Sensor and Mirror Dust

[Chris102]

I just switched the lens on my camera, and I noticed some small specs of dust on the mirror. How can I check to see if these small particles are affecting my photos?

[T-Bird76]

If they’re on the mirror they won't show on your pics. However if you have dust there you have dust on your sensor. This is what I do. I take a picture of a clear blue sky in F22 in manual focus set to infinity. I then take the picture in Photoshop and equalize it. Then I use a few choice words and proceed to blow the sensor with a blower.

[wunaladreamin]

Try this, it's inexpensive and it's the best thing in my camera bag (well, besides the camera). Giottos Q Ball w Tilting Nozzle CCD Sensor/lens cleaner. It can be had on eBay for about $15.