Changing lenses on your camera when you are in the field can cause dust and debris to land on your sensor when it is exposed. The 12-pack of Type 4 Sensor Swab Ultra from Photographic Solutions features 33mm wide swabs for medium format sensors. They're designed to clean oil, dust, and debris.
You can also use these swabs to clean other sensitive or hard-to-reach optical surfaces. These swabs have pointed corners that are designed to more efficiently clean the space between the sensor and the baffle without leaving scratches.
UPC: 795122135043