Photography is undoubtedly one of the most important inventions in
history--it has truly altered how people conceive the world. Now,
we can see everything clearly, including that which is actually
many miles or years away from us. Photography lets us encapsulate
moments in time and conserve them for years to come.
When
selecting a lens, make sure it fits your camera, as not all lenses
fit all cameras. Even if you change to a newer model of the same
manufacturer's camera, the old lens may not work. If the lens has
an electric zoom, iris, and maybe even focus, these functions
could be powered and controlled by a multi-wire cable that
connects between the lens and the camera. Therefore, getting the
right signals and voltages from the camera to the lens makes it a
tricky matter.
Lenses are described by focal length, usually telling you the
lens' widest image angle and the zoom ratio. The focal length
measured in millimeters is number derived from a mathematical
formula.
If you need to shoot in humid climates, keep your camera and
lens sealed securely. Let the two warm up to outside temperatures
before you use them. This prevents condensation from forming on
your gear. If dampness gets inside your lens, fungus starts to
grow and it is nearly impossible to remove.
Choosing a lens for your camera can be one of the toughest
decisions to make, especially if your camera is a specialized one.
If you want to capture a lot of activity you will not be able to
identify minute details at a far away distance. Conversely, while
using a lens or lens setting to capture close-up pictures from a
distance you must sacrifice a lot of horizontal coverage.
Therefore, it is essential to choose the perfect lens for your
purposes and camera.
Selecting the camera lens is an important part of choosing a
digital camera because by simply changing the lens, the
potential image will change. Understanding all about camera lens
will help you get a good shot. They can be categorized as fixed
focal length lens, retractable zoom lens, fixed zoom lens, and
interchangeable lens.
A digital SLR provides you with the most
flexibility for a range of shooting situations, with the best
quality of optics, and is suitable for the serious amateur or
professional. If you want to upgrade the lens quality, you do
not have to buy a new camera. The downside is that it can be
quite expensive, and the lenses can be big and heavy.
The focal length can be different for the same lens mounted
on a film camera, which is very confusing to those who do not
know much about them. A digital SLR with interchangeable lens
allows you to detach the whole lens from the camera and replace
it with a different compatibility. If you own several lens for a
traditional film camera, you can look for a compatible digital
SLR body.
The fixed focal length lens is best for novice photographers
or those with a low budget. If you can afford it, upgrade to an
auto focus lens, with selectable macro or landscape focus modes.
But the focal length lens are very easy to use, and come in a
compact design while offering a wide-angle view, suitable for
landscapes and group photos. However, they usually produce the
lowest optical quality. They do not usually accept converters
and cannot zoom onto distant objects.
Retractable zoom lens extends from the body of the lens when
the camera is switched on, and retracts when it is switched off.
They are suitable if we like taking snapshots, have a limited
budget, and are not sure about the type of photos you will be
shooting.
Retractable zoom lenses allow a very compact camera design
and protect the lens with a built-in cover. They offer a zoom
range that is usually limited to a magnification of 2X or 3X.
They do not support lens filters and converters. Lens extension
prolongs the start-up time of the camera and there are limited
manual focus controls.
.jpg)
Fixed zoom lenses are fixed on to the body of the camera and
do not retract when we switch the camera off. They are suitable
if we are a serious amateur or business user and are not sure
about the type of pictures we will be shooting. Fixed zoom
lenses usually accept converters, filters, and flash rings.
Lens converters allow close-up, wide angle and telephoto
photography. They have a zoom range with a magnification of up
to 12X. They offer more precise zoom and manual focus control,
through rings on the lens, instead of buttons. They usually
offer controls that are more advanced. However, the controls may
be more complicated than we want and the camera is usually
bulkier than one with retractable lenses.
When taking a photo, the first thing to do is choose the
subject for the picture. It can be a landscape, an animal, a
child, a member of the family, a still life, etc. If the
photographer desires to bring the subject closer, choose a
telephoto lens - a lens with a focal length greater tan 55mm. If
the photograph needs to be broadened, the selection of a
wide-angle lens is chosen, a focal length of less, with 40mm.
When a regular lens is used, with a focal length of 40 to 55
mm, if offers the maximum aperture range for a wider variety of
lighting conditions. If money is not a problem, go for a zoom
lens. It reduces expenses and increases flexibility, with only
one lens.
::
Memory cards are the digital 'film' of today, read what not
to do on the next page.
.jpg)
