"Andrew E" <> wrote in message
news:3f8cfa60$...
> Hi,
>
> Haven't yet got a digital camera but I'm pretty close to making the big
leap
> from film. But before I do I'd like to get a few questions answered.
>
> I downloaded a few 5MP images taken on a Nikon Coolpix 5400 (thats where
my
> research is pointing right now) and each image is just over 2Mb in jpg
> format. Converted to TIFF's they weigh in at 14Mb plus. Now the card
> included with the Nikon is 16Mb which is not a lot, allowing for 6 or 7
jpgs
> or 1 TIFF image. Now last year on a 3 week holiday I shot 8 rolls of 36
> which is 288 images plus. It's fair to assume that I would have deleted
some
> of these along the way if I could have.
>
> Is it possible to increase the storage to 1Gb? Since this would give
> sufficient for a similar trip.
Memory cards have become quite inexpensive. I just bought two128 MB smart
media cards, for less than $30 each after rebate. That is cheaper per shot
than film, even if I only used a card once. Over the life of the card, the
cost per hot is negligible. I suggest that you only use TIFF format for
photos of subjects with much detail, and where you plan to make large
prints. The loss in compressing .jpg files moderately is not noticable in
most cases.
>
> Many of my landscape pics have a degree of "movement" in them. I like to
use
> long shutter speeds (1 second+) to blur movement such as waterfalls,
> breaking waves and the like. Does the same principle apply with digital
> cameras? Is there a physical shutter in the same way as a film camera.
>
You can take one-second exposures, with cameras that let you make the
exposure settings manually. Exposures of more than about 10 seconds are
problematical, because of buildup of noise in the detector. There are ways
to reduce the noise, but not eliminate it.
> Finally.....
>
> Using Photoshop I can see that images I downloaded are 2592x1944. At 72dpi
> this gives an image of 36x27 inches.
That is true for viewing on a computer monitor. For prints, you set the
print size yourself. Prints at 300 dpi (or 250 sometimes) are
indistinguishable form photographic prints. Even prints at 200 dpi are
satisfactory for many folks.
>
> Whats the deal with printing this image at A3 size? Increasing the dpi
will
> reduce the image size but how do I take advantage of the 2880dpi claimed
by
> printer makers ?? Changing the image size in Photoshop to something like
A3
> results in a dpi of about 166 dpi.
>
Pixels and dots are different things. A printer may make several dots for
each pixel.
> I'm foncused as you can tell.
>
> Any direct answers, or pointers to web resources much appreciated.
When you start to shop, there are some Web sites with good info on cameras.
One is
www.dpreview.com.
>
> TIA
> Andrew.
>
>
>
>
>