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A-Z of Digital Photography / Size: 519 KB *.zip
The Digital Camera as Photo Factory – The Basics
Probably the biggest question of all is whether you want to buy a
digital camera at all. There are pros and cons to the decision and you
don’t need a digital camera for digital imaging. You can always use a
standard film camera and have selected slides or negatives scanned at your
local photofinisher. Here’s a table that weighs the Pros and Cons of each
approach.
If you’re considering going digital, here are a few more reasons to get
even more serious.
Digital cameras are becoming more than just cameras. Some digital
cameras are capable of capturing not only still photographs, but also
sound and even video-they are becoming more like multimedia recorders than
cameras.
In addition to displaying and distributing photographs, you can also
use a photo-editing program to improve or alter them. For example, you can
crop them, remove red-eye, change colors or contrast, and even add and
delete elements. It’s like having a darkroom with the lights on and
without the chemicals!
Introduction – The right Selection
While the race around to higher pixel solutions, the manufacturers of digital cameras attempt for themselves to outdo mutually. Up to 5 mega pixels offer the cameras. However a camera is completely sufficient for many
users with 2 to 3 mega pixels.
With pictures up to format 13 x 18, the unaided eye observes no
more high-quality difference between the camera classes. In such a way, cameras of the 3-
mega pixels category produce rich in contrast and sharp photographs and leave no wishes open.
The purchase of a 5-mega pixel camera is only profitable under specific assumptions.
If the user often requires large-formats photographs (larger than for instance A4). Or if sections become enlarged from the picture during aftertreatment.
Ambitious photographers who consider to manual setting options the
4- and
5-mega pixel-classes also operating better. For example the sensitivity to light, shield or shutter speed are
variable.
However, it is considering that the 5-mega pixel-photography involves higher follow-up costs:
a high-resolution photograph (for example 2560 x 1920 pixels) requires more storage space (approximately 6 MB)
and requires longer charging time. The user must
invest more money in storage media as Compactflash-Cards or
computer hard
drives.
If you’re buying a digital camera for the first
time, you can quickly get lost in the details-there are lots of
them. However, before looking at specifics, you should think
through how you want to use the camera and its photos.
Will you be shooting indoors? This will
determine the quality of the flash you need.
Will you be photographing static scenes
such as home interiors, or action shots such as sports? This
will determine the best viewfinder and lens.
Will you be photographing wide angle scenes
such as landscapes and home interiors, telephoto scenes such
as portraits, or close-ups such as stamps and coins? This will
determine the focal length of the lens you need and whether
you need a zoom lens, auxiliary lenses, or macro mode.
Are you a casual user, or a serious amateur
or professional photographer? This will help you determine how
many manual controls you’ll want on the camera.
Will you print the photos as snapshots,
enlargements, or embed them in word processed or desktop
published documents? Or will you publish the images on a Web
page, e-mail them to others, or include them in a
presentation? This will determine the best resolution for your
situation.
Comment
Points are important for the practice effort as the battery lifetime, ergonomics and function scope. All photo parameters of this semi-professional camera can be appeared readily manually. Some cameras are configurable
only in a limited way.
There are so many digital cameras with so many
different features that it’s hard to compare them unless you know
what features are available and how they affect your photography.
Here is a checklist of features you can use when choosing a camera
for yourself. Just keep in mind that a checklist provides only a
rough guideline because a list of features and specifications
doesn’t always tell the whole story. Lens quality is hard to
quantify, as is the quality of the software inside the camera
that’s messing around with every image you take. To make the best
camera choice, read reviews from sources you trust and try to look
at side by side comparisons of images.
One captain camera model may be designated as snapshot cameras. However, one does not
characterize digital cameras in general. Snapshots require a fast reflex not only from the photographer but also from the camera. However the releasing delay of the digital cameras foils the fast shot.
In such a way, almost a half second passes by the case of some models of the momentum of ransom until the photograph is gained. If the intern camera
storage medium is full, further fractions of a seconds pass by until the picture is secured
on the alternation storage medium.
Users who want to photograph fast in spite of this technical Handicaps should ensure that the camera supports fast and robust compact flash boards or Microdrive medias.
