Adding to the photography gear comparison tools
available on the site is the new Flash Product Images
Here you will find images of many recent Canon flashes and flash transmitters
along with the ability to visibly compare them with any other included model (similar to the Lens Product Images
page). Access to this tool is, as usual, found on the main tools page and from within individual flash reviews.
Please note that some of the older images in this tool were not captured to the precision of my current standards, so there may be a very slight size difference in size and/or alignment accuracy shown in some comparisons. The feature differences are quite clear.