Using the Canon EOS 50D Camera
This is a great camera with great software. So spend some time
familiarising yourself with it.
The software manuals are available as PDF files on the Canon CD.
These may be also downloaded from the Canon website.
Taking Hemiphotos
The Canon EOS 50D is a very capable camera, and the user has a lot of
control over the settings. This does mean that getting the right settings
can be complicated. It is well worth taking some time to learn how the
camera works before using it in the field. The following notes will point you
towards the appropriate sections of the camera manual.
Page numbers refer to current English version of the Canon manual.
Image Size and Compression
There is a trade-off between image quality and the number of images you
can store on a memory card. Keep image size at 4752 x 3168 pixels for
maximum spatial resolution. At this setting, a typical hemiphoto will take 5
MB as a JPEG or 20 MB if saved in the native Canon RAW format. Lower
image quality may be adequate for many canopies, particularly broad-
leaved canopies, and can significantly increase the number of images you
can store. Do a trial comparison on your site to see if the image quality
makes any significant difference.
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Taking Hemiphotos
SLM8 User Manual v 1
