Hi Darin,

MegaPixels is how many pixels (in millions) that a camera can take
for each picture.

For example your 6 MegaPixel camera can take a digital photo that is
about 3,000 pixels wide by 2,000 pixels high.

3,000 x 2,000 = 6,000,000 or 6 MegaPixels. You may find that the
biggest size, pixel wise, a little less. They just round it up to 6
MegaPixels.

Now DPI is used to describe printing resolution. DPI means "dots per
inch" or "pixels per inch".

Print media folks such as magazines and newspapers will always ask
for 300 dpi images. 72 or 150 dpi won't be sharp enough for print
publications.

HR wants 4 inch by 4 inch photos that are 300 dpi.

That would be an image that is 1200 pixels (4 x 300) x 1200 pixels (4
x 300) or 1.4 MegaPixels.

When you download that photo to your computer the image will actually
appear to be 16 inches by 16 inches because screen resolution is 72
dpi. So it will look huge on your screen and you will have to scroll
the screen to see the entire picture if your screen resolution is set
to 640 x 480. But the image will print out 4 inches by 4 inches on a
300 dpi printer.

If you take a low res shot there really is nothing you can do
"quality wise" to bring it to 300 dpi. You can interpolate the photo
to increase it to 300 dpi which averages out the colors between the
pixels to fill in the space but the photo will look blurry or fuzzy.

So the question is how to set the camera for the 300 DPI to take the
high-res shots. Every camera is different so you should set it for
the highest resolution. I may be a setting called "HQ" or something.
Essentially this will mean each photo will be over 1 Megabyte.

Hope this helps.

Chip














On Oct 27, 2006, at 8:02 PM, badfishracing wrote:

> Chip,
>
> Dumb question I guess, but what is 300 dpi resolution? I've got a 6
> MegaPixel camera, but how does that translate? I had another
> magazine once ask me for 300 dpi. I sent what I had, but it wasn't
> good enough. Is is amateur grade photos, or pro stuff?
>
> Later,
>
> Darin Gilbert
> BadFishRacing
>
> --- In NEDRA@yahoogroups.com, Chip Gribben <futurev@...> wrote:
> >
> > Received this from HR.
> >
> > I spent the better part of yesterday going through all my CDs
> (mostly
> > Power of DC stuff since that is basically the only hi-res NEDRA
> event
> > pics I have), but didn't hear back from him on whether they
> received
> > them or not. Matt sent some pictures too.
> >
> > I have very little 300 dpi images. Most of the pics I have are
> from
> > people who send me CDs and alot of them leave the cameras set at
> 144,
> > 150 or 180 dpi. I'm assuming because 300 dpi images use alot of
> space.
> >
> > Most of us don't take pictures with the expectation that they
> could
> > be used someday in a national publication.
> >
> > Kind of weird though. This is the second time I received a
> message
> > from them but when I respond back with info they never
> acknowledge
> > one way or the other. They had to get the first message I sent in
> > response to their request about a month ago because I sent them
> John
> > and Roderick's info.
> >
> > The thing that can be learned from this is we really need hi-res
> pics
> > of the cars. Something to think about for the next event. I've
> been
> > approached by several racing photographers and this might not be
> a
> > bad idea because now its been a scramble to dig up decent
> > photographs. Or we need some volunteers to take some high quality
> > high-resolution shots for PR purposes.
> >
> > I did what I could. If we get in that's good. If not, whatever.
> >
> > Chip
> >
> >
> >
> > Begin forwarded message:
> >
> > > From: "Campbell, Christopher" <Christopher.Campbell@...>
> > > Date: October 23, 2006 7:09:51 PM EDT
> > > To: pr@...
> > > Subject: HOT ROD Magazine inclusion
> > >
> > > Hi,
> > >
> > > I'd like to use NEDRA as our Motorsport of the Month for
> February,
> > > which is the issue we are currently working on. I've been in
> > > contact with two members, John Wayland, and a gentleman named
> > > Rodney whose last name I forget, several times over the past
> month,
> > > but both are hard to contact and neither have been able to
> provide
> > > usable pictures. What I'm requesting is a shot of a NEDRA drag
> > > race with cars lined up at the tree, a shot of a conversion
> type
> > > car, a shot of a typical conversion engine compartment, as well
> as
> > > the battery packs. The issue appears to be that I need photos
> that
> > > are high-resolution; 300dpi at 4x4 inches. The deadline for
> > > inclusion in this issue is Thursday the 26th of October. I
> tired
> > > to use NEDRA in the January issue, but due to the photo issue
> was
> > > forced to push it back a month. Can you provide photos perhaps
> > > from past events, or recommend someone who will work with us on
> this?
> > >
> > >
> > >
> > > Thanks for your help,
> > >
> > >
> > >
> > > Christopher Campbell
> > >
> > > Associate Editor
> > >
> > > HOT ROD Magazine
> > >
> > > 323/782-2601
> > >
> > >
> >
>
>
>