I am not here to advocate the usage of particular programs but I can only recommend you FastStone if you’re looking for a free replacement of your current image viewer. One reason for that is also the interface and keyboard shortcut/mouse controls this program offers. See below…
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ACDSee if one of the best commercial image viewers (and more) out there. Squeeze more out of it with the hotkeys below.
If you do not need more than a basic photo viewer you can just as well settle with Windows Picture and Fax Viewer which ships with Windows OS. Here is its shortcut key list.
Irfan View is one of the most popular freeware image/graphic viewers . Bellow is the full list of keyboard shortcuts :