Due to its outstanding refractive index, the BaK4 glass prism found in all PENTAX Sport Optics is highly acclaimed for its perfectly round exit pupil and clear, unvignetted image.

Was quickly sorted, though, and with minimal practice raising the bins with eyes on target I was acquiring with little effort. Im just looking for any decent, take the tripod, set it and enjoy land viewing on sunny days, you know . The extra mag of 20x over 15x really is nice for positive identification of type and corporate livery. The optical tubes are nitrogen-filled and O-ring sealed for fogproof performance and to make them submersible to as much as 3.

But amateur astronomers use 20x for stargazing, and though they are willing to put up with a narrower FOV than I would for terrestrial use (i. You don't want roof prism, unless that is all you have, due to the light loss from the extra reflections in the prisms. To add to the durability of the Z- and S-series Water Proof binoculars, Pentax has added a protective, Nano technology coating that helps deflect water, oil, dust and dirt.

This results in a unique visual experience, such as you have never seen before - totally free of unavoidable hand tremor.Secure, automatic locking of the moving parts when not in use and the solid, rubber armour of the metal casing serve to protect the internal optics and mechanics. The only irritation I've had with them are the poor fitting lens caps and the joke of a carrying case! You can lay on the ground or lawn or use a lawn chair and prop your elbows on your chest and look all night because 11x is not high enough power to mess up the view from wiggling or fatigue.

At the optical level, the Zeiss 20x60 S binoculars have special glasses on the lenses that offer a sharp and bright image even with the power of 20 x. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others.The binocular support a generous 21mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images and affect night-adjusted vision. Pentax waterproof products are fully sealed and purged with laboratory grade nitrogen to provide a fog proof view in the harshest weather conditions. Duologi is a trading name of Specialist Lending Ltd, which is authorised and regulated by the Financial Conduct Authority (register number 774712 ). Late payment and early repayment penalties apply; full details of these will be provided in the loan agreement pack.

The Pentax SP 20x60's are a pair of high-quality, waterproof, nitrogen-filled binoculars suited to long-range or astronomy observations. Due to the low humidity factor, nitrogen prevents condensation from forming on the internal lenses of optical instruments during phases of rapid temperature change. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC, authorised and regulated by the Financial Conduct Authority. The real field of view is limited by the clear aperture of the field lens or front lens of the eyepiece.

quarter was just extraordinary through the 20x60s – by far the best view I’ve ever had with hand-held binoculars. These may have significantly wider field than the Pentax (~3+ degrees), but also much shorter eye relief. Enjoy watching birds or other animals as if you were right next to them thanks to their powerful magnification and very high image clarity!