hawke nature trek 80mm

• Night Vision & Thermal
• Accessories
• Recommended
• Night Vision
• Optical Sights
• Lab & Science
• Rangefinders
• Spotting Scopes, Telescopes & Tripods
• Optical Accessories
• Eye Protection
• Holographic, Prism, Reflex & Red Dots
• Mounts & Risers
• Sniper Scopes
• Thermal Imaging
• Vortex Optics
• Vector Optics
• Scope Mounting Tools
• Air Gun Compressors
• Ammo Storage
• Bags, Cases & Slings
• Batteries & Power Packs
• Bipods, Tripods & Shooting Rests
• Gun Cleaning
• Rifle Stocks
• Surveillance
• OPW Trade-In's (PX YOUR OPTICS NOW)
• Open Box Return
• Factory Refurbished
• SOG Returns
• Preowned Rifle Scopes
• Preowned Binoculars
• Preowned Night Vision & Thermal
• Preowned Mounts
• Preowned Accessories
• Preowned Miscellaneous Optics
• OPW Gift Cards
• Thermal Vision
• Rifle Scope Best Sellers
• Binocular Best Sellers
• Night Vision Best Sellers
• Thermal Best Sellers
• May Clearance
• Sytong Specials
• Ex-Display / Demo / OBR Specials
• Spring Specials
• Clearance Accessories
• Clearance Optics
• Clearance Mounts
• Clearance Night Vision & Thermal
• Night Vision Rifle Scopes
• Night Vision Add On's
• Night Vision Binoculars
• Night Vision Monoculars
• Night Vision Accessories
• Night Vision Battery Packs
• Infrared Illuminators & Lasers
• Thermal Add On's
• Thermal Binoculars
• Thermal Monoculars & Imagers
• Thermal Rifle Scopes
• Thermal Accessories
• Thermal Battery Packs
• Rifle Scopes
• Camera Systems
• Crossbow Scopes
• Pistol Scopes
• Red Dot Sights & Prism Sights
• Tactical Magnifiers
• *SPECIAL ORDER* Rifle Scopes
• Laser Rangefinding
• Harnesses & Packs
• Binocular Accessories
• *SPECIAL ORDER* Binoculars
• Microscopes
• Ballistic Solutions
• Digi-Scoping
• Spotting Scopes
• Spotting Scope Accessories
• Tripod Heads & Plates
• Anti Reflection Device (ARD)
• Bubble Levels
• Lens Cleaning
• Power Throw Levers
• Reticle Level Systems
• Schmidt & Bender Accessories
• Scope Jackets
• Tactical Turrets
• Two Piece Bases
• One Piece Bases
• Picatinny Rails
• Adapters & Risers
• Red Dot Bases
• One Piece Rings
• Two Piece Rings
• Cantilever Mounts
• Adjustable / MOA
• Special Receivers (Tikka, Sako, CZ, Ruger, ETC)
• Accessory Mounts
• Ring Screws
• Scope Mounting Kits
• Torque Wrenches
• Belts & Straps
• Bullet Holders
• Case / Mat Combos
• Gun Slings, Holsters & Swivels
• Hard Gun Cases
• Hydration Packs
• Miscellaneous Bags & Holders
• Range Bags & Holdalls
• Shooting Mats
• Silencer Covers
• Waist Bags & Pouches
• Bipod Accessories
• Shooting Rests
• Shooting Sticks (Mono,Bi,Tri,Quad)
• Tripod Adapters
• Tripod Heads
• Tripod Weapon Supports
• Bore Guides
• Brushes, Jags & Mops
• Cleaning Cloths & Patches
• Cleaning Hand Tools
• Cleaning Kits
• Cleaning Liquids
• Cleaning Rods
• Lighting Accessories
• Rifle Stock Accessories
• Chassis Systems
• Composite/Synthetic
• Trail Cameras
• Surveillance Accessories
• Badges & Patches
• Miscellaneous
• Fleeces & Jumpers
• Shirts & T-Shirts
• Travel Mugs/Cups
• Boresighters
• Bubble Levels & Levelling Kits
• Chronographs
• Gunsmithing
• Mounting Kits
• Screwdriver Kits
• Target Camera Systems
• Trigger Pull Gauges
• Wind Meters
• Binoculars / Spotting Scopes
• Night Vision Under £300
• Night Vision Under £600
• Night Vision Under £1000
• Night Vision Under £1500
• Rifle Scopes Under £200
• Rifle Scopes Under £400
• Rifle Scopes Under £600
• Rifle Scopes Under £1000
• Deer Stalking
• Driven Boar
• Extreme Long Range (over 1200yds) - FFP
• Extreme Long Range (over 1200yds) - SFP
• Field Target
• Hunter Field Target
• Long Range (up to 1200yds) - FFP
• Long Range (up to 1200yds) - SFP
• Night Vision Compatible
• Rimfire/Airgun Hunting
• Tactical - FFP
• Clearance Binoculars
• Clearance Range Finders
• Clearance Red Dots
• Clearance Rifle Scopes
• Clearance Spotting Scopes