During the purchase of a digital camera, users may themselves
are blinded neither from mega pixel numbers still from the altogether elegant Styling of the cameras. Because the devices are too expensive for a blemish purchase. According to the basic decision on the mega pixel-class, the
user should test precisely which adjusting options he requires while photographing and whether all important functions are to be activated fast and
simply.
Correct photograph quality: Between a snapshot and a really good photograph that is often only a or other professional manipulation. In the following, we present tips and tricks which influence picture quality significantly already while including the photograph.
The advantage for the customer: If he has already chosen the correct attitudes while photographing, the time-consuming aftertreatment of the photograph is dropped. In addition, video processing programs can only correct in a limited manner photograph quality.
Adapt sensitivity to light: Unlike analogous cameras which can employ only a film model simultaneously in each case, the digital relatives are more versatile: These adjust the sensitivity to light optionally automatically depending on model of camera.
Only the digital cameras the one captain class may incorporate with in most cases a fixed sensitiveness. On the other hand, the
photographer selects from several grading of the models of professionals.
Low sensitiveness supply, a better colour rendering and a lower hissing which lets regular display spaces often appear unpleasantly grieselig generally. In
case of dark picture motives, the exposure time unlike presentations illuminated brightly must be extended clearly. This often leads to diffuseness in compatibility with unintentional
camera waggling. In such situations, the photographer should choose a higher sensitiveness. Preserved also a tripod before blurred pictures. Much models of camera control the sensitivity to light themselves continuous.
However, the photographer adjusts the ISO values better manually for long-term illuminations. The doubling and/or halving an
ASA-number amounts to a halving respektive of a doubling of illumination.
ASA-defaults 100 satisfies for example in order to also receive sufficiently on a clouded day illuminated pictures.
Light and color: The human eye adapts automatically to different sources of light.
Current digital cameras adapt this mechanism and control the deviation from the normal daylight balance with the automatic white adjustment.
Among other things, the camera includes artificial light, neon and flashlight non-in a falsified manner in this way.
If a color (for example red or blue) dominates in the case of a
picture motive, the automatic white adjustment possibly causes a hue in the photo. In such cases, the
photographer adjusts the available or favoured source of light manually by white adjustment. This is sources of light especially different in mixing bright situations, with which
is in the picture motive included.
Provided that not individual from the photographer adapted, the exposure meters inserted in modern digital cameras do not include bright or dark motives optimally. Motives as a bright poster on a white wall or a snow landscape would could
sink in a flat grey. Therefore, the photographer must patch manually illumination. The rule is valid here: Bright objects must be underexposed in a overexposed manner, dark objects on the other hand.
In the case of topic memory extension is imminent some owners of a digital camera with
Smart-Media-Card an unpleasant surprise: New memory modules with higher capacities can indeed only be used in few models. Itself the verse silver plated current cameras ones if the first
Smart-Media-Cards available at more than 128 MB of memory are � which cards become then simple way no more recognized. How large the memory capacity supplementary at the most is, depends
of the Smart-Media-Cards of the controller integrated in the camera � and this is at present designed at the gross of the cameras to a maximum of 128 MB.
Therefore, it is important before the memory purchase to keep informed exactly about the possibilities of the camera. However, relief can bring a firmware update which must be carried out by the manufacturer often however. Compact flash boards do not know such restrictions � the controller is firm component of the memory card here. However, it is also he that constitutes high-quality differences clear at the cards it. In addition to compatibility with many different models of camera, he also determines the reading and typing-speeds.
Even the service life of the compact flash memory card depends on the controller: Although the number of the read/delete processes at the flash
memory is uncritical with up to 100 000 cycles, individual memory
sectors can quite turn out meaningly in former times. As at a fixed disk, the controller must recognize the defective fields and exclude them from use. If this does not function correctly, the service life of the whole memory card can abridge itself clearly. Arguments for flag
memory with which high-quality electronics, compatibility lists and special guaranteeing offer safety.
