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VIXEN ASTRONOMY PRODUCTS

 

GS 815 Fieldscopes
GS 815 GA, GS 815 GA ED

Discontinued December 2010. Full range of accessories available.

Introduced in response to growing demand for high quality lightweight waterproof telescopes the GS 815 series set the standard for people wanting to take-out and walk-about with their equipment whether pursuing birdwatching or general wildlife observation. Available in straight-through or 45°, with standard optical glass or high performance ED objective lenses, the models are designed and manufactured to meet the three main requirements demanded by today's active fieldscope user: high-end optical performance, usability and reliability.

'High end' optical performance and value
The GS 815 uses a 81.5mm dia objective lens without any noticeable gain in size or weight over a standard 80mm. With a 4% increase in light entering the telescope, more light is emitted from the eyepiece and onto the eye thus rendering a brighter image at all magnification settings compared with 80mm models. Added to this the Japanese designed and manufactured components coupled to HDF T or SDL eyepieces produce images with minimal edge distortion and accurate colour reproduction.

Usability
Ease of use in the field is critical to customer satisfaction and the GS is designed to provide class winning optical performance seamlessly in even pretty harsh environmental conditions. Protected by 'full body' natural rubber armour with a textured finish to the top half of the main body prism housing, the centrally positioned focusing wheel allows easy access for both right and left handed users and is also rubber covered to deliver a positive feel with or without gloves. The focusing system is designed to allow adjustment from infinity to 50 metres in just a 270° turn. Housed within the same mechanism for convenience is a 9:1 ratio accurate focus adjustment. To avoid problems of reflected light on the objective lens in bright sunlight the scopes are fitted with a 40mm retractable lens hood with integrated objective lens cover.

As telescopes need to be used with a solid tripod for image stability, any weight saving is crucial. Constructed to be as light as possible, the standard GS 815 weighs just 1360g w/o eyepiece. When fitted with an eyepiece and mounted on a tripod, the scope is well balanced and does not 'drop forward' a common problem with many larger 80mm telescopes. The instruments are fitted with a -/+ 90° rotating die-cast alloy tripod sleeve with 45° incremental 'stops'. This feature enables the scope to rotate around its’ central axis for accurate positioning when mounted to a bipod or on a clamp in a Hide.

Having access to full a range of different magnification eyepieces is also important. The GS series are fully compatible with Opticron SDL, HDF & HR2 eyepieces including the recommended 40862G HDF T 20-60x and 40809G HDF T 32xWW.

Reliability
Extensively tested for continuous trouble free use in varying temperatures, the models are fully nitrogen gas filled waterproof and come with the assurance of a 30 year guarantee.

Specifications

Specifications 815 815/45 815 ED 815 ED/45
Product Code
OG dia (mm)
Min Focus (m)
Length (mm)
Weight (g)
Price £ inc. VAT
40965
81.5
5.8
362
1280
369.00*
40966
81.5
5.8
362
1280
369.00*
40967
81.5
5.8
362
1349
549.00*
40968
81.5
5.8
362
1353
549.00*

 

 

 

 

 

*SRP £ Dec 2010

Eyepieces
A wide range of eyepieces are available for use with GS Fieldscopes. Choosing the best eyepiece is often confusing but making the right choice will depend on price and application. It is important to remember that the eyepiece is an integral part of the whole set-up and choosing a lower quality lens will make a difference to the overall image quality derived from the instrument.

SDL v2 Eyepiece CLICK FOR IMAGE
5-group 8-element ‘super’ zoom, the SDLv2 eyepiece maximises the performance gains inherent in Opticron ED objective lens fieldscopes at higher powers while maintaining superior cross-field definition coupled with exceptional viewing comfort. Model features twist-type retractable eyecup. Supplied in soft case. 10 year guarantee.

Eyepiece Code 40936G
Magnification
Field/1000m
Price £ inc. VAT
20-60x
33/20
289.00

 



 


HDF Eyepieces CLICK FOR IMAGES
The preferred choice for image quality, HDF eyepieces are long eyerelief giving full field of view with or without glasses and have large diameter eye lenses for viewing comfort. Fixed magnification eyepieces are wide-angle and offer a unique visual experience for the discerning user looking for maximum clarity and field of view. Models marked (*) feature alloy twist type retractable eyecup to enable individual eye to eyepiece distance adjustment. 10 year guarantee.

Eyepiece Code 40810G* 40809G* 40858G* 40860G 40861G 40862G*
Magnification
Field/1000m
Price £ inc. VAT
23xWW
43
139.00
32xWW
36
159.00
44xWW
26
179.00
80xWA
16
99.00
100x
8
99.00
20-60x
35/17
199.00

 

 

 

 


HR Eyepieces CLICK FOR IMAGES
Good choice as either supplementary eyepiece in combination with HDF or single eyepiece for the more value conscious requiring long eyerelief. HR 40933 zoom eyepiece is an excellent choice for 665 models giving 18-54x. Models marked (*) feature a twist-type retractable eyecup. 5 year guarantee.

Eyepiece Code 40930G 40931G 40933G*(1)
Magnification
Field/1000m
Price £ inc. VAT
27xWA
39
57.00
34xWA
33
57.00
23-69x
30/15
149.00

 

 

 


(1) Requires 40934 adapter to connect to telescope body

 

Telephotography

Wildlife montage

Telephotography, (taking high magnification photographs) is now easier then ever to enjoy using Opticron telescopes in conjunction with either D-SLR / SLR cameras, digital compact cameras or camcorders. CLICK HERE for more information on telephotography with GS scopes.

Accessories
CLICK HERE for information on Waterproof cases
CLICK HERE for information on Storage cases and Eyepiece cases
CLICK HERE for information on Tripods and Mounts
CLICK HERE for information on the 2.5x Universal Tele-adapter for SDL, HDF and HR eyepieces