I have heard great things about the vipers. If you get on ebay, you can occasionally find Pentax DCF SP 8 x 43 or 8 x 32, they are MUCH better than the Vipers!I have owned both the 8 x 43 and the 8 x 32, they retail for around $700.00 but you can sometimes find them for $350.00 and believe me, they are worth every penny!