I’ve completely given up on the panorama feature in HTC’s camera software for the EVO 4G LTE. It seems to decide randomly how many pictures it will take to stitch together regardless of how much you move the camera or when you press the shutter button for a second time.
Unpredictable Results = Useless.
Fortunately there’s Camera ICS, which is essentially an enhanced port of the stock Android 4.0 camera, including it’s simple panorama mode. Just select Panorama, press the shutter button, and start panning the phone - the software indicates if you’re going to fast or not for the conditions. When you’ve captured what you want, press the shutter button again and you get exactly the results you were expecting.
While the panorama mode seems to work fine on my EVO 4G LTE, the standard photo setting seems to cast an odd greenish tinge on indoor photographs (haven’t tested it outside yet). So right now I’d only recommend this for specifically shooting panorama shots on the EVO, but even with that limitation I’m still going to pay the 99 cents for the Camera ICS+ version, because that’s how frustrated I am with HTC’s panorama function.
Note this also works on Gingerbread phones as well, not just Ice Cream Sandwich, so if you are looking for a new camera app on a 2.3 or earlier phone give this a try.