{"product_id":"adjustable-iris-aperture-diaphragm-adapter-m30-m37-precise-control","title":"Adjustable Iris Aperture Diaphragm Adapter M30-M37 - Precise Control","description":"\u003cp\u003eOur review of the Adjustable Iris Aperture Diaphragm Adapter looks at whether this small, machined adapter is a practical upgrade for night vision and optics work. It is aimed at technicians, hobbyist optics users and night vision operators who need a compact, repeatable way to control light entering an eyepiece or lens. The single biggest reason to buy is the precise, mechanical iris control that spans a useful range from a 1.5mm minimum to a 26mm maximum diameter, offering repeatable stops and a direct handle for quick adjustments.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAdjustable iris aperture:\u003c\/strong\u003e Allows fine, mechanical control of the aperture from 1.5mm to 26mm so users can dial in exposure and depth of field precisely.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eM30 to M37 compatibility:\u003c\/strong\u003e Threads cover M30 to M37 sizes which makes the adapter useful for a range of eyepieces and optics without permanent modifications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRugged construction:\u003c\/strong\u003e Built from aviation metal for reliability in field use, offering durable performance in routine handling and attachment cycles.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSimple operation:\u003c\/strong\u003e The small handle gives direct, tactile control of the diaphragm so adjustments are quick and repeatable under low-light conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAccessory bundle:\u003c\/strong\u003e Ships with two adjustable iris units, two 37mm UV lenses and two cleaning cloths so pairs of optics can be matched or used in combination right away.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis adapter is best for users who work with PVS-14 style night vision devices, lens modules and other small optical systems needing a compact, threaded iris. It suits optics technicians, night vision operators and hobbyists who require a metal, repeatable diaphragm that can be fine-tuned in the field.\u003c\/p\u003e\n\u003cp\u003eUsers who need electronic or infinitely variable aperture control, or who require factory-matched optics from a camera manufacturer, should look elsewhere; this product is a manual, mechanical accessory intended for hands-on adjustments and compatibility with M30-M37 threaded components.\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\u003ePrecise mechanical iris control that covers a wide aperture range from 1.5mm to 26mm.\u003c\/li\u003e\n \u003cli\u003eDurable aviation metal construction suitable for rugged field use.\u003c\/li\u003e\n \u003cli\u003eIncludes two iris adapters and two 37mm UV lenses plus cleaning cloths for immediate use in pairs.\u003c\/li\u003e\n \u003cli\u003eSimple handle operation lets users change diaphragm size quickly and directly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eManual adjustment means no electronic or motorized control for automated systems.\u003c\/li\u003e\n \u003cli\u003eLimited to components that accept M30 to M37 thread sizes, so adapters may be needed for other mounts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eAdjustable iris diaphragm adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAperture range\u003c\/td\u003e\n\u003ctd\u003e1.5mm to 26mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eThread sizes\u003c\/td\u003e\n\u003ctd\u003eM30 to M37\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAviation metal\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIncluded items\u003c\/td\u003e\n\u003ctd\u003eTwo iris adapters, two 37mm UV lenses, two cleaning cloths\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOperation\u003c\/td\u003e\n\u003ctd\u003eManual handle for aperture adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe adjustable iris adapter is a pragmatic, well-built accessory for anyone needing manual, repeatable aperture control on small optics and night vision devices. It offers strong value for technicians and hobbyists who work with M30-M37 threaded components and want a rugged, tactile solution rather than an electronic alternative.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used with PVS-14 night vision devices?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed for compatibility with PVS-14 style devices and similar optics that accept M30 to M37 threaded adapters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is included in the package?\u003c\/strong\u003e\u003cbr\u003eThe pack includes two adjustable iris units, two 37mm UV lenses and two cleaning cloths so they can be used in combination or as matched pairs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the aperture adjusted?\u003c\/strong\u003e\u003cbr\u003eThe aperture is changed manually using the small handle on the diaphragm, giving direct and repeatable control from 1.5mm to 26mm.\u003c\/p\u003e","brand":"FotoAene","offers":[{"title":"Default Title","offer_id":48667451064539,"sku":"B0F84985T6","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71wB8CF4QRL._AC_SL1500.jpg?v=1778679269","url":"https:\/\/gearmusthave.com\/products\/adjustable-iris-aperture-diaphragm-adapter-m30-m37-precise-control","provider":"GearMustHave","version":"1.0","type":"link"}