Quote Originally Posted by swamidog View Post
you don't need cubes and prisms.
What lenses are you using for each colour? I used to assume that the same might work for all with a broadband coating, but there's so many to choose from now. Did you end up with a choice based on lots of trial and error?

Edit:
Never mind, I saw the DTR link in an earlier post now. Acrylic? I used to use them. Now, I want glass only, the lack of temperature shift to focus is total luxury.