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Photographs can be as important as
words in communicating your message to your audience. In gift
planning publications, good photos help express your mission and/or
honor prior donors while conserving copy space for important gift
planning information.
Sometimes we have the benefit of
using high quality, professional photos in publications. Often,
however, we settle for poor quality images. In some cases, such as
when using photos of a deceased donor, it may be impossible to
secure an excellent photo.
There are many variables to what makes
a photo good. We would like to offer some helpful suggestions and
tips for you to consider before sending photos for your particular
piece.
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Is the photo in focus? If not,
remember that it will not become any more “in focus” when
reproduced.
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Is the photo properly exposed? If
it is too light or too dark, it will probably be difficult for
your reader to see in print.
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Is the subject of the photo clear?
Is it apparent what is happening, or what is most important to
show? Are there any elements in the photo that detract from the
central subject?
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Make sure you get all of your
subject in the frame. For instance, don’t cut off the tops of
heads. Let our graphic designers do any photo “cropping” for
you.
Image quality and overall clarity can be achieved whether you are
using a standard or digital camera. Basic principals of photography
are the same, but keep in mind that the resolution (pixels per inch,
or “ppi”) affects final printed quality on digital photos. Also
remember that if you are scanning a photo for later use, quality
settings on your scanning software and equipment are significant.
Read on for more specific technical information. If you have any
additional questions, please feel free to contact your Sharpe
representative.
Conventional Photography
Two important aspects
of image quality related to conventional film speed are sharpness
and graininess. Sharpness refers to the film’s ability to record
detail with good definition. As a rule, the lower a film’s ISO
(formerly referred to as “ASA”) speed, the greater its ability
to render subjects sharply. Graininess is the speckled or granular
texture sometimes seen in photos. It is a product of the film’s
light-sensitive emulsion and is more apparent in pictures made with
faster (higher ISO) films. The faster the speed, the larger the size
of the grain, but the lower the amount of light needed for good
exposure.
Enlarging the
negative also affects sharpness and graininess. At print sizes (5”
x 7” or smaller), grain is barely noticeable, even with fast
films. But as enlargement increases, graininess becomes more
apparent, and image sharpness diminishes.
Scanners
When scanning a high-quality photo
(regardless of size), set the scanner’s output to its highest
quality possible. This will increase the file size, but is necessary
for print quality. The lower quality settings (75 dpi, for example)
are used primarily for web graphics. These appear pixilated or
“jagged” when reproduced in a printed piece.
We suggest a minimum resolution of
300 dpi when scanning photos that will be printed in the relatively
small size generally used in Sharpe publications.
Digital cameras
As with film cameras, there are wide
variations in the quality of digital cameras and the images they
produce. Generally, we recommend using a camera with the highest
possible resolution capability, usually expressed in “megapixels.”
Today’s consumer cameras typically are capable of at least 2
megapixel resolution, while professional models exceed 5 megapixels.
Any camera in this range should capture a good image when set to its
high quality setting. Use the following general guidelines when
sizing images to aspect ratios.
- For a 4” x 6” image, the image resolution should be 480 x
640 pixels minimum.
- For a 5” x 7” image, the image resolution should be 768 x
1024 pixels minimum.
- For an 8” x 10” image, the image resolution should be 1024
x 1536 pixels minimum.
Best color and quality results
for digital camera pictures
Color quality begins with the picture
capture. To optimize the capture, use the following tips:
- Review your camera User’s Manual to understand the best
setting for your camera in the lighting conditions you are using
(daylight, nighttime, indoors, etc.).
- Set the Quality setting on your camera to capture a sufficient
number of pixels for your prints. (This makes for larger files,
but also better quality.)
- Use the largest possible resolution your camera has available.
- When saving the picture, if you have the choice, select RGB as
the default color space for your pictures.
- Save your picture in 24-bit color.
Image compression
Photographic images generate large
amounts of data. In order to handle digital pictures more
efficiently, they are compressed. Some methods of compression are
lossless. That is, the compressed file will result in a picture
that, when uncompressed, is identical to the original. These methods
generally don’t reduce file size by more than a 2:1 ratio. (TIF
and EPS files are examples of this format.) The methods used to
achieve higher compression levels are referred to as lossy. That is,
they sacrifice some of the original image data in order to achieve
the significant reduction in file size. Moderate levels of
compression, those less than a ratio of 10 to 1, are often used with
good results. Compression levels greater than 10 to 1 generally
result in a loss of print quality. (JPG and GIF files are examples
of this format.)
For the best quality reproduction, we suggest saving in TIF or EPS
format with minimum compression. With today’s higher-speed
internet connections, even these large files can generally be sent
via e-mail relatively quickly.
Black and white photos
As with color photos, contrast and
lighting take a large role in making quality back and white photos.
Color photos can be converted into black and white, but never the
other way around. This step should be done by Sharpe or your design
department whenever possible.
If the resolution is not
acceptable quality
You can send the file anyway, but you
may not be satisfied with the print quality. Sharpe will contact you
if a picture with questionable quality arises.
We at Sharpe are here to help you get
the highest quality product to your audience. We will be happy to
answer any questions you may have.
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