Product Details
Smaller, lighter and sharper, the new HR ED fieldscopes offer a host of improvements over preceding models and have been redesigned without compromise in order to deliver truly exceptional optical performance combined with sublime handling and complete reliability.
Aimed squarely at the serious fieldscope user, the models are built to withstand extremes in temperature, to operate unaffected by rain, cold or humidity and as such can be used anywhere from equatorial rainforests to the poles.
The choice of body types, viewing eyepieces and dedicated accessories for observation and photography are unparalleled and combine to create the most versatile and complete range of fieldscopes we have ever produced.
The reconfigured optical systems deliver the highest resolution of any Opticron telescope and are matched directly to the SDL zoom eyepiece for constant focus across the magnification range; 18-54x (66)/24-72x (80). The models feature a high definition 5 element apochromat objective lens system with 2 separate ED elements, BK 7 prisms and unique Opticron N-type multi-coating. This combination maximises resolution and colour contrast especially at higher magnifications under a range of different light conditions.
Mechanically the HR ED feature a new lightweight magnesium body complete with large footprint tripod adapter with +/- 90 degree rotation. Fully nitrogen gas filled waterproof and hermetically sealed against penetration from dust and moisture, the models are protected with a textured and highly durable natural rubber armouring.
Other features include a centrally positioned rubber armoured focusing wheel for optimum accessibility plus a new retractable rubber covered lens hood with integrated rubber objective lens cap. HR ED fieldscopes are supplied with a comprehensive 30 year guarantee.
The advantages of ED
By using ED - extra low dispersion glass elements in the primary objective system, these fieldscopes provide a higher degree of colour correction when compared to conventional glass objectives. More apparent at higher magnifications and under certain light conditions (e.g. when looking over water on a bright warm day) the image appears sharper and colours remain truer to life across the magnification range. The ability to bring into clear and sharp focus indistinct objects such as coloured identification rings or shades of plumage in poor light over long distances are the hallmarks of an HR ED fieldscope.
This extra optical clarity combined with all the features and exceptional build quality make them the definitive choice for the professional ornithologist. In addition to improved viewing capability at higher magnifications, the benefits of using an HR ED fieldscope for telephotography with either compact digital or SLR cameras cannot be overstated. The 41110 Telephoto HDF conversion for SLR (1000mm - HR66 / 1350mm - HR80) is designed to meet the demands of the amateur wildlife photographer and when used in conjunction with an HR ED fieldscope ensures the very best definition and colour reproduction.
Specifications 66 ED / 45
Code 41003
OG dia [mm] 66
Min Focus [m] 5
Length [mm] 320
Weight [g] 1278
EYEPIECES
A wide range of eyepieces are available for use with HR ED fieldscopes. Choosing the best eyepiece is sometimes confusing but it is important to remember that the eyepiece is an integral part of the whole set-up and opting for a lower quality lens will make a difference to the overall image quality derived from the fieldscope. Recommended eyepieces are one or a combination of the following; SDL 40935, HDF T 40810, 40809, 40858, 40862.
SDL EYEPIECE CLICK FOR IMAGE
An F24 - F8, 5-group 8-element 'super' zoom, the 40935 SDL has been designed to maximise the performance gains inherent in Opticron ED objective lens fieldscopes at higher magnifications. Offering an optimum ratio between field of view and resolution, the main viewing characteristics of the SDL eyepiece are superior cross-field definition at all magnifications coupled with exceptional viewing comfort. Mechanically the eyepiece is waterproof, uses the M41.5 collar thread attachment, features a 90° rotation between high and low magnification settings plus a rotating eyecup that can be positioned to match individual needs. Supplied in soft padded case.
Eyepiece Code 40935
Magnification [66] 18-54x
Magnification [80]
24-72x
Field/1000m [66] 36/20
Field/1000m [80] 29/16
Price £ inc.VAT 229
HDF EYEPIECES CLICK FOR IMAGES
The preferred choice for quality and viewing comfort, HDF eyepieces have large dia.
eyelenses and provide 'walk-in' field of vision. All eyepieces feature long eyerelief for full
field of view with or without spectacles and fixed magnification models are wide angle.
Eyepiece Code 40810* 40809* 40858* 40859 40860 40861 40862*
Magnification [66] 20xWW 28xWW 38xWW 44xW 70xW 88x 18-54x
Magnification [80]
27xWW 38xWW 52xWW 60xW 95xW 120x 24-72x
Field/1000m [66] 52 45 31 26 17.5 13 30/17
Field/1000m [80] 39 33.3 33 20 13 7 29/13
Price £ inc.VAT 129 149 169 97 97 97 179
*twist type eyecup
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.(2)
HR eyepiece 40812 can be used as both a viewing lens as well as being an option in
providing the eyepiece part of the 41109 Photoadapter+eyepiece combination option for
SLR Photography.
