{"product_id":"m42-to-m42-adjustable-focusing-helicoid-17-31mm-macro-extension-tube-black","title":"M42 to M42 Adjustable Focusing Helicoid 17-31mm Macro Extension Tube Black","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eThis focusing Helicoid tube is made with standard M42 mount.\u003cbr\u003eYou can use M42 screw mount lenses, such as Carl Zeiss or Pentax 42mm screw mount lenses, and even enlarger lenses.\u003cbr\u003eThe length of this Helicoid tube 17mm (min) to 31mm (max), it offers a total of 14mm movement distance for lens focusing.\u003cbr\u003eEasy to Install:Mount the Helicoid tube to your lens, and then the combination of lens and Helicoid tube to the camera.This Helicoid tube is useful for those lenses without focus ring.\u003cbr\u003eIt could be used as Macro barrel and offers fine focus control for macro photography.It will be better when you use it with filter adapter together.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eMaterial:Aluminum Alloy\u003cbr\u003eColor:Black\u003cbr\u003eSize:5.6*2cm\u003cbr\u003eSuitable For:\u003cbr\u003eLens:M42 Mount Lenses\u003cbr\u003eCameras: M42 Mount Cameras\u003cbr\u003eSettings:\u003cbr\u003ePut red marks of the adapter and lens collar together.\u003cbr\u003eTurn the adapter anticlockwise till the fixative click.\u003cbr\u003eMosty it will use Manual or AV mode.\u003cbr\u003eRemoving:\u003cbr\u003eTo remove the adapter you should unpress fixative pin and turn the adapter clockwise.\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e1 Piece M42-M42 (17-31mm) Adjustable Focusing Helicoid Adapter\u003c\/p\u003e\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e1. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other function will not operate correctly while using this adapter.\u003cbr\u003e2. In this case \"Stop-down mode\" will need to be used when metering since the lens doesn't have the ability to have its apeture controlled by camera body.\u003cbr\u003e3. You can shoot with manual mode or aperture priority mode.\u003c\/p\u003e","brand":"General","offers":[{"title":"Default Title","offer_id":50138180223262,"sku":"77005823","price":5376.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/9266\/7678\/files\/77005823_1_image.jpg?v=1757672019","url":"https:\/\/uniqbuy.in\/products\/m42-to-m42-adjustable-focusing-helicoid-17-31mm-macro-extension-tube-black","provider":"UNIQBUY","version":"1.0","type":"link"}