Since its inception in 1998, Pentax's DCF WP Series of waterproof roof-prism binoculars, the first mid-priced roof-prism models to have phase-corrected prisms-has been a perennial favorite with hunters. And judging by our test sample, this new 10x50 DCF WP model will be just as well accepted. As for optical quality, it got ratings of 100 for eye relief, resolution and low-light performance, where it outlasted the super-bright Zeiss Victory 8x56 B by two minutes. Though outperforming the Zeiss glass was, no doubt, due to the Pentax 10x50's higher magnification, the feat was no less impressive. The most substantive criticism by testers was that the pop-up eyecups pushed down too easily.