Hawke Nature-Trek 20-60x80 Spotting Scope

• Fully multi-coated optics to produce sharp images
• Close focus - see detail from 18ft/5.5m
• BAK-4 porro prisms for intense colour and contrast
• Body rotation for viewing in virtually any position
• Stay-on soft scope cover for maximum protection
• Twist-up eye cup and pull out sunshade
• Digi-scope compatible for use with your camera

The Nature-Trek 20-60x80 Spotting Scope offers exceptional optical performance in a lightweight and waterproof modern design. A fully multi-coated optical system combined with bak-4 porro prisms produces extremely clear and sharp images. The Nature-Trek 20-60x80 Spotting Scopes 65mm and 80mm optical systems have been optimized for maximum performance whilst keeping the scope body short in length making them ideal for hiking and travel.

• Exit Pupil: 4 - 1mm / 0.2 - 0.1"
• Prism Type: BAK-4 Porro
• Focus: Single Digi-scope
• Compatible:YES
• Eye Cup:Fold Down
• Field of View: m @1000m / ft @1000yds36-20mm / 108 - 60ft
• Close Focus:3.5m / 11ft Eye Relief:20mm / 0.8"
• Length:398mm / 15.7"
• Weight:1310g / 46.2oz
• Exit Pupil: 4 - 1mm / 0.2 - 0.1″
• Focus: Focus Knob
• Digi-scope Compatible: YES
• Eye Cup: Twist-Up
• Hawke Worldwide Warranty
• Made in China

Hawke Worldwide Warranty  

• Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
• If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
• The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout.
• Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
• Please view the attached slides HERE for further information!

check-circle You submitted your review for moderation.

exclamation-circle

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

Need some clarifications?

• Thermal Scopes 397
• Thermal Sights 251
• Thermal Clip-Ons 75
• Thermal Monoculars 302
• Thermal Binoculars 96
• Thermal Cameras 65
• Thermal for Mobile 11
• Crossbow Scopes and Sights 12
• Daytime Binoculars 189
• Day Scopes 772
• Holographic Scopes 271
• Hunting Scopes 427
• Rangefinder 39
• Red Dot Sights 164
• Tactical Magnifiers 29
• Tactical Scopes 203

Popular Brands

Join the NVG Newsletter

Follow us on social media, policies & procedures, night vision university, night vision support.

Hawke Nature-Trek 20-60x80 Spotting Scope

By adding to cart, I understand, acknowledge, and agree to the Export Policy . I am a U.S. Person, and I do not intend to export this product.

EXPORT POLICY AND EXPORT RESTRICTIONS INFORMATION

The U.S. Department of State’s Directorate of Defense Trade Controls, the U.S. Department ofCommerce’s Bureau ofIndustry and Security, and the U.S. Department of the Treasury’s Office of Foreign Assets Control administer export control regulations that affect some aspects of our business. We request that you (the “Customer”) read and familiarize yourself with the following regarding certain applicable export regulations.

