Hey all, I'm new to these forums and very new to photography. I just got my new Pentax k-x with the 18-55mm kit lens a few days ago and have shot only around 100 shots, so far not too many keepers, haha. Anyway, I decided to have a go at some pp using Picasa and I started to notice some patches in my photos that are constantly darker in contrast than the surrounding area. You can see one fairly clearly in the upper left.
I'm thinking that it may just be dust on the lens or sensor, but again, no experience here and I just want to make sure it isn't potentially anything serious.
Thanks for any input