clean with a soft dry cloth. The supplied dust cover and lens cover help reduce dust buildup on the optics and tube when the guide scope is not in use. The two-ring bracket and nylon-tipped thumbscrews can be reused for mounting, and the screws tool allows basic adjustments. No specialist maintenance is stated beyond keeping the lens and body free from dust and moisture.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eChoose the SV165 if you need a compact 30mm f\/4 mini guide scope for an auto-guiding camera with a 1.25-inch or M42×0.75 mount. It offers a 120mm focal length, FMC coating, front focaliser with adjustable rear focus, and a thumbscrew lock ring. The aluminium profile body has a sandblasting oxidation finish, and the 1\/4-inch dovetail screw hole plus two-ring bracket simplify mounting. The 342g weight and 92×56×78mm size make it a practical addition to small astrophotography setups.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"SV165 30mm F4 mini guide scope with 120mm focal length, aluminium body and 1.25-inch or M42 mount\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/6565\/2025-11-17\/original-image\/d87acf14-d47d-4e44-8346-a4ddb6187a8f.webp\"\u003e\u003c\/div\u003e","brand":"b1iedb-mh","offers":[{"title":"Star finder","offer_id":55906098741577,"sku":"CJMP168319401AZ","price":62.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3643\/3225\/files\/620ffef1-7149-41d3-ad4d-75d16e0c5919.webp?v=1794416157","url":"https:\/\/hhomeenjoy.com\/products\/sv165-30mm-f4-mini-star-guide-scope-finder-with-120mm-focal-length-fmc-coating-aluminium-body-1-25-inch-or-m42-mount-for-auto-guiding-cameras-astronomy","provider":"hhomeenjoy.com","version":"1.0","type":"link"}