The updates on the EF 70-200 F/4 IS II USM are more substantial. Optical image stabilization goes all the way up to 5 stops—especially useful due to the slower aperture—features three IS modes, and the stabilization is now quieter when it's working. That's great news for photographers shooting weddings, intimate performances or wildlife. The lens features one fluorite and two UD elements, a shortened minimum focusing distance to 1m, a Super Spectra Coating technology to minimize ghosting and flare, a circular nine blade aperture. It's built from 20 elements in 15 groups, a fluorine coating on the front and rear elements to reduce visibility of smears and fingerprints and an inner focusing system with Ring Ultrasonic Motor.