Product DescriptionSpyderLensCal provides a fast, reliable method of measuring the focus performance on your camera and lens combinations. It allows photographers to obtain razor-sharp focusing or check to see that their lenses are working at their peak performance. This device is compact, lightweight and durable, with integrated level and tri-pod mount. Photographers have enjoyed the benefit of autofocus for 25 years now, but many still struggle with its accuracy and repeatability. Auto-focus is a great convenience, especially in fast shooting situations. Many newer DSLR cameras now offer a method to correct this issue: they allow you to store auto-focus correction data for several of your most important lenses. This feature is likely to become more common, and appear in other camera types. SpyderLensCal was designed to aid in correcting the auto-focus on your camera and lens combinations and storing them in your camera?s custom settings. System Requirements: DSLR or other camera with capability to store lens auto-focus corrections: Auto-focus lenses capable of being driven by this camera: No OS requirements, as the tool works entirely within the camera?s menu.From the Manufacturer The Datacolor SpyderLENSCAL provides a fast, reliable method of measuring the focus performance of your camera and lens combinations. Use SpyderLENSCAL to obtain razor-sharp focusing or check to see if your camera's lenses are working at peak performance. This device is convenient, lightweight, and durable and includes an integrated level and tripod mount for easy setup. SpyderLENSCALAt a Glance:Fast, easy solution for calibrating your camera and lensesEasily store corrections in your camera's custom settingsFeatures integrated level and tripod mountAffordable way to ensure sharp focusingOne-year warranty SpyderLENSCAL lets you check and calibrate lenses at home. . Easily store lens corrections in your camera's custom settings. . Easy Solution for Achieving Sharp Focus SpyderLENSCAL offers a fast, affordable solution to achieving sharp autofocusing using DSLR autofocus micro-adjustment technology. The device allows you to correct the autofocus on your camera and lens combinations and store them in your camera's custom settings. Convenient, Lightweight, and Durable Lightweight and durable, SpyderLENSCAL comes equipped with an integrated level and tripod mount, making this the most convenient way to adjust your own camera gear. With SpyderLENSCAL you save yourself the time and inconvenience of sending your equipment in for service by checking and calibrating your own lenses at home. Refocus Lenses in a Few Easy Steps Refocusing your lenses can be achieved in a few easy steps. Align SpyderLENSCAL with the camera using a tripod, desk, table, or shelf. Your camera and SpyderLENSCAL should be at the same height and distance that you normally shoot images with each lens. Take a picture, autofocusing on the target. Zoom in on your image and check to see where the real focus is. The scale on SpyderLENSCAL will show you how much back and front focusing you have. Go into the camera's menu and adjust the focus accordingly. Repeat with all your lens combinations, storing each correction in your camera's custom settings.System Requirements and Warranty Information Successful use of SpyderLENSCAL requires a DSLR or other camera able to store lens autofocus corrections, as well as autofocus lenses capable of being driven by that camera. There are no OS requirements, as the tool works entirely within the camera's menu. SpyderLENSCAL comes with a one-year warranty and free online support. What's in the Box Datacolor SpyderLENSCAL and quick-start guide. Ensure your camera focuses accurately. . Other Products by DataColor: Light balance reference tool. Complete color management. Color color standard tool. Color correction for HDTV. Color correction for printers.