If you have questions about a new camera, using the camera on your
smart phone, or questions about photography in general, you are invited
to bring them to the Van Wert Area Photography Club’s next meeting. It
will take place Thursday, Jan. 12, at 7 p.m. at 114 S. Race St. You can
feel free to ask any question on these topics and there will be
experienced photographers on hand to answer them or try to find an
answer for you on the net. This question and answer session is offered
as a service to the community, so there will be no cost nor obligation
to those who participate.
One of the questions some may have could
be related to image stabilization or IS. Basically IS is a mechanism to
reduce or eliminate motion blur due to camera movement caused by the
photographer, wind, or location such as a moving car or helicopter. If
you can use a shutter speed of 1/500th of a second or faster, IS is not
important because the shutter speed will cancel out the camera shake.
Where there is low light, however, such as sunrise/set or shooting
indoors, IS may allow you to get a good sharp exposure that is 3-4 times
slower than usual.
Camera manufacturers have built a marvel of
electronics into the camera body or lens that is controlled by an
on-board micro computer that counteracts the motion of the unit. They
actually have four different modes. One is for shooting subjects that
are not moving. Two is for moving subjects. Three is a combination of
one and two that are activated when the shutter button is pushed all the
way down. (This system is mostly on the very long telephoto lenses used
in sports photography where the subjects or composition are changing
rapidly.) Four is a Hybrid IS found in a macro lens where the motion may
be up or down rather than left to right or top to bottom. You may have
been puzzled by the advice to shut the IS off if you are using a tripod.
The fact is, the lack of motion actually confuses the system and the
image starts to jump around in the view finder. So there you have it.
The club wishes you a Happy New Year and hopes to see you on the 12th.