Electrophysics Night Vision

Digital SLR Cameras – What’s New for Surveillance Photography

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SLR camera
It’s been remarkable to witness the evolution of the SLR camera, first as a sophisticated film camera marveled by all for many years, and now as a maturing digital camera with many very impressive features. The evolution continues as new features are being introduced at a steady rate! For the law enforcement photographer, some of the newest features can be quite useful for portable observation and surveillance, both at night and during the day. This article describes some of the more important features of the digital SLR, or dSLR, camera and how these features improve the state-of-the-art for law enforcement photography.
SLR camera
The Nikon D3S (top) and the Canon EOS-1D Mark IV (bottom) digital SLR cameras

DSLR cameras are highly valued by surveillance photographers because of their resolution, sensitivity, versatility in the field, availability of a wide variety of objective lenses and because they allow an accurate preview of framing close to the moment of exposure. Many photographers also prefer dSLRs, which when compared to compact point-and-shoot cameras, incorporate larger sensors now available with the same size as traditional film formats. These large sensors allow for similar field-of-view values to film formats, as well as their comparable sensitivity.

Over 80% of the dSLR cameras sold today are models from Nikon or Canon. As a result of their predominance, an abundance of lenses and accessories are available for these two camera bodies, resulting in an excellent selection and remarkable pricing.

What You'll Read About:

  • How many pixels do you need in your dSLR camera?
  • What’s new with full-frame sensor cameras?
  • How does pixel size affect imaging performance?
  • What’s with the new "enhanced ISO" capability? Is it useful?
  • How can Night Vision Modules be used for low-light surveillance photography?
  • What are the current Nikon/Canon dSLR models and how do their features and prices compare?
Intensify Your
Digital SLR Camera!

Transform your digital camera/
camcorder and capture high resolution images at night and in low-light situations otherwise too dark for standard digital cameras and camcorders. With AstroScope, the light amplification is equivalent to the improvement of 8-10 F-stops, so that moonlit or starlit scenes are transformed into bright, high resolution images that are easily recorded.

dSLR Camera Target Resolution Calculator
NEW!
Determine resolution performance.
FREE! Try it!
Interested in knowing how many pixels you can put on a target for a given digital SLR camera/lens combination? Simply input one or two parameters into the calculator and your answer appears!
Features:
Calculate the field of view for a given camera and lens focal length
Determine the detection and recognition range based on simple criteria
Determine what lens is needed for a camera to achieve range objectives
PDF Read more about digital SLR cameras and what's new for surveillance photography!
Download this white paper to read the entire article.
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