And you can view marked image files in slideshow with Irfanview using :TotalCommander since version 6.5 can be used as a fine viewer for DigiCam images.
On the left pane the preview image files are displayed in ThumbnailView, and on the right panel the actual image is displayed in QuickView.
menu1=IRFANVIEW SLIDESHOW
cmd1=C:\IrfanView\i_view32.exe
param1=/slideshow=%L