One of my cameras is a nice old camera with great image quality, but it only shoots in 720p. Is there a decent way to convert the footage to 1080? Not concerned with image quality but rather, will there be a problem editing the 1080 and 720 footage together in Adobe and getting a 1080 output?
Scaling up in Premiere Pro does a pretty darn good job. You could also use "detail preserving upscale" or there are a couple of third-party options from folks like Red Giant.