burkphoto wrote:
http://www.cleaningdigitalcameras.com
https://photosol.com
The first link takes you to a guide to cleaning dSLR and Mirrorless camera sensors.
The second site takes you to the source of the cleaning supplies I use.
I've cleaned many sensors. It's an easy procedure, but you must pay attention and use a gentle touch. Sometimes, dust can be stuck on pretty firmly, so you have to clean multiple times. Have plenty of options on hand. Start with a blower bulb to knock off grit and surface dust. End with wet cleaning (purified methanol on a lab-grade, lint-free swab) if needed. That usually removes oil, grease, and stuck-on goo.
MOST important is to cap your camera body when no lens is attached, AVOID changing lenses outdoors or in dusty, windy environments, DISCHARGE yourself of static before changing lenses or starting a cleaning, and never re-use a swab on a sensor.
http://www.cleaningdigitalcameras.com br br https... (
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Wish I could avoid changing lenses outdoors. I mostly do but when I'm hiking I only carry one body so if I need to change the lens, the best I can do is try to shelter the operation. But the results are clear. Outdoor lens changes are the culprit!