Comparison of Canon midrange zooms
This is a comparison of a Canon EF 24-105/4.0 L IS USM versus a EF 28-105/3.5-4.5 USM and a EF 28-135/3.5-5.6 IS USM shot at different focal length and at different f-stops using a Canon EOS 10D set at ISO 100.
A EF 17-35/2.8 L USM, a EF 50/1.4 USM, and a EF 100/2.8 USM macro was also included at the appropriate focal lengths.
The photographed scene:
The Greenhouse in Copenhagen Botanical Gardens
Shot with EF 24-105/4.0 L IS USM @ 24 mm and f. 8.0
The camera was tripod mounted. Images were captured as RAW and converted to 24 bit TIFF files using DPP 1.503. Sharpness was set to 0 (no sharpening) and no other postprocessing has been applied to the images. 200x200 pixel crops were excised from the centre and periphery and saved as TIFF prior to conversion as JPEG files.