Surprisingly accurate on my devices I tested this application against several known color temperature sources and it reported the color temperature/Kelvin within a very small variance to the expected number. Nexus 5 running stock Android 6.0.0 rooted it was consistently within +/-100K. Nexus 7 (2013) stock Android 6.0.0 rooted it was less accurate varying by +/-200K. Samsung S5 Android 5.1 consistent within +/-200K. Surprise results on Amazon Fire Phone FireOS 4.6.3 rooted varying +/-100K.
Can tell the Difference I just bought this and took photos using my Sony A35 with Minolta 50mm f2.8 prime lens comparing it to the Auto function and various other settings. Used f stop of 4 for all comparison photo's and then shutter speed to match f stop. Tried it out first just analyzing the subject. The color temperature was definitely off when compared to Auto. Second series I followed the instructions by taking a picture of white paper placed in front of the object first to analyze. The difference is between night and day. The photos I took using the Color temp settings looked like I had used fill flash. The colors were more true than using the Auto feature. It also brought out more detail than the auto function. I would post comparison photos but this does not let me. I would recommend this App, but if you plan to rely on it I would make sure you always carry a white piece of paper with you.
Amazing. Simply amazing Comes in handy working as a cinematographer. May not always be 100% dead on, but the preset suggestion is always right so it will give you a starting point when something is wonky. Im suprised there arent more apps thay do this. Worth every penny.
Need to be able to calibrate I downloaded this app and tested it in a television studio where the lighting was set to 2800k using a Sekonic C-500 color meter. The app was at least 1k cooler than the actual color temperature. If you just had a way to calibrate it, it may be of some use..... but currently it is useless.
BE CAREFULL This app on a galaxy note 2 doesn't work. everything is 2200 Kelvin off. Program needs a way to calibrate against whatever the phone or camera is doing. but I tested it against my REAL color spectrometer and it just failed horribly.
You have to know how to use it When using this app, you must take a reading from where the camera is positioned. For instance, if the camera is in a doorway and shooting towards windows, place a white card (or gray card) in front of the lens of the camera and take the reading. One of the biggest problems with ANY colorimeter, are the bulbs being used today. Take average readings of all light in the room, You will get anywhere from about 3000 - 42000 and you must average that out to midway but must also guess at which are the strongest lights. Nothing is perfect these days when shooting indoors but I find this one gets me close and easier to process. Much more reliable than relying on most camera AWB feature. They've NEVER worked for me.
MONEY BACK GUARANTEE - If you are not happy with the performance of the app on your device, let me know and I give you a full refund! Valid within a whole month from the date of purchase.