Well just about the whole area is a photo op.
Anywhere on the A82 road, especially between Ranoch moor and Glen Nevis is spectacular.
What must be the most photographed cottage in Scotland is along here . Black Rock Cottage - Just take the turn off to the ski centre and park opposite the cottage for spectacular shot of mountain and cottage.  A Google image search will show you the pic. 
Isle of Skye - well countless photo ops there too.  Eilean Donan castle next to the road on the way there,  then on Skye just about everywhere you look. Elgol and Portree being very popular places.
All around Loch Levin you will find great places to photograph there are just too many to even contemplate listing, it will take you many years of happy snapping to get around them all.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html