![]() It had positive reviews and included a built-in bubble level, which was a deal-maker. To calibrate my autofocus lenses, I ended up ordering a Datacolor SpyderLensCal from B&H. With three DSLR cameras and six autofocus lenses, plus a 1.4x teleconverter, outsourcing the work would quickly add up even with a price break. I have heard of camera repair shops offering a calibration service often for one camera body and two lenses around $100. My (Nikon) cameras have an "Autofocus Fine-Tune" setting which I had never attempted to use. I decided to try calibrating my gear before sending anything out for repair, and I'm glad I did. The teleconverter had always been slightly out of focus, and with larger resolution image sensors, that issue was even more obvious. It reminded me of my 1.4x teleconverter that I've never been impressed despite reviews stressing preservation of detail. ![]() ![]() I wasn't sure if the lens needed a repair, but my gut said the lens and camera combination needed a calibration, as both components worked well apart from one another. The issue only appeared in that one combination, and the focus was practically useless, leaving me to focus manually. While photographing at a job recently, I ran into a back-focus issue with a camera and a telephoto lens.
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