The sales figures of compact flash and nautical mile kind media may fit identical according to GfK investigation from beginning in 2001 at 39 and/or 35 percent market coverage � both standards are firm anchored in the market and may offer promising future. On place three lands at 20 percent Sonys Memory embroidery � however, this number also contains the effort in camcorders and music-Playern. At maximum capacity has at present compact flash at up to 300 MB the nose in front. Increase place for digital cameras only offers that IBM-Microdrive, a mini fixed disk at up to 1024 MB. However, a broader compact flash slot is necessary to the company from the model II. Nautical mile kind media memory card, known early as sound state floppy disk Card (SSFDC), gives it as well as the Memory Stick of Sony at a maximum of 128 MB.
The A-Z of Digital Photography
- Batteries
- Camera Features
- File Formats and Compression
- Glossary
- How a Digital Camera works
- Interesting Links about Photography
- Resolution and
Print Sizes - Storage Media Types
- Types of Digital Cameras
- What is a Digital
Photograph
- Adobe’s Acrobat Reader PDF-File
- original by Olympus�
- English
Language
- Going digital saves you
money in the long run by not buying rolls and rolls of film and paying for
development. - It saves you time
because you don’t have to make two trips to the store to drop off and then
pick up your pictures. - Digital cameras
instantly show you how your pictures look so you’ll no longer have those
disappointments a day or two later when your film is developed. - You can view images
before they are printed and if you don’t like what you see, edit them to
perfection or delete them. - Digital photography
doesn’t use the toxic chemicals that often end up flowing down the drain
and into our streams, rivers, and lakes. - No more waiting to
finish a roll before having it processed. (Or wasting unexposed film when
you can’t wait.)
|
|
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| Introduction – The Pros and Cons of Digital Photography
|
| Point to Consider | Digital Camera | Scanned Film |
| Immediacy | Images are instantly available |
Images are available only after the roll is finished and processed |
| Resolution | Resolution (detail) is low compared to film. Even digital cameras with over 1 million pixels are only great for 4 x 6 prints and good for 8 x 10s. |
Excellent, many times higher than digital cameras. You can make 16 x 20-inch prints from 35 mm film if you shoot with a tripod. |
| Storage | Magnetic or optical media adds to total image costs. |
Negatives and slides are self storing, but slides must be put in sheet holders for protection, convenience, and ease of use. |
| Longevity | Storage media may not be readable in the future as formats and devices change. Prints are not as stable as silver-based prints. |
Slides and prints can always be viewed without devices; and slides, negatives, and prints should easily last a century or more. |
| Cost | Film and processing cost is eliminated so you can shoot at no cost. However, costs are incurred when you store or print. Battery costs will also be a factor over the life of the camera. |
Film must be both purchased and processed. However, at that point there are no additional costs unless you want additional prints or enlargements. |
| Creative Controls |
All but the most expensive consumer level digital cameras lack all of the controls found on the least expensive SLR cameras. Choice of lenses is very limited. |
Professional level controls are found on even the cheapest 35 mm SLR. There is also an extensive choice of lenses for most models. |
| Camera Types | |
| Item | |
| Point and shoot camera | Minimal control but easy to use. Prints up to about 5 x 7. |
| Megapixel camera | Better prints, good up to 8 x 10. |
| Multi-megapixel camera | Even better prints and even larger file sizes. Great prints up to 8 x 10 and larger. |
| Professional camera | Expensive but lots of creative control. |
| Image Sensor Types | |
| Item | Comment |
| Functions for Professionals
|
| Not for Snapshots
|
| Tips and Tricks for the perfect Photos
|
| Caution before the Surprises come
|
expensive.
expensive
prints
height.
sensitivity so less light is needed for a good exposure.
store as many images. Uncompressed format is best but image files
are very large.
other.
full storage device, insert a new one, and keep on shooting.
images.
but much faster than the serial port.
to configure.
available. Ideal for transferring digital photographs.
yet widely available.
storage device so it can be read by the computer, printer, or other
device.
port by cable. To transfer files, you remove the storage device from
the camera and insert it into the reader.
devices. Not very fast and connection is blocked by obstacles.
you to bypass the computer when you want to print images.
allow you to display images from the camera on a television
set.
the camera
directly from the camera.