The sale, transfer, transportation, or shipment outside of the U.S. of any product prohibited or restricted for export without complying with U.S. export control laws and regulations, including proper export licensing, documentation or authorization, is strictly prohibited and may result in civil penalties and/or constitute a federal crime. Night Vision Guys LLC will not engage in any transaction that requires the illegal export of any products and will not assist directly or indirectly with the illegal export or re-export of any products. If you should have any questions or require additional information regarding export regulations please contact our knowledgeable and experienced staff or contact the:

U.S. Department of Commerce

U.S. Bureau of Industry and Security

Office of Exporter Services

PH (202) 482-4811

Website: http://www.bis.doc.gov

Department of State

Directorate of Defense Trade Controls

Response Team

PH (202) 663-1282

Website: http://www.pmddtc.state.gov

We thank you for your cooperation in helping us safeguard against illegal exportation of Night Vision Guys LLC products.

EXPORT REGULATIONS

Export of night vision equipment and optical sighting equipment (including user manuals) is controlled either by the U.S. Department of State, Directorate of Defense Trade Controls, in accordance with the International Traffic in Arms Regulations (ITAR), Title 22, and Code of Federal Regulations Part 120-130 or the U.S. Department of Commerce, Bureau of Industry and Security, in accordance with the Export Administration Regulations (EAR), Title 15, Code of Federal Regulations Part 730-774.

Some of this equipment may require a license for export or re-export from the United States. Any export of equipment by Night Vision Guys LLC to a purchaser outside of the United States will be made in strict compliance with U.S. export control laws.

It is the purchaser’s responsibility to request and obtain any required export licenses for the subsequent export or re-export of the subject items, and to ensure that the requirements of all applicable laws, regulations and administrative policies are met. In addition, subsequent transfers of any products sold by Night Vision Guys LLC to individuals or entities on the List of Debarred Parties, Denied Persons List, Specially Designated Nationals List, Entity List, or Nonproliferation Sanctions List (collectively “Restricted Parties Lists”), as well as sales or transfers to Embargoed Countries, are strictly prohibited. It is the purchaser’s responsibility to verify whether any subsequent transferee is on any such Restricted Parties Lists, websites for which are set forth below.

LISTS OF PROHIBITED INDIVIDUALS, ENTITIES AND COUNTRIES

Specially Designated Nationals List

Debarred Parties List

Nonproliferation Sanctions List

Embargoed Countries and Destinations (see EAR part 746)

OFAC Sanctions Programs

ITAR items and items marked for domestic sale only should only be used by party identified on the Night Vision Guys Sales Order/Invoice for use or resale in the U.S. only. Such items should not be exported, provided to foreign persons in the U.S. (including Foreign Embassies in the U.S.A.), or sold domestically for export by a third party (including U.S. Government agencies). If/when such items are resold, the original purchasing party must advise customers/end users of their duty to comply with U.S. export control regulations or face the possibility of severe criminal and civil fines including imprisonment if convicted. Furthermore if above mentioned items are resold or transferred in any way, the original purchaser must inform customers/end user(s) that if these items are lost, stolen or destroyed, they must report this fact to Night Vision Guys LLC and provide the date of the incident as well as the associated serial number of the item.

“U.S. Person” for this purposes is a U.S. citizen, lawful permanent resident as defined by 8 U.S.C.1101 (a) (20), protected individual as defined by 8 U.S.C. 1324b(a)(3)) and “US Company” as the company entity organized under the laws of the United States.

Diversion contrary to U.S. law is strictly prohibited.

Other Restrictions : Restrictions on the use of night vision with a weapon vary from state to state. You are strongly advised to learn these laws and adhere to them. Night Vision Guys LLC will not be held responsible for unlawful usage.

Discover Incredible Savings Without Compromising On Quality

AGM Rattler TC35-384 Compact Medium Range Thermal Imaging Clip-On 384x288 (50 Hz), 35 mm lens Package MKP

AGM TAIPAN TM15-256 Thermal Imaging Monocular MKP

Bering Optics Rubicon Pro Waterproof Reflex sight with a front control button MKP

Steiner Micro Reflex Sight MKP

STEINER DRS1X w/std mount, Tan MKP

Pulsar Thermion 2 LRF XP50 PRO Thermal Imaging Riflescopes MKP

AGM Varmint LRF TS35-640 Thermal Imaging Rifle Scope with built-in Laser Range Finder, 12um, 640x512 (50 Hz), 35mm lens MKP

