Are you noticing spots on your photographs in the same location (the size and darkness of the spots can vary depending on aperture)? Sensor dust can never be seen through the viewfinder, it only shows up in images. Even then, you might need to zoom in to 100% to see it. This is typically dust on the sensor and we can clean the sensor on any DSLR or Mirrorless Camera.
If you're using an SLR camera, you'll eventually encounter spots due to a dirty camera sensor. If it hasn't happened yet, don't worry — it will. When it does, you'll need to know if what you're seeing is indeed from sensor dust, or is instead the result of a dirty viewfinder, mirror or lens.
An easy test to see if you have a dirty sensor:
• Set camera to Aperture Priority Mode
• Set your ISO to 100 or 200.
• Turn off Auto ISO.
• Set camera to manual focus and move focus to infinity.
• Set your aperture to the largest number (F/16 or F/22 is normally minimum on most lenses.)
• Take an exposure of solid white area or a bright light source.
If you are outside, point your camera up at the clear blue sky and take a picture. If you are indoors, find plain white paper, zoom in all the way so that the paper fits the whole frame, then make sure that the lens is completely out of focus and take a picture. If you are in front of a computer, open up a text editor such as Notepad, maximize it to the screen and then get as close to the monitor as possible so that only the white color is visible in the frame. Make sure that your focus is way off (completely out of focus) – that way only dust particles will be visible.
After taking these steps, if you have debris on your camera sensor, it should show up on the test photo. You mat need to zoom in on the image and scroll from left to right and top to bottom. If you do see dark spots, it is time for a sensor cleaning.
Some people clean their own sensors, and if not done right, can actually make the sensor dirtier - and if not careful, you can cause damage to the camera sensor like scratching, or cleaning fluid can leak into the camera.
We offer professional sensor cleaning on all DSLR models from all Manufacturers, both APS-C size and full frame. The Camera will need to be left at the store and can take up to 48 hours to complete.