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Can
I make prints with my digital camera?
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Yes. Maximum
print size and print quality is determined
by file size for each image or pixel count.
Here’s a basic way of looking at it. Keep
in mind sharpness is a subjective term to
some degree. In this case it is relative to
sharpness of a film camera print of the same
size. We have an online service, the link
is on the our Home Page called....Fotowire...
when you upload your image the software tells
you if the image is good enough for us to
print it. Here are some general parameters.
File sizes:
640X480 – Video resolution, screen use, poor
print quality
1.3 million pixels – a sharp 3X5/ 4x6 print,
very acceptable 5X7
2.1 million pixels – sharp 5X7 print, very acceptable
8X10
3.1 million pixels – sharp 8X10/8x12 print,
very acceptable 11/14
6 million+ pixels – sharp 16X20 print Keep
in mind a 3 million pixel camera can take
a 640X480 shot if set to that pixel resolution.
However, a 1.3 pixel camera can never shoot
a 3 million pixel shot. Millions of pixels
are generally referred to as "mega pixel."
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Are
digital cameras easy to use?
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Consumer grade
digital cameras typically operate like a point
and shoot film camera. They auto adjust their
settings to average aperture (f-stop) and
shutter speeds, auto white balance, and in
most cases, auto flash. They typically have
an optical viewfinder and a LCD screen viewfinder.
There are a few through the lens viewing cameras
in this class but most fall into the professional
category.
Despite this, many of the consumer grade
cameras have manual override for flash, aperture,
shutter speed, ISO settings, black and white
versus color and many more.
All cameras allow the shooter to adjust image
resolution* to use each memory card type to
it’s greatest potential.
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Can
I get a digital camera with a long zoom or wide-angle
lenses or with a powerful flash?
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Most consumer
grade ($300-$2000) digital cameras have either
a fixed focal length wide angle lens, two
times optical zoom (approximately 35-80mm
lens, a three times zoom, up to five times
or even 10 times zoom!)
Some cameras in this class will use a Teleconverters,
fish-eye converter, or wide angle converter
lens to extend this range. A few cameras use
a digital zoom, which electronically enhances
the optical zoom. It gives a similar effect
but image quality is lost depending upon the
amount of enhancement.
Professional SLR (Single Lens Reflex) digital
cameras with interchangeable lenses offer
much more versatility. They use the same auto
focus lenses as the film SLR cameras. The
focal range of the lens on a digital camera
is 1.5X to 2.5X that of a lens on a traditional
film camera. For example, a 100mm lens would
be 150mm on the digital camera. These lenses
also typically offer a somewhat better image
quality and are superior for available light
shooting in many cases. All professional grade
SLR cameras have a hot shoe for a dedicated
TTL (through the lens) flash and often a PC
socket to fire studio strobes.
Similarly, most consumer grade cameras have
a small built-in flash, useful to about 15
feet. They also generally have TTL (through
the lens) light metering and exposure. Some
consumer digital cameras can utilize external
flash or studio strobes for more power and
less red eye.
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How
do digital cameras store pictures?
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- Compact Flash Type I: Stores up to 256
and is adaptable to PCMCIA slots in your
laptop or can be read by an external card
readers. The new card readers we sell handle
all these popular media cards. See our digital
accessory pages.
- Compact Flash Type II: Stores up to 4GB
and is typically used by professional type
cameras. (IBM Micro Drive).
- Smartmedia: Stores up to128MB of memory
and can be adapted to a floppy disk drive,
PCMCIA slot or external card reader.
- Memory Sticks: Sony proprietary memory
type. Used in most Sony Megapixel cameras.
Stores up to 128MB of memory. Can be adapted
to PCMCIA slots, external card readers or
floppy drives.
- Floppy Disk: Used only in Sony Mavica
Cameras. Stores 1.44MB of memory. Goes
in floppy drive only.
- CD-R/ CD/RW: The Sony Mavica Series uses
small 3"-rewritable CD's which can
be read through a CD-Rom in a Mac or PC.
Each holds 156MB.
- SD/ MMC/ XD Cards: These are the newest
cards for the very small digital cameras.
They are available in sizes up to 128 now
with eventual sizes up to 8 GB.
All 5 memory types are re-writeable with
a variety of life spans, with the exception
of CD-ROM's.
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What's
the best digital camera?
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"The one that
suits your needs!" Digital photographers require
different features. These are noted on the
specification lists on this site under each
camera description. If you need help in choosing
the right camera for your needs, read all
of the specs and FAQ’s, then give us a call.
Ask for a sales rep in the digital department
and tell him or her exactly what you want
to be able to do with the camera and any special
needs or applications. They will give you
some recommendations and let you choose the
"best" camera for you.
These questions and answers are generalized
to cover many cameras. This technology is
in a constant state of change. So far, this
has been mostly related to pixel resolution,
ie.-more pixels in each newer camera. Unless
you need to make a sharp photo larger than
16X20, the right time to buy is NOW!.
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What
does DPI (dots per inch) mean?
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1) In computers,
dots per inch (dpi) is a measure of the sharpness
(that is, the density of illuminated points)
on a display screen. The dot pitch determines
the absolute limit of the possible dots per
inch. However, the displayed resolution of
pixels (picture elements) that is set up for
the display is usually not as fine as the
dot pitch. The dots per inch for a given picture
resolution will differ based on the overall
screen size since the same number of pixels
are being spread out over a different space.
Some users prefer the term "pixels per inch
(ppi as a measure of display image sharpness,
reserving dpi for use with the print medium.
2) In printing, dots per inch (dpi) is the
usual measure of printed image quality on
the paper. The average personal computer printer
today provides 300 dpi or 600 dpi. Choosing
the higher print quality usually reduces the
speed of printing each page.
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