Sunday, April 26, 2009

Role Of Photojournalism

Features Of Zoom Lenses


by Savel Benaya


If you are a photographer or just someone that loves taking pictures using your camera, specifically the single-lens reflex (SLR) camera, you must know what zooms are for. Zoom lenses are added to your basic camera unit to be able to focus on a subject correctly. It is similar to filters that you also add on your camera for specific special effects.


During the past, you would see a photographer carrying his huge camera case which contained about half a dozen different lenses. Each of these lenses has a fixed focal length and can only be used for a certain type of focus shot. If the photographer wants to take a shot on something from a different angle, he would need to change lenses. That takes a lot of time and possible loss of the good view for the shot.


Having all these lenses and carrying them every time you have a shoot can be a big burden, not to mention, expensive. Thanks to our ever improving technology, zoom lenses were introduced. With zoom lenses, you can have a single lens that covers the same range that three or more fixed focal length lenses. This definitely lets the photographer change angle or focus instantaneously as compared to the old lenses.


Mid-range zoom lenses are versatile since they can cover normal, wide-angle and telephoto focal lengths with just a single lens. Telephoto zoom lenses are great for portraits, scenic, travel, candid and sports photos. Long zooms are useful for wildlife and sports photography.

Features of Zoom Lenses


Here are just some of the features of most zoom lenses available:


1. Macro focusing. This feature allows the lens to focus at a close range. To determine how close a lens is able to focus, a reproduction ratio is specified in the lens. A 1:4 reproduction ratio means that a lens can focus an object such that if the diameter of the object is 4 inches, it will measure just 1 inch in the picture itself.


2. One-touch zoom control. Most of the zoom lenses have just a single ring that controls the focus and zoom at the same time.


3. Lens aperture. There are zoom lenses that have only one maximum aperture, while others have two, for example f2.8-4.0. The f-number changes as the zoom changes.


Tips in buying zoom lenses


If you are planning to buy a zoom lens, the first thing you have to consider is the focal length range. For you to know what correct focal length range to buy, you must identify your purpose for the lens. If you think you will use it mostly for travel and vacations, a mid-range zoom would suffice. However, if you are planning to use it for sports and portraits, a telephoto zoom is a better choice.


The size and weight of the lens is also a consideration. In general, a bigger and heavier lens is usually faster. One that has wide zooming range can also be larger.


Lens speed is important if you are intending to use the lens for indoor photography. A faster lens allows more light which makes it easier to shoot in subdued lighting.


If you are using a lot of filters, it is best to consider the size of the zoom so it can accommodate as much filter. If you want close-up photos, you must also consider the specifications of the camera with regard to macro focusing. If you are after flexibility, it is best to have a zoom with continuous macro focusing than a limited one.


Of course, just like any other product, price is also a consideration. The better the features of the zoom lens, the more expensive they will be.


Zoom lenses are really a good investment if you are thinking of making photography a business. Even if you don’t, and you are just someone who loves taking pictures, having zoom lenses is still a good choice. You can take great shots at different angles and distances.


So if you are thinking of getting one, decide first on how you intend to use the lens so you can make the right choice. As you become more and more into this hobby or profession, then you can buy different types of zooms. Carrying just one or two zoom lenses is not a bad idea.

Sunday, April 5, 2009

Wide Angle Lens

The Best Time To Choose A Wide Angle Lens

By Savel Benaya


When is the best time to choose a wide angle lens, and how does one choose the appropriate wide angle lens for a particular shot?

First things first, the best time for a wide angle lens is to be used is when you are planning to take a beautiful shot of a landscape.

Another important aspect of landscape photography is the selection of the appropriate

light as well as the perfect location of the landscape shot. As much as

possible, and depending on what it is being shot, the selection of the appropriate day to catch that landscape picture perfect landscape view is everything.

Lights, location and action

When the location has finally been chosen for the wide angle lens shot, try to notice the light effects visible on the area that you plan to shoot in over a whole twenty four hour day. This ensures that you know how the lights play over the range of mountain, sand or seas. This also helps you plan just how it is you are to go about taking that shot, when and how.

When you finally know, it is therefore time to be a little bit creative. You may include elements in your picture’s foreground in order to have an additional scale and depth to your pictures. Also, feel free to look around from other points in the area where you think the shot could just as well be taken. This may add a little bit of interest to the final picture. Also consider taking a variety of levels and positions.

Time is always of the essence

Believe it or not, in order to avoid any shadows that may appear harsh on the picture, the best time to shoot is early during the morning as well as late in the golden afternoon.

During this time, take your camera out and set it up using a tripod. Then, take a reading of any area of the shot using a light-meter. Once the appropriate measurements have been taken, adjust the speed of the shutter and the aperture.

After all these, all you need to do is to press the release button and take a beautiful picture.

Make use of natural effects

If there are any natural creations occupying your shot, try to use a backlight or side lighting that provides the leaