![]() Using teleconverters with zoom lenses is a similar process, calibrate the zoom lens bare and as a separate calibration zoom lens with teleconverter (see link on zoom calibration below). Download Reikan FoCal Pro 2.9 Version (cracked) Tune your camera autofocus at the touch of a button. If you are going to buy Focal then I would suggest the more expensive Pro version because the. Major problem with it is achieving the proper test environment with suitable lighting. Focal is no more accurate than manual methods but it can be faster to get the desired result. The distance required for calibration should take in to account the extended focal length, for example, 1.4x TC and 200mm lens the focal length would be 280mm (see link on calibration distances below). p.1 4 p.1 4 Reikan FoCal Pro Focus Calibration Software. Once calibrations are complete the camera automatically recognises each combination and automatically applies the correct adjustment as needed. ![]() To use an example, given a 200mm prime lens and a 1.4x TC and a 1.7x TC.Ĭalibrate each of the following combinations: ![]() FoCal can be used to calibrate auto focus with tele-converters (also known as lens extenders or ‘TC’).ĭigital cameras which support tele converters know which lens is attached and additionally know when a lens is attached with a tele converter.Ī separate calibration value is stored inside the camera for the bare lens and for lens+telecoverter combination.įocus calibrate the bare lens normally, then as a new calibration attach the teleconverter and calibrate again. ![]()
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