On no 1, the pattern can be generated internally if you get the LG AU810PB PJ. So download is free from calman website
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Yes u need a good colorimeter that’s fast and does HDR
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Availability of picture modes help, expert dark bright, cinema and cinema one, filmmaker mode, game mode , standard, etc etc. Very helpful indeed
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If u r using LG AU810PB projector, this is not a problem. All sources from Apple TV to Xbox to Oppo, all able to communicate with the LG. Autocal is a breeze…
I’m not sure how Sony and JVC works, no experience there . My first PJ is the BenQ , this LG is only my second PJ.
So far it works with all the sources I’ve calibrated