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Swift Optics 820 ED Audubon 8.5x44

Swift Optics 820 ED Audubon 8.5x44Swift Optics 820 ED Audubon 8.5x44Swift Optics 820 ED Audubon 8.5x44Swift Optics 820 ED Audubon 8.5x44
Manufacturer:
Swift Optics
web site
Distribution / Sales:
Migomex
web site
e-mail
ul. Fabryczna 2
43-100 Tychy
 

Specifications

Lens diameter [mm] 44
Magnification [x] 8.5
Angular field of view [deg] 8.2
Linear field of view [m/m] 144/1000
Exit pupil [mm] 5.18
Eye relief [mm] 17
Min. focusing dist. [m] 3.3
Twilight factor 19.34
Brightness 26.8
Prisms BaK-4/Porro
Dimensions [mm] 138x188
Weight [g] 730
Waterproof Yes
Nitogen filling Yes
Argon filling No
Image stabilization No
Tripod exit No
Focusing central
Warranty [years] 25
Accesories
Price 1719
Additional information

Average rating (1 owners reviews).

Build quality 3.00
Optical quality 5.00
Accesories and usage 3.00
Value for money 5.00
Overall 4.00
Build quality
Optical quality
Accesories and usage
Value for money
Overall
User: Moynihan
IP 96.40.x.x
Date: 2011-11-24 00:03:40
Owner since: 8 years
Price:
User profile: Amateur
 

Cons: Occular bridge has some flex, not as as good as the pre-armored models.

Pros: Resolution, contrast and color error correction. Apochromatic.

Summary: Optically, the equal of most "alphas". Among porros, not quite the equal of the Nikon 8x32 SE, but what is? The armor is probably a good idea, but the fit and feel is for me not as nice as the pre-armored versions of this line.

Build quality 0 1 2 3 4 5
Optical quality 0 1 2 3 4 5
Accesories and usage 0 1 2 3 4 5
Value for money 0 1 2 3 4 5