You have to hold the plug really still when you take those pic's or they turn out blurry like that. You could use a mini tripod and let the timer take the pic. I just set the plug down somewhere...put my camera on manual focus...and dial the focus as close as possible. You can get some good close-up pic's but they take a little effort.

Here's three different pic's of the same plug. I think it was my DLE-55. The first one was the clearest. The lighting and shot angle can effect the color that the plug looks. That middle one's a little blury. To the human eye this plug had a beautiful light chocolate color to it. The engine was running t!ts.