I've had pretty good luck engraving photos on wood so far. Nothing special, just digital photos lasered with little editing. Then I got a request from a friend at work and he emailed me the photo and away I went. This was the result...IMG_2036E.jpg
It was AWEFUL! I hated that I had just ruined a plaque and didn't want to keep trying with no success...so off to do my homework I went. I found a great tutorial at engrave.ca and I tried it again with their suggestions. And here is the final result...IMG_2047E.jpg
It just goes to show...when all else fails, read the instructions