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Q: What picture resolution do I need to print a 4 x 6 inch photo
print? What about 8 x 10 inch prints?
A:
Q: Should I have any concerns about putting my digital camera
through the X-ray machines at the airport?
A: No, there is no evidence that putting your camera through an
X-ray machine causes any harm.
Terms
Q: What is an SD memory card?
A: The SD Card is a highly secure stamp-sized flash memory card that
has a fast data transfer rate and consumes very little battery power.
The SD card can be used in a variety of digital products such as digital
music players, cellular phones, handheld PCs (HPCs), digital
cameras, digital video camcorders, smart phones, car navigation
systems, and electronic books.
Q: What is the difference between optical zoom and digital zoom?
A: Optical zoom is similar to the zoom feature that you find in a
regular 35mm camera. When you press the button to zoom in or
out, the physical lens elements move inside the camera to achieve
the desired effect.
The digital zoom does not have moving parts. Instead it uses the
camera’s “electronic brain” to digitally magnify the optical image.
This digital magnification causes the image to be more pixelated
(grainy picture) than the same image taken with an optical zoom.
Q: What does the term megapixel mean?
A: A pixel is a small square of visual information that makes up an
image on your computer screen. When all of the pixels are displayed
side-by-side, they make up the complete picture that you see on the
screen.
For example, a 17-inch computer monitor that has a resolution of
1,280 pixels wide by 1,024 pixels tall makes up an image on your
Print Size Minimum picture
resolution needed
Megapixels needed
4 x 6 1024 x 768 Less than 1 megapixel
5 x 7 1280 x 960 1
8 x 10 1600 x 1200 2 or more
Larger than
8x10
2048 x 1536 or more 3