ATN OTS LT 320, 6-12x Thermal Viewer MKP

ATN OTS LT 320, 2-4x Thermal Viewer MKP

GanVault AR Vault Digital/Biometric Rifle Safe MKP

NVG PVS-14 Gen 2+ PHOTONIS ECHO White Phosphor-64-74lp/mm (W/Tube Data Sheet)-Minimum FOM 1800 SNR26+ MKP

NVG PVS-14 Gen 3 Manual Gain-Elbit Green-68-76lp/mm (W/Tube Date Sheet) - Minimum FOM 1800, SNR 25.7 MKP

Cono Tech Polaris 335R Thermal Scope MKP

Pulsar Merger LRF XP50 Thermal Imaging Binoculars MKP

Pulsar Thermion Duo DXP50 Multispectral Thermal Riflescope MKP

Pulsar Thermion Duo DXP55 Multispectral Thermal Riflescopes MKP

The Nature-Trek spotting scope family offers exceptional optical performance in a lightweight and waterproof modern design.

A Fully Multi-Coated optical system combined with BAK-4 Porro prisms produce extremely clear and sharp images.

The 80mm optical systems has been optimised for maximum performance while keeping the scope body short in length making them ideal for hiking and travel. Featuring a rotating tripod band, retractable sunshade and stay-on cover for protection.

• Fully Multi-Coated Optics To Produce Sharp Images
• Close Focus - See Detail From 18ft/5.5m
• BAK-4 Porro Prisms For Intense Colour And Contrast
• Body Rotation For Viewing In Virtually Any Position
• Stay-On Soft Scope Cover For Maximum Protection
• Twist-Up Eye Cup And Pull Out Sunshade
• Digi-Scope Compatible For Use With Your Camera

Ask a question and our community will answer.

Loading, please wait...

Business Hours: 10:30 – 5:00 daily FREE SHIPPING ON SUB-TOTALS OVER $100* *APPLIES TO UPS GROUND ONLY. ORDERS UNDER $100 PAY ONLY $7.95 FLAT-RATE. SOME LARGE ITEMS, SUCH AS TELESCOPES, REQUIRE $24.95 FOR SHIPPING.

80MM HAWKE NATURE TREK SPOTTING SCOPE

An excellent value in an 80mm Spotting Scope. Fully multi-coated optics provide good clarity. The 80mm lens diameter is brighter in lower light than a smaller scope. Waterproof, and nice "stay-on" case included. Mounts on standard camera or video tripod that will support 3 pounds.

The magnification can increase to 60 times but know that the ability to get a clear image at that magnification depends on how clear a day it is; heat, moisture, dust in the air will also be magnified and the image will look less clear at higher magnification! Logical, right?

• 20-60x zoom eyepiece
• Includes stay-on case
• Weighs 2.9 lb.

Visit our other websites HC Gifts | Dorr Foto | HC Paper  

Hawke Nature Trek 20-60x80 Spotting Scope

Product Code: 55201

• Hawke Lifetime Warranty - Covered For Life.
• Fully Multi-Coated Optics
• 3.5m Close Focus Distnce
• BAK-4 Porro Prisms
• Nitrogen Purged - Water and Fog Proof
• Stay-on Soft Cover
• Twist Down Eye Cup & Pull Out Sunshade

Bank Holiday Delivery Info

Free standard delivery to UK Mainland on all orders over £50

DPD Next Working Day and Saturday delivery also available when ordered before 2pm Mon-Fri

Click here for full details

Have equipment to trade in?

Part-exchange against a new camera, or sell your gear and get paid by secure bank transfer

Get in touch for your free, no obligation quote.

Get a quote today

DPD Next Working Day and Saturday delivery also available when ordered before 2pm Mon-Fri

We want your old cameras, lenses and accessories.

Description

Hawke nature trek 20-60x80 spotting scope .

Housed in a waterproof and lightweight design, the Hawke Nature-Trek 20-60x80 Spotting Scope is a powerful instrument that ensures maximum performance. Perfect for hiking and travel, the Nature-Trek Spotting Scope is short in length to ensure it can be transported without hassle. With fully-coated optics and a variable magnification, you can enjoy a clear view at different distances even in low light conditions.  

