Best Review Pentax 9x28 DCF LV Roof Prism BinocularWith so many available these days, it is good to have a name you can recognise. The Pentax 9x28 DCF LV Roof Prism Binocular is certainly that and will be a excellent acquisition. For this great price, the Pentax 9x28 DCF LV Roof Prism Binocular is highly recommended and is a regular choice for lots of people.
Product Description
Binocular Overview
The PENTAX DCF LV is compact and overloaded with high-performance features to deliver outstanding viewing enjoyment. The sleek, fully rubberised and waterproof body includes a large focus wheel and twist-up eyecups for comfortable handling. The DCF LV is your ideal compact companion where optical performance is desired, with an impressively sharp and high-contrast image and excellent resolution.
Waterproof Housing (JIS Class 6), Magnesium Alloy Body
The PENTAX DCF LV is fully waterproof and has maximum protection against rain, dust, moisture, or internal fogging due to extreme temperature fluctuations. The binoculars are double O-ring sealed as well as nitrogen-purged so that temporary (i.e. accidental) immersion into 1 metre of water will have no negative effects.
Phase Correcting Coating
A prism is a complex optical element necessary to correct the image the right way up and reduce overall length of the binocular. In a prism, light travels through complicated angles, making the quality of the prism glass used of significant importance. PENTAX uses exclusively high-index BaK4 prisms, made of very pure Barium glass. In roof prism binoculars, light rays are mirrored several times which can result in reduced light transmission. By adding an additional Phase Correcting coating, the light rays frequencies are corrected to their original values.
