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Tuesday, 1 November 2011

Trail camera colour balance, sharpness and dynamic range

Fig 1. Acorn full frame
Fig 2. Acorn centre frame
All these images are shot at the same time so conditions for each camera are identical.

I deliberately included a fair amount of sky in the frame to push the dynamic range.
Click an image to open in a new window.

Fig 3. Bushnell full frame
Fig 4. Bushnell centre frame

Colour balance.

The Bushnell is warmer than natural, while the Acorn is slightly cool and the Prostalk much cooler than natural.

Fig 5. Prostalk full frame
Fig 6. Prostalk centre frame
Dynamic range.

The Bushnell dynamic range is by far the best but darker than I would prefer.
The Acorn looses some sky detail and the Prostalk performs poorly with noticeable blue fringing.

Sharpness and clarity.

The Bushnell again performs best while the Acorn is soft in the centre frame image (fig 2). The Prostalk looks sharp in the full frame image (fig 5) but shows the pixels significantly breaking down in the centre frame image (fig 6).

Overall performance.

1 Bushnell   2 Acorn   3 Prostalk

Cameras under test are
 Acorn 5210A 940nm, Bushnell Trophy Cam 2010 model 119445 and Hawke ProStalk PC2000
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This web site is about the wildlife, particularly the mammals, of the Glen Affric National Nature Reserve area in the north west Highlands of Scotland, UK; and the equipment I use to search for them, which is chiefly trail cameras.

I provide a technical support and parts service for the Ltl Acorn range of cameras and the income from this provides for the upkeep of this site and the purchase of cameras for my own surveying.

I hope you find the site useful and informative; and please contact me if you have any questions that I haven't already covered.