{"product_id":"lens-focus-calibration-tool-and-alignment-ruler-fo-2169","title":"Lens Focus Calibration Tool And Alignment Ruler Folding Card Set 28x18 Cm Pack Of 2 For AF Check And Precise Focusing Perfect For Snaps Portraits And Macro Photography","description":"\u003cdiv\u003eLens Focus Calibration Cards - AF Check, Pack of 2, 28x18 cm\u003cbr\u003e\n✔️ 28.1x18 cm white calibration ruler, 2-pack for AF Fine Tune\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis compact ruler helps you verify autofocus accuracy and is handy for camera-lens AF calibration, especially with shallow depth of field. Use it to measure how far off the focus is for a given camera and lens combination, then adjust AF micro-adjustment settings on supported cameras (Nikon AF Fine Tune; Canon\/Sony AF Micro Adjustment) to align sharpness with the 0 mark.\u003c\/p\u003e \u003cp\u003e✅ Size: 28.1 x 18 cm\u003cbr\u003e✅ Color: White with Black Markings\u003cbr\u003e✅ Package: 2 x Lens Focus Calibration Card\u003cbr\u003e✅ How to use: Mount camera on tripod, focus on QR-Code in center, shoot at widest aperture, compare sharpness at the '0' mark\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a lens focus calibration tool used for in photography?\nThis handy device helps you verify autofocus accuracy across camera bodies and lenses, and guides AF adjustments to hit sharpest focus.\u003cbr\u003e- Identify front or back focusing with your current camera-lens pairing\u003cbr\u003e- Guide AF micro-adjustment to align sharpness with the 0 mark\u003cbr\u003e- Works with Nikon AF Fine Tune or Canon\/Sony AF Micro Adjustment when supported\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49134475542763,"sku":"VXB07B5ZHF2P","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71CFDKSpd4L.jpg?v=1785582206","url":"https:\/\/vxb.com\/products\/lens-focus-calibration-tool-and-alignment-ruler-fo-2169","provider":"VXB Bearings","version":"1.0","type":"link"}