The Photographic Solutions Type 4 33 mm Sensor Swab Ultra is a specialized cleaning tool for medium format camera sensors, packaged in a convenient 12-pack. With an exact width of 33 mm, these swabs effectively clean both CCD and CMOS sensors and are equally suitable for other sensitive optical surfaces. The innovative tip design allows access to tight spaces between sensors and apertures without the risk of surface damage. Manufactured in cleanroom environments and individually sealed, these swabs meet exceptional cleanliness standards. The highly absorbent material prevents fiber residue and ensures thorough dirt removal. The textured surface enhances cleaning efficiency, while the ribbed handle provides better grip for precise applications. Before use, consult your camera manual for proper sensor exposure procedures and ensure a full battery charge. First, remove loose particles with a blower or brush. Gently swipe the swab over the sensor in one direction, then repeat with the clean side in the opposite direction. Dispose of after single use to maintain optimal cleanliness. The welded seam construction stabilizes the fabric while the tip design ensures comprehensive corner cleaning. Zoom lenses and bellows can increase contamination frequency, making regular cleaning advisable. This sensor maintenance tool offers reliable performance when used correctly.