Duration
batteries
52 sets (x 20 images each) were taken over 5 days. This was approximately 52 hours of daylight as trialed in winter with shorter day length, summer would use batteries faster. The batteries reduced in charge from 1.40V to 1.29V. It appears the camera could stay out for many more days or under more intense photo taking periods and still cope with an original set of batteries.
SD card
The maximum SD card size that can go into the camera is 8GB (comes with a 2GB card). Each photo taken during the trial period ranged in size between 60 – 120KB as JPEG’s.
Therefore
•average of 90KB image by 20 produces a set at 1.8MB
•using average 1.8MB set, the camera can store over 4,000 sets of images
Focal distance
The focal distance has 3 settings, 1.5, 2 and 3 metres. But as the focal distance uses a rotating button you can also estimate any focal length between 1.5 – 3 metres. For example during the trial I chose 2.2m as this was the distance to a nearby tree for easy camera mounting. I altered the rotating focal length button 1/5 of the way from 2m to 3m (an estimated 2.2m focal length).
Note: The camera comes with a string line measuring tape, but it was difficult to set the camera independently (without someone helping you hold the other end of the tape) using this string. You need a measured solid stick, or a stiffer measuring tape to help guide you if you are setting up on your own.
The camera could easily be mounted onto a metal or wooden stake to get the distance right. Although it is really easy to mount on a tree first and then set the feeder/water point to meet good camera requirements. Note: I do not generally agree with feeding wildlife, the bird feeding used in this trial is part of a captive release program for threatened bird species. I am although happy to recommend water points, such as bird baths which can be used just as effectively as bird attractors.
To assist in set up the area that the camera takes a photo of varies depending on the focal length as below:
•1.5m focal length produces an approximate 27cm x 21cm frame taken.
•2.0m focal length produces an approximate 37cm x 30cm frame taken.
•3.0m focal length produces an approximate 54cm x 40cm frame taken.
Timing
The camera takes 20 images in 13 seconds. Or about 0.65 hundredths of a second between shots.
The first image is taken at about 1.3 seconds after trigger. The camera also seems to re-boot quickly after a set of 20 images and within seconds is ready to capture the next round. This has scientific potential as for instance a nestling Helmeted Honeyeater was taken from a nest by a Kookaburra in less than a second which could almost be caught on film using this camera, but not guaranteed. More trialing needed to ensure that it can capture everything required for certain studies.
The camera did take blank sets of 20 images during the trial, maybe triggered by falling leaves or branches? This did not in any way effect the storage space during the trial or greatly lengthen the amount of data that was required to be checked at the end of the trial.
Summary Part 1 – Camera Set Up, Image Quality, Setting Time Function
Summary Part 3 – Weather, Checking / Downloading Footage, Bird Identification, Benefits
Batteries used in research