Focus the lens to infinity and then let the camera autofocus on the target and take an exposure.Place your camera on a tripod and the test target on a flat surface.Let’s, quickly look at what you need to perform AF calibrations the old way. A Quick Review of Traditional Method and its Problems Further, because this approach doesn’t require reading a ruler off towards the edge of the frame, precise alignment and target design is much less important and setup is a snap. Even better, it does this automatically and the result isn’t a hard to interpret picture but an actual setting for your camera. What Helicon Remote’s AF Calibrator does is use the camera’s built and its own contrast detection algorithms to determine what the sharpest focus setting is without having the user guess. Even better, there is now software that automates the process and that software is the AF Calibrator feature in Helicon Remote, part of Helicon Soft’s Helicaon Focus. The solution comes from the ability to remotely control a tethered camera’s focus while looking at the live view image on the computer. It just seems that nobody had really thought of it until recently. However, there has been a solution all along. The worst part is that the whole system is largely open to interpretation. In addition, most targets aren’t large enough to test at actual working distances so there isn’t any guarantee that the results are going to be good for normal photography anyway. It’s finicky, time consuming and requires a great deal of precision to setup and execute properly. I’ve previously written about my frustrations with calibrating my camera’s auto focus system. Live View Focus Testing in Helicon Remote.
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