Prism vs Mirror star diagonals

[Kyle Edwards]

What are the pros/cons of prism star diagonals compared to mirror diagonals? Do they introduce false color?

The reason I ask is that I have a small 70mm refractor that I bought to take star parties and such, and it came with a cheap mirror diagonal, and I was wondering if one of Orion's inexpensive prism diagonals (http://www.telescope.com/shopping/product/detailmain.jsp?itemID=267&itemType=PRODUCT&iMainCat=6&iSubCat=31&iProductID=267) would be an improvement.

Thanks for any help.

[Dave Mitsky]

IMO, an inexpensive prism diagonal would not be an improvement.

http://en.wikipedia.org/wiki/Star_diagonal

http://www.bpccs.com/lcas/Articles/mostscop.htm

Dave Mitsky

[Kyle Edwards]

IMO, an inexpensive prism diagonal would not be an improvement.

http://en.wikipedia.org/wiki/Star_diagonal

http://www.bpccs.com/lcas/Articles/mostscop.htm

Dave Mitsky

Thanks for the help. I should probably buy a more expensive mirror one.