Once installed, the target can be printed off and installed on a convenient surface. The software currently only supports Nikon or Canon cameras. I believe that this can be changed at a later date if required. Once installed and activated, the user need to specify whether it will be used with Nikon or Canon cameras via the preferences. Once installed, it prompts for activation via a key that is supplied via email. It should be noted that it is available in both Windows and Mac versions. Purchase is via download, and if the software is to be used on a Mac, also requires the download and installation of the Mono framework in order to function. Each is supplied with high resolution pdf and png targets that can be printed off for the tests. The latter two offer an automatic option, with the Pro version offering additional test options and more control of the testing process. Reikan offer three versions of the program, Standard, Plus and Pro. The software then analyses the images and “chooses” the setting that gives the best results. This uses control software to take control of the camera and shoot a series of images of a calibration target at different AF fine tuning increments while tethered to a computer. Reikan offer a software based solution to autofocus calibration called FoCal. The increments normally take the form of + or - adjustments, on a scale of 20 units either side of 0 or neutral (+20 to -20). The problem typically is how to go about finding what increment to dial in. Most SLR cameras offer the option of fine tuning the autofocus accuracy somewhere in the menu system. One area that this is perhaps most noticeable in, is the autofocus accuracy. It is a little known fact that most cameras and lenses are all very subtly different, even within the same model, and so will behave (again subtly) differently on different bodies. The advent of super high resolution cameras has forced people to re examine their lenses, both in terms of performance and compatibility. Review: Reikan FoCal Pro AF calibration softwareīy adamhanlon Monday, September 29th, 2014

Reikan focal pro lens calibration tools