The smarter focus tool\n\nSpyderLensCal™ 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.\n\nThe problem:\nPhotographers have enjoyed the benefit of autofocus for 25 years now, but many still struggle with its accuracy and repeatability.\n\nThe solution:\nMany 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 (learn more link)\n\n- Fast, easy solution for your interchangeable lenses and recent DSLR bodies provides razor-sharp auto-focusing, using modern DSLR autofocus micro-adjustment technology\n- Compact, lightweight and durable, with integrated level and tri-pod mount, making this the most convenient way to adjust your own camera gear\n- Save time and hassle of sending your equipment in for service. Now you can check or calibrate your own lenses\n- Accurate and repeatable Calibration of your lenses and recent DSLR bodies\n- Worthwhile investment to ensure your camera is focusing your lenses as precisely as possible