Q&A For Digital Photography
This department will attempt
to provide solutions to problems readers may have getting into and using
digital cameras, scanning, and using digital photographic images with
a computer and different kinds of software. All questions sent to me
will be answered with the most appropriate information I can access
An All-In-One Photo
Printer Not Reviewed
A. The Epson RX500 should provide photo printing performance very similar to the Epson Stylus Photo 900 model I reviewed in the October 2003 issue of Shutterbug, as the printing specifications are the same. The report is available to read on the Shutterbug website at: www.shutterbug.net/test_reports/1003sb_epson/index.html.
Camera File Size/Resolution?
answer your last part first, I would guess that 72dpi was established
with some early digital camera makers because the first low-resolution
cameras were used mostly to make pictures for the web, and 72dpi is
VGA screen resolution.
Digital Camera Depth
all other factors are the same and the exposure area (film frame size)
is smaller, depth of field is greater because the effective aperture
is smaller. In other words, if you take the same picture area, focus
distance, at the same exposure setting (like f/8 and 1/250 sec) with
a film camera like a Mamiya 645, compared to a digital camera that has
a sensor area that is about 1/4 or less the size of the film frame of
6x4.5cm, the actual size of the aperture will be proportionally smaller.
The physical size of the lens aperture opening determines the size of
what is called the "circle of confusion." In optical performance
this defines the difference between in focus and out (soft/sharp) as
seen in a same size print, for instance.
For Digital Camera Files
EZDigiMagic Portable Digital Photo Storage Device is one of several
similar portable storage devices containing a hard drive and card reader
that will download card data in the field. I believe if you made a search
at Google you will find several other brands with comparable features
and specifications. These devices come from putting together some relatively
standard components, mostly from the laptop computer field, with an
auto-controller firmware chip to facilitate the card download.
Regarding making the transition to a Mac, there should not be any major
cost for software. Adobe will provide the means to migrate from Windows
to Mac for their software. You just have to agree to destroy the old
software and pay a very small fee for a new disc and shipping. All hardware
makers, like Fuji and Epson, provide free software drivers for their
devices for either Mac or PC. In fact the CDs for any devices you have
should have drivers for both operating systems--however, I would
use a switch to a new computer as an occasion to install the latest
version of software drivers for all your peripheral devices.
The Best & Most
Efficient Way To Use A Scanner
of the most popular and successful scanner lines is Epson. Even though
Epson provides their own software drivers for their highest performance
scanner models they also bundle LaserSoft's SilverFast Ai with
the product. In fact, quite a number of years ago I became acquainted
with LaserSoft's SilverFast and its owner and founder Karl Heinz
Zahorsky when his relationship with Epson began with Epson's first
high-performance professional scanner, the Expression 836XL.
The Future Of Digital?
If what you describe as the "picture album experience" is
true and accurate, the limited print size involved indicates you really
do not need a 6.1-megapixel $1500 prosumer camera.
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