HELIA 42 RF

COMFORTABLY EASY AND RELIABLE

8x42 / 10x42

HELIA 8x42 RF I
  • HELIA 8x42 RF I
  • HELIA 8x42 RF II
  • HELIA 8x42 RF III
  • HELIA 10x42 RF I
  • HELIA 10x42 RF II
  • HELIA 10x42 RF III

The lightweight and ergonomic HELIA 42 RF perfectly combines brilliant optics with reliable targeting up to 1,500 m on common hunting targets (deer, tree). It stands out for intuitive simple handling and useful hunting features like patented EAC (Enhanced Angle Compensation) and scan mode.

PRODUCT HIGHLIGHTS

  • Easy and reliable targeting up to 1,500 m on common hunting targets
  • Intuitive simple menu navigation
  • Patented EAC-function (Enhanced Angle Compensation) for angle correction
  • Long-range (LR) function for ranging easy to detect targets up to 4,500 m
  • Premium-quality OLED display with five manual brightness settings and display in meter or yards
  • Scan Mode, temperature and air pressure display
  • Extra long battery lifetime ~ 4,000 measurements

TECHNICAL DATA

HELIA 42 RF 8x42 10x42
Magnification 8 10
Objective lens diameter (mm) 42 42
Eye relief (mm) 18 16
Exit pupil diameter (mm) 5,3 4,2
Pupil distance (mm) 58 - 73 58 - 73
Twilight factor (ISO 14132-1) 18,3 20,5
Field of view (m/1.000m) 122 107
Field of view (°) 7,0 6,1
Field of view apparent (°) 56 61
Near focus (m) 5 5
Diopter compensation (dpt) ± 4 ± 4
Measure range - standard (m) 5 - 1.500 5 - 1.500
Measure range - LR (m) easy to measure targets up to 4.500 up to 4.500
Range-finding accuracy (m) +/- 1 up to 100 +/- 1 up to 100
  +/- 2 up to 1.000 +/- 2 up to 1.000
  +/- 0,5% over 1.000 +/- 0,5% over 1.000
Display type OLED OLED
Brightness levels 5 5
Measurement duration 1 s 1 s
Display Auto-off 5 s 5 s
Adjustment position twist-in eye cups 4 4
Waterproof (nitrogen filling)
Height x Width x Depth approximately (mm) 145 x 132 x 73 145 x 132 x 73
Weight (g) 900 900
m/yds display
Laser category 1M 1M
Single measurement
Scan measurement
Angle correction EAC-Function EAC-Function
LR measurement
Temperature measurement
Air pressure measurement
Battery type CR2 Lithium (3V DC) CR2 Lithium (3V DC)
Battery lifetime ~ 4.000 range cycles ~ 4.000 range cycles
Guarantee 10 years 10 years
Guarantee electronics 2 years 2 years
Operating temperature mechanical (°C) -10 / +55 -10 / +55
Operating temperature electronical (°C) -10 / +55 -10 / +55
Accessories (inclusive) Ocular and objective cover,
Carrying strap with quick release fastener
Ocular and objective cover,
Carrying strap with quick release fastener

EAC Function

Assume the distance from the target is 400 m
Assume an angle of 40°
Rifleman's rule result: 306 m
EAC function result: 321 m

As the example shows, the distance determined by the EAC function differs from that of the rifleman's rule by 15 m, a distance which, depending on calibre, projectile, barrel length, etc. can already have a significant impact on the accuracy of a shot.

DATASHEET

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