When buying digital cameras
now days, there are so many questions that tend to pop up. One
question that tends to come up commonly is, “How many mega pixels
should I be buying??
The answer to that question
is as easy as this…Know and understand the structure of the final
print size. The number of pixels that you need for the picture is
determined by the size of the print. Once past a certain amount of
pixels (1.3), the quality of the image has almost nothing to do with
the number of pixels on the sensor. The image contains a good amount
of information to create a clear and sharp print.
Digital images have the
ability to print in many different sizes. However, in order to get
the top quality print, your printer needs a number of pixels on
every square inch to produce a print that appears smooth. In other
words, the number of dots placed on the paper by the printer, must
be sufficiently high that the eye will not detect jaggies (the
visible "steps" of diagonal lines or edges in a digital image).
When this count of the
image’s pixel per inch (PPI) is converted to the dot per inch (DPI)
count of a printer, the image size changes accordingly as the printer
requires more dots per square inch than the monitor’s 72 pixels per
inch. The main point is, the larger the final print, the more mega
pixels the sensor would need. Typically, a 2-mega pixel camera is
more than enough to print out 4x6 print, and 3-mega or more pixel
cameras are recommended for quality 8x10 print.
Lastly, to get the best results, it is best to avoid
printing a low resolution image at a large size print.
back to Photographers Home
Beauty Care Specialists