Greybark,
As said above, if you worry about the ethics of taking a photo of a wild steelhead after fooling it into thinking it is going to get a tasty morsel, impaling a sharp hook into its lip, playing a tug of war against its will and handling the fish to unhook it, dear sir, respectfully, you are either a hypocrite or out of touch with reality.
If handled properly, lifting a fish out of the water for a couple of seconds to take a picture won't hurt the fish at all.
If you are genuinely concerned about the well-being of the fish, do what is right and STOP ANGLING altogether, or at least stop angling in waters where there is a chance of you hooking into a fish you can't keep for the table.