| Photography Article 41 |
Photography Article 53
Depth of Field
By:
Mark Sincevich
If you would like to be able to photograph jewelry or other
smaller objects and want to make sure that the entire product is in focus, then make sure you have
a macro lens. An example is a macro 1:2.5 (that is what is
indicated on the lens).
First, it's a good idea to have a light tent and lights to
photograph small objects like jewelry. If you are a Canon
photographer, then having the Canon Macro f/2.5 is a great first
step. The light tent is about the size of a medium-sized stereo
speaker. Also, this lens gives you close-ups up to half of life
size. Certainly the f/2.5 gives you a great background blur, but
if maximize the aperture, you can go as high as f/32!
If you are shooting at a shutter speed 1/125 at f/2.5 with ISO
100, this might not give you enough light. First, put your camera
on a tripod if you haven’t already done so. You will also need a
cable release. I recommend that you try a shutter speed of 1/30 of
a second. Change the aperture to something like f/8 or f/11. This
should give you plenty of room for depth of field. Do a meter
reading in your camera (better yet with a hand-held light meter) …
you might have to adjust the ISO to 200 or even 400 to give you a balanced meter reading.
Another idea is to bring a stronger light into the setup, so that
you can get a higher aperture (more depth of field) with the same
settings. Also, if you want to obtain full-size reproductions with
your photography, then you will need the Canon Life-Size Converter EF for about $242.
Mark Sincevich is the
Executive Director of the Digital Photography Institute (DPI) as
well as a world-class professional photographer. He regularly
speaks about photography and related subjects, is frequently
quoted in the media and is the founder and Chief Perspective
Officer of Staash Press.
Mark is also the creator of the Staash
Perspective System (SPS). The SPS takes its inspiration from photography and teaches that simplicity leads to more powerful
communications. He can be reached at 301-654-3010 or
www.digitalphotoinstitute.com .
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