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Twilight illumination

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Twilight illumination is used for better reticle recognition in low light situations, when non-illuminated reticle would be hard to see. Such illumination systems must offer fine adjustable intensity, since over illumination of the reticle will cause problems seeing the target behind it. This is especially important when hunting in low light, where fine-tuning of illumination intensity level is one of the main parameters on which rifle scopes are judged. Preferably, such rifle scopes have only the central dot in the reticle illuminated. Some have their entire range of intensity adjustment so dim that illumination cannot be seen during the daytime.

Video presentation of Twilight illumination

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VIDEO

Wide-angle riflescopes are built to offer the widest possible field of view for rapid target acquisition. Such scopes are used for close range shooting on driven hunts, while stalking, on dynamic shooting competitions or in close quarter tactical situations. Many of the wide-angle riflescopes also offer the option to use both eyes open when aiming and in this way have an unlimited field of view. Illuminated reticle gives further advantage to the shooter in fast target acquisition; however, such illumination has to be in bright daytime. Common features of wide-angle scopes are:

  • Magnification of 1.0x (or 1.1x as less ideal)
  • Field of view greater than 35m/100m
  • Illuminated reticle with daytime intensity
  • 30 mm tube diameter (hunting models can be mounted with rails)
  • 4, 5, 6, 8 or 10 zoom factor
  • Capped or tactical turrets
  • • Parallax fixed at 100m