Nikon DTM-552 - SPECIFICATIONS; 5-1. Main Body

5. SPECIFICATIONS
5-1
5
SPEC ATIONSIFIC
5-1. Main Body
 Telescope
Tube length: 158mm/6.22in.
Magnification: 33X
Effective diameter of objective: 45mm/1.77in. (EDM: 50mm/1.97in.)
Image: Erect
Field of view: 1°20' (2.3m at 100m/2.3ft. at 100ft.)
Resolving power: 2.5''
Focusing distance: 1.3m/51.1in. ~ Infinity
Focusing method: Anallactic focusing
Reticle illumination: 3-level variable
 Angle measurement
Reading system: Photoelectric incremental encoder
(Diametrical detection for H/V circles)
Circle diameter (reading): 88mm/3.46in. (79mm/3.11in.)
Minimum display increment
DTM-552
(360°): 0.5''/1''/5''
(400G): 0.1mgon/0.2mgon/1mgon
(MIL6400): 0.002MIL/0.005MIL/0.02MIL
DIN18723 accuracy: 1''/0.2mgon
DTM-532
(360°): 1''/5''/10"
(400G): 0.2mgon/1mgon/2mgon
(MIL6400): 0.005MIL/0.02MIL/0.05MIL
DIN18723 accuracy: 2''/0.5mgon
DTM-522
(360°): 1''/5''/10"
(400G): 0.2mgon/1mgon/2mgon
(MIL6400): 0.005MIL/0.02MIL/0.05MIL
DIN18723 accuracy: 3''/1mgon
 Dual-axis tilt sensor
Method: Liquid-electric detection
Compensation range: ±3'