Nikon Aculon A211 Manual de instrucciones - Página 8
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8-18x42/10-22x50
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8
Specifications
- -
Type
Porro prism central focusing type
ACULON A211
Model
I
7xso
··r
I
I
8-18x42
7x35
8x42
10x42
10x50
I
12x50
16x50
1 0-22x50
I
Magnification (x)
7
8
10
7
10
I
12
16
8-18
10-22
Effective diameter of objective
35
42
42
50
50
I
50
50
42
50
lens (mm)
t
- -
Angular field of view (real)
n
9.3
8.0
6.0
6.4
6.5
5.2
4.2
4.6**
3.8***
Angular field of view
59.3
58.4
55.3
42.7
59.2
57.2
60.8
35.6**
36.7***
(apparent) (
0
)*
Field of view 1,000m (m/ft.)
163/488 140/420
105/314
112/335
114/341
91/272
73/220
80/241 ** 66/199***
Exit pupil (mm)
5.0
5.3
4.2
7.1
5.0
4.2
3.1
5.3**
5.0***
Brightness
25.0
28.1
17.6
50.4
25.0
I
17.6
9.6
28.1 **
25.0***
- -
- -
Eye relief (mm)
11.8
12.0
11.6
17.6
11.8
11.5
12.6
1 0.3**
8.6***
Close focusing distance,
5.0/16.4
5.0/16.4
5.0/16.4
8.0/26.2
7.0/23.0
8.0/26.2
9.0/29.5
13.0/42.7 15.0/49.2
approx. (m/ft.)
Interpupillary distance
56-72
56-72
56-72
56-72
56-72
56-72
56-72
56-72
56-72
adjustment (mm)
Length (mm/in.)
118/4.6
145/5.7
145/5.7
180/7.1
179/7.0
179/7.0
179/7.0
163/6.4
197/7.8
Width (mm/in.)
185/7.3
185/7.3
185/7.3
197/7.8
197/7.8
197/7.8
197/7.8
185/7.3
197/7.8
Weight (g/oz.)
685/24.2 755/26.6 760/26.8 905/31.9 900/31.7 910/32.1
925/32.6 825/29.1
960/33.9
*Apparent field of view is calculated based on the 15014132-1:2002 standard, and obtained by the following formula:
[tan w'
=
r
x tanw] Apparent field of view: 2w', Magnification:
r,
Real field of view: 2w
**When minimum magnification (8x) is selected
***When minimum magnification (1 Ox) is selected