Optical Design 

The Hawke Nature Trek Spotting Scope has an 80mm objective lens, increasing light transmission for a bright image even in challenging light conditions. To aid a crystal-clear field of view, the Nature Trek 20-60x80 features BAK-4 Porro Prisms to ensure enhanced colour and contrast, as well as, fully multi-coated optics that encourage a sharper and clearer image.  

Variable Magnification  

This Nature Trek model features a variable magnification of 20-60, allowing you to freely change the magnification from the lower range to the higher range for accurate viewing. With a close-focusing distance of 5.5m, you can enjoy incredible detail from a variety of angles and distances. A variable magnification gives you the control over the image you want to see.  

Durable and Ergonomic Design 

This Spotting Scope is prepared for challenging environments as it is nitrogen purged to assist the waterproof and fog proof design – benefit from consistent operation, worry free. A stay-on soft scope cover for ultimate protection, as well as twist-up eye cup and pull-out sunshade for strain-free, clear viewing. For easy use, the Nature-Trek 20-60x80 has body rotation so you can change your view to almost any position.  

Hawke Lifetime Warranty for Binoculars & Scopes - Learn more and register your product Here .

Hawke Nature Trek 20-60x80 Spotting Scope - Promotional Video:

Specification

Product reviews, added to basket.

• 01485 211223
• 10am - 5pm Everyday
• Live chat 24/7

Free delivery

on orders over £60

NEXT DAY DELIVERY

On in stock items

3 interest free payments

Order Online

safe and secure

Hawke Nature-Trek 20-60×80 Spotting Scope

£ 329.00

The Hawke Nature-Trek 20-60×80 Spotting Scope features an 80mm objective lens which provides extremely bright and sharp images along with the fully multi-coated lens.

• Description
• Reviews (0)

The Hawke Nature-Trek 20-60×80 Spotting Scope has fully multi-coated optics and BAK-4 porro prisms. These work together to produce sharp and bright images, as well as intense colour and contrast. The close focus of 3.5m allows you to get up close and personal with natures wonders.

The 80mm objective lens ensures maximum light transmission for extremely bright and sharp images.

The Hawke Nature-Trek 20-60×80 Spotting Scope also features body rotation which allows for viewing in virtually any position, as well as being digi-scope compatible. This all makes the Hawke Nature-Trek range extremely convenient and easy to use.

All scopes are supplied with lens covers, stay-on soft cases, carry straps and lens cloths. As well as this they are also covered by Hawke’s No-Fault Lifetime Warranty. If you require any assistance in choosing the right scope for you please don’t hesitate to get in touch. We are always happy to help so you get the right product for your needs.

Key Features:

• 20-60x zoom magnification and 80mm objective lens diameter
• Fully multi-coated lens
• FOV of 36 – 20m @ 1000m, 5.5m close focus and 20mm eye relief
• Length of 398mm and 1310g weight
• Nitrogen purged so the scope is waterproof and fog proof

To see the full Hawke Spotting Scope range click here

There are no reviews yet.

Your email address will not be published. Required fields are marked *

Your review  *

Name  *

Email  *

Save my name, email, and website in this browser for the next time I comment.

Related products

Kowa TSN 99A Prominar Spotting Scope

Viking Swallow ED 65mm Spotting Scope

Vortex Razor HD 85mm Spotting Scope

Zeiss Harpia 23-70×95 Spotting Scope

Connect with us.

Opened in December 2011 by Richard Campey , The One Stop Nature Shop offers customers the opportunity to try wildlife observation equipment they are familiar with but also learn about and try new technologies and products.

• Open 9:30am-4:30pm Every Day
• [email protected]
• Dalegate Market, Main Road, Burnham Deepdale, King's Lynn PE31 8FB, United Kingdom

Copyright © 2023 One Stop Science and Nature Ltd. All Rights Reserved.

