I just bought a pentax k-x bundled with 2 lenses and noticed a spec of lint inside one of the lenses. The spec does not seem to budge and is probably caught between lenses (see pics). Does not seem to affect pictures, or I probably don't notice it. Will this spec be a problem in the future? Should I get a replacement or should I not be worried about it? Is this under warranty. I am new to DSLRs, and this is my first time using one. Thanks in advance.
I don't have a macro lens and tried my best to take a shot of the lint using the basic 18-55 lens.
sample pic taken wit 55-300 lens: