Category - Canon SD4000 vs. S90

I thoroughly enjoy the SD4000 and recommend it to others if it meets their photographic style and needs. I’ve written about its strengths and weaknesses elsewhere in this Blog section and consider it a capable, easy-to-use digital camera.

However my copy has a lens defect and others should check their SD4000 to ensure the lens is okay. The defect, a fuzzy spot, can be seen on the LCD when photographing solid areas such as a sky. The unsightly spot also shows up in photos as seen in the 100% crop samples on this page.

I contacted Canon and here’s what they responded via email:

Clean the lens first

Canon first recommends cleaning the lens to make sure that this is no debris on the lens. They recommend the following steps to clean the lens:

  1. Carefully blow off any dust or dirt, using a blower brush or (very carefully!) compressed air.
  2. Place a drop of lens cleaning fluid on a clean piece of lens cleaning tissue, or blow gently on the lens so that moisture condenses on its surface.
  3. Gently wipe the lens surface from the edges toward the center of the lens, with a lifting rather than rubbing action.

Canon also suggests that for best performance, use only the Canon Lens Cleaning Kit which contains cleaning solution, lens tissue and blower brush. A micro-fiber cleaning cloth is a good alternative to lens tissue, and requires no lens cleaning fluid.

Canon’s lens cleaning kit is certainly fine but, quite frankly, you can’t go wrong with any name brand kit.

If the problem persists

If after cleaning your lens the problem persists then the SD4000 needs servicing. Exchange it if you can or contact Canon for their nearest Factory Service Center.

The spot is such that is can be cloned out in most images, but not everyone has this skill. But that’s not the point. When you buy a brand new digital camera you should expect it to be in top-notch shape, not have a defect!

Here are additional suggestions for testing a new camera.