Home   >  Binoculars & Spotting Scopes   >  Spotting Scopes

Hawke Nature-Trek 20 - 60 x 80 Spotting Scope In Green

Model:   55201 Brand:   Hawke

2 Year Warranty On All New Items (Excluding Batteries & Globes)

• Information
• Customer Reviews (0)
• Stock & Delivery
• Zygo Test Report
• Request A Callback

NATURE-TREK 20-60×80 SPOTTING SCOPE

Fully multi-coated optics to produce sharp images Close focus - see detail from 11.5ft/3.5m BAK-4 porro prisms for intense colour and contrast Body rotation for viewing in virtually any position Stay-on soft scope cover for maximum protection Fold down eye cup and pull out sunshade Digi-scope compatible for use with your camera

Power:20-60× Objective Diameter:80mm Lens Coating:Fully Multi-Coated Field of View: m @1000m / ft @1000yds36-20mm / 108 - 60ft Close Focus:3.5m / 11ft Eye Relief:20mm / 0.8″ Length:398mm / 15.7″ Weight:1310g / 46.2oz Nitrogen Purged - Waterproof and Fog Proof.

SPECIFICATION

Exit Pupil:4 - 1mm / 0.2 - 0.1″ Prism Type:BAK-4 Porro Focus:Focus Knob Digi-scope Compatible:YES Eye Cup:Fold-Down Warranty:Hawke Worldwide Warranty

SUPPLIED WITH

20-60x Zoom Eyepiece Stay-on Cover Lens Caps Lens Cloth

Be the first to Write a Review for this item!

Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or [email protected].

The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.

The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.

Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 1pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

Please note International customers will need to contact us for a shipping price prior to ordering via the website. We don't ship all items internationally. It is at our discretion what we ship outside of the UK. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.

If you have any questions regarding stock levels or delivery, please get in touch.

Zygo Interferometer Testing For ED Refractor Telescopes!

We are extremely pleased to announce our Zygo Interferometer is now installed and ready for use! Our experienced staff can test refractor lenses up to 120mm aperture and provide a comprehensive 2 page report showing the optical quality and Strehl ratio, plus much more information. We are using the very latest Zygo MX software to provide a more detailed report compared to other standard reports.

The interferometer is essentially a measuring instrument. Within the interferometer is a calibrated laser that is pointed through the optical test surface, then onto a high quality reference sphere, then back through the test subject then to an internal camera which gives us the measurement on the screen. From this, we can adjust the position of the test optic and the reference sphere to obtain a perfectly calibrated system. The more central the laser to the test optic and then on return, the better and more accurate reading and measurement we can take. This takes a lot of adjustment to get the best results from the optical surface. Once the measurement has been taken, we are provided with a series of results that show the optical quality of the surface plus other information. Continue reading for an explanation of the individual values and you can also see a test report that was done on one of our RVO Horizon 60 OTAs. 

We are offering certain telescopes with a Zygo test at an extra cost. Mainly ED doublets and triplets. All available telescopes with a Zygo test report are listed here . Just select Zygo Test Report from the drop down box at the top of the listing and we will test the optics in house and provide a full 2 page report with your scope. This will show you the optical quality of your telescope optics. We can also offer this service on your refractor telescope. Please get in touch for more details about this. 

At Rother Valley Optics, one thing we pride ourselves on is customer service and quality of our equipment. When we test your telescope, we will ensure that it is of the highest quality otherwise, we will reject the scope under our strict quality control and test another model for your peace of mind. One of the main values to look at when testing a refractor is the Strehl ratio. The higher this number, the higher quality lens you have. At Rother Valley Optics, we will guarantee the highest possible Strehl ratio for your telescope.  We will aim to provide 0.95 Strehl or higher on Takahashi, RVO Horizon, William Optics and many more! Generally, the higher the Strehl ratio, the lower the Astigmatism and Coma meaning a better image quality from your instrument. 

Other measurements such as the PV and RMS are important too. With these measurements, the lower the number the better as it shows less curvature on the lens. The flatter an optical lens, the better it will perform. The PV rating (Peak To Valley) is a measurement from the highest point (Peak) to the lowest point (Valley). From this we get the RMS (Root, Mean, Square). This is a similar figure to the PV and measured exactly the same way. The RMS is basically an average height difference from the PV so again, the lower the better. As you can see form the example below, we measured an RMS of just 0.027 wave which is a very good value.

We also measure the Power with our systems which is essentially the error from the reference sphere to the test optic. The reference sphere we use on our system is a very high quality sphere so the closer to zero the Power, the less error between the 2 elements thus ensuring a higher quality optical surface. 

You will also see some more values such as Astigmatism and Coma. Again, these are measured by the interferometer when we take measurements of the optical surface after adjustment. These are values which ideally would be at 0 but as our test optics are all curved lenses, there will always be astigmatism and coma present. The lower the number, the less of these aberations you will effectively see but with most refractors, you can buy field flatteners which will compensate for the coma anyway. The astigmatisms value is explaining the error between the symmetrical curvature of the lens. Basically, no lens will be perfectly symmetrical, the lower the astigmatism, the more symmetrical the lens surface is. 

Once the Zygo test report has been completed, the optical alignment is thoroughly tested and tuned to ensure they are spot on before they leave us. 

All available telescopes are on the website at the link below and ones we've tested already that are available straight away are also listed.

https://www.rothervalleyoptics.co.uk/zygo-tested-refractors.html

Here is an example of the test what we provide. This was a test on one of our Horizon 60 ED OTA's.

For any questions about this amazing new service, please either call 01909774369 or email [email protected].

Are you interested in this product but would like to speak to someone with some more information? Simply fill in the form below and we will get back to you as soon as we can!

Customers who bought this item also bought:

UNPARALLELED OPTICAL PERFORMANCE

The ultimate optics contained in only our most advanced riflescopes. The Best.

£600 < £900

IMMERSIVE WIDE ANGLE OPTICS

High performance optics comprising ultra-wide angle and long eye relief. The professionals choice.

£400 < £700

REDEFINING VALUE OPTICS

Our premium optics for a wide range of scopes transversing many disciplines. Dependable, Accurate, Affordable.

RIFLESCOPES

• FRONTIER 34 FFP
• FRONTIER 30 FFP
• FRONTIER 30 SF
• FRONTIER 30 FD
• FRONTIER 30
• FRONTIER SF
• SIDEWINDER 30 FFP
• SIDEWINDER 30 SF
• ENDURANCE 30 WA SF
• ENDURANCE 30 WA
• VANTAGE 30 WA FD IR
• VANTAGE 30 WA FFP IR
• VANTAGE 30 WA SF IR
• VANTAGE 30 WA IR

AIRGUN SCOPES

• AIRMAX 30 WA TOUCH
• AIRMAX 30 WA SF COMPACT
• AIRMAX 30 WA FFP
• AIRMAX 30 WA SF
• Crossbow Scopes

RED DOT SIGHTS

• Prism Sights

Reflex Sights

Laser range finders.

• LRF 400 & 800
• FRONTIER LRF

RING MOUNTS

Accessories.

• FLIP-UP COVERS
• Neoprene Scope Covers
• SIDE WHEELS
• LASERS & LEDS
• BIPODS & RESTS
• Replacements

Merchandise

• CAPS, HATS & BEANIES
• Reticle Information

The ultimate APO, ED and HD optics contained in only our most advanced binoculars. The Best.

IMMERSIVE ED OPTICS

High performance optical system with ED glass. The professionals choice.

Our premium optics in a wide range of binoculars and scopes. Dependable, Accurate, Affordable.

• FRONTIER APO
• FRONTIER ED X
• FRONTIER HD X
• Endurance ED

SPOTTING SCOPES

Nature-trek.

• DIGI-SCOPE Adaptors
• Binocular Harness Packs
• New Products

A lifestyle hub for the outdoor enthusiast. Featuring tips, techniques & advice from passionate sporting men and women.

• Shows & Events
• Product Reviews
• Product Instructions

Connect with Us

• Instagram (Nature)
• Find your Local Dealer
• Global Distributors
• Returns & Service
• Product Registration
• Sign In
• New Account
• {*REMOVETHIS*%block_21}

Nature-Trek System H2

Supreme accuracy for rifle shooting, driven and hunting applications..

The Nature-Trek family utilises our System H2 optics produced in a shock resistant polycarbonate body, providing a robust yet lightweight package. The high grip rubber armour ensures a secure hold in all weather conditions.

Optics are crisp and clear with notable natural colour reproduction. The precise focusing wheel allows focussing down to 2m.

Nature-Trek offers a complete range of binoculars from the very portable 25mm models up to the oversized 50mm models, ideally suited to low light conditions where a large exit pupil diameter is required.

Nature-Trek Compact