EF refers to the EF 28-80mm f/3.5-5.6 IV, while EF-S refers to the EF-S 18-55mm f/3.5-5.6 II, and Sigma refers to the Sigma 17-70mm F2.8-4 DC Macro OS HSM.
The 7D camera was set to ISO 100. All lenses were set to approximately 55mm focal length, physically supported and used without image stabilisation. Two regions were compared as highlighted here:
Old refers to the 75-300mm f/4-5.6 II, while new refers to the 70-300mm f/4-5.6 IS USM. Pictures were converted from the 7D’s full resolution RAW to JPEG with identical settings, aligned in Photoshop, then cropped to a 480x480 pixel section at 100% zoom.
The images presented are taken at ISO 1600 in the middle of the field of view, approximately from the area highlighted here:
I bought my first camera, a Canon EOS 300 35mm film body, back in 1998 along with a 28-80mm f/4-5.6 lens and 75-300mm f/4-5.6 II lens. These are both “consumer grade” lenses which came as part of a kit, but they fared me very well for a good number of years.
