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APM Telescopes HD 28x110

APM Telescopes HD 28x110
Manufacturer:
APM Telescopes
web site
Distribution / Sales:
BRAK
web site
 

Specifications

Lens diameter [mm] 110
Magnification [x] 28
Angular field of view [deg] 2.32
Linear field of view [m/m] 41/1000
Exit pupil [mm] 3.93
Eye relief [mm] 0
Min. focusing dist. [m] 15
Twilight factor 55.5
Brightness 15.43
Prisms BaK-4/Porro
Dimensions [mm]
Weight [g] 0
Waterproof Yes
Nitogen filling No
Argon filling No
Image stabilization No
Tripod exit Yes
Focusing individual
Warranty [years] 1
Accesories
Price 0
Additional information

Average rating (1 owners reviews).

Build quality 4.00
Optical quality 5.00
Accesories and usage 4.00
Value for money 5.00
Overall 4.50
Build quality
Optical quality
Accesories and usage
Value for money
Overall
User: Andresin150
IP 190.24.x.x
Date: 2012-02-21 16:47:12
Owner since: 3 years
Price: $650
User profile: Semipro
 

Cons: Chinese, not all are equal, I have 3 of those, all are different (a bit more CA in one tube, a bit of astigmatism in other, etc..), but all in all, those are better than any 25x100 by a wide margin. In that price range, a good mount can surpass the cost of the binoculars.

Pros: Superior optical quality in the price range. I consider them to be a better value than the more expensive 100mm Miyauchi Chinese Clones. I prefer the 28x over the 20x; its exit pupil diameter is better for average skies and its AFOV is very good (64º). Medium to easy to conditionally align if knock out of collimation

Summary: Even that those are not perfect, I'll recommend them over any other medium priced giant binocular in the market

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