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Zeiss Diatal Z 8 x 56 T* Rifle Scope, Number 1 reticle, Mint Condition Guns International #: 101804545 Seller's Inventory #: 21-024 Category: Optics - Austrian & German - Optics - Hunting Seller's Information When emailing or calling sellers direct, please mention that you saw their listing on GunsInternational.com Seller: rcrwin70 Member Since: 9/26/07 First Name: Roger State: Hawaii Country: United States Platinum Seller Number of Active Listings: 0 Seller: Private Seller Return Policy: 3 day inspection and return policy on used guns. 3 days Payment Types Accepted: cashiers check or money order or pay pal plus 3% Description: SOLD **Zeiss Diatal Z 8 x 56 T* rifle scope, Mint Condition Magnification 8x Effective objective lens diameter 56 mm; Exit pupil 7 mm; Twilight factor 21.2; Field of view / 100yds 15.6 ft; Eye relief 80 mm; Diopter adjustment range - 4 / + 2 dpt; Square adjustment range / 100 yds 4.4 ft; Adjustment per click / 100 yds 0.36 inch; Parallax free 100 m / 110 yds. This important term describes the actual width of your scope's sight picture at a specific distance. For instance, the Zeiss Diatal Z 8x56 T gives you a sight picture that is 15 feet wide at a range of 100 yards. Field-of-view is a function of magnification and the focal lengths of the objective and eyepiece lenses. But remember this: The higher the magnification, the narrower the field-of-view. Twilight Performance Using the following formulas gives a basic evaluation of low light performance; however, one must keep in mind that they are mathematical formulas and do not take into effect some of the most critical features in optics: glass quality, number of lenses, precision of manufacturing and coatings. Stray Light Stray light causes poor image quality.  When light entering the scope reflects off of air-to-glass surfaces, the reflected light eventually exits in the scope in the form of stray light. This unfocused light typically diminishes the image quality of the sight picture. To limit the detrimental effects of stray light, Zeiss employs the proprietary lens coatings known as T* Additionally, all interior surfaces are anodized in a matte black finish to prevent reflection of the metal. Also, Zeiss scopes do not contain any lubricants, such as oil, that may leak inside and reflect light. Theresult of these manufacturing techniques create an image that is crisp and true to color. Coatings As light strikes an air-to-glass surface, a small percentage of light is reflected away to become stray light. This effect is limited when these glass surfaces are treated with a microscopic layer of refractive material, such as magnesium fluoride.  To achieve multicoating, several such refractive layers are applied. When properly applied, coatings dramatically enhance light transmission properties by delivering more of the available light to the shooter's eye. Zeiss' two proprietary coatings are called T* and MC anti-reflective coatings. Waterproofing This describes a scope's ability to remain completely dry on the inside when exposed to moisture or total submersion in water. Zeiss scopes aresealed with O-ring and are filled with 100% arid nitrogen, which also resists all forms of moisture. Zeiss scopes are tested in accordance with German DIN 58 390 80 and ISO 9022, which guarantees that the product will not fog or leak in any way. Specification This is a rail scope set up for claw mounting, with its front claw mounted on a 62mm ring fitted to its front objective bell. Reticle is Zeiss Number 1 with three emboldened legs. Diameter objective tube 62 mm; eyepiece diameter 41mm and an adjustable rear claw mounted on its tube rail. Length 352 mm / 13.9 inch; Weight without rail 495 g / 17.5 oz; Matte black, multi-coated lens, water proof, fog proof and shock proof. No wear showing anywhere (no wear on turrent caps, objective lens, or eye piece). Although made in West Germany, this scope looks absolutely NEW with crystal clear optics. Includes correct Butler Creek Lens covers. Price: $799.00 Free shipping. Seller is the author of The Rifleman’s Rifle (pre-64 Winchester Model 70s) and feedback can be checked on eBay under rcrwin70roger. Call Roger, 808-989-1863. 3-day return privilege, no questions asked. Zeiss Classic Diatal Rifle Scope Features Proven technology successfully improved Optimised image quality due to newly designed optics Over 90% transmission due to Zeiss T* multi-coating on all interior glass-air surfaces Increased vision in the twilight due to increased transparency in the blue spectral range Considerably enlarged fields of view Extremely resilient aluminium casing Perfect sealing, no penetration of dust or moisture, nitrogen filled No exchange with the ambient atmosphere, environmentally tested to ISO 9022-80 Matte anodised surface protects against scratches Absolutely recoil-proof, tested to 1500 G/1 msec in fatigue test, the equivalent of the stress caused by the most powerful hunting calibre All models also with fast reticle adjustment feature Easy precise sighting-in using zeroed reticle adjustment and accurate wear-resistant click mechanism   SOLD