When comparing the specs between the cameras on today's hottest cell phones
one starts running into an awful lot of Photography specific terminology being
thrown around and the term that seems to have been all the rage lately is Optical
image stabilization or oi if you happen to be into the whole brevity thing now
many phones offered today such as the iPhone 6 Plus are touting ois as the
next great thing in cell phone camera technology and well it's not exactly new
and this form of stabilization has been readily available in ordinary cameras
for some years now but it's not all marketing fluff and unnecessary Fanfare
either because what makes it special is not how new the idea is but how small
and efficient these systems have become now in the past the only image
stabilization readily offered on cell phone cameras was that of the digital
variety which worked all right for minimizing that annoying bobbing effect
NVIDIA footage but did squat in the way of reducing Shake shiness or motion
blur that is caused by camera movement and this is where Optical image
stabilizers come in they help to produce higher quality images by reacting to
stimulus in real time ensuring that the path between the lens and the sensor is
perfectly aligned before the subject is captured thus allowing you the user or
an end software to more easily Focus the image so to accomplish this
manufacturers utilize highly sensitive gyroscopic sensors in any range of two
to many which provide data as to the angle and movement of the camera and
some even exist specifically to provide extra functionality such as improved
vertical stability while taking panoramic shots these directional
sensors work in combination with tiny electromagnets that affect the angle of
either the lens or the image sensor depending on the type of ois employed so
the first type we'll be looking at lens-based applications are found in
high-end cameras and worked by affecting the axis of the lens in response to
movement keeping the image tracked on the sensor as squarely as possible the
main advantage to this style is that the image seen by the user is as stable and
clear as possible but it fails in applications where no distance can be
created between the lens and the sensor so you're pretty much hooped if you want
to jam this kind of tech into a cell phone which brings us to the second type
sensor-based or inbody stabilizers which by contrast affect the angle of the
image sensor in response to stimulus and have the added benefit of being able to
adjust the focal length between it and the lens as well this type of
stabilization can be compact enough to fit into small things like cell phones
while also being a much more affordable and practical option as it prevents the
user from having to haul around a bunch of really heavy not to mention expensive
camera lenses of course that's not to say that sensor-based options are
without their disadvantages since the image projected onto the sensor is not
already stabilized negative qualities such as reduced low light Auto Focus
performance can be an issue especially in instances where there is noticeable
leg in the electronic viewfinder or screen image also these types of
stabilizers are greatly dependent on their movement speed and the size of the
lens in front of them meaning to improve long distance and Motion Performance at
some point the lens must get bigger and as many of us know getting bigger to
improve performance is simply not always an option speaking of improving
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