Description
-finished aluminum Birder comes with a quickly-removed heavy black vinyl protective dust cap. Similar caps are provided for the finderscope’s objective lens and eyepiece. A slide-on metal lens shade improves both visual and photographic contrast. Other standard equipment includes a camera coupling set that lets you use the Birder as a razor-sharp 1400mm (28x) f/16 telephoto lens by adding an optional Questar brand P-thread T-ring to fit your particular camera body.
An optional roof prism image erector, #6351, is available to allow straight-through viewing (from inside a car being used as a mobile blind, for example, using an optional car window mount). There is a loss of field when the image erector is used (from 58′ down to 47′ with the 40x eyepiece), the lever that changes from finder to a high power view is disabled, and you can only change powers by changing eyepieces, as the Barlow and finder optics are no longer in the optical path.
A foam-fitted waterproof hard case is standard equipment.
Ten-year Questar warranty (two-year warranty on the focuser, five years on the broadband coatings).
As the review in Audubon concluded simply, “Questar is superb.” If you want the world’s very best spotting scope, a Questar is it. Period. Case closed.
Tech Details:
| Aperture | 3.5″ |
|---|---|
| Armored | No |
| Exit Pupil | 2.2mm @ 40x |
| Eye Relief | 15mm @ 40x |
| Field of view 1000 yards | 58′ @ 40x |
| Length | 11″ |
| Magnification | 40 & 60x |
| Near Focus | 20′ |
| Photographic Focal Length | 1400mm |
| Photographic Focal Ratio | f/16 |
| Twilight Factor | 59.7 @ 40x |
| Warranty | 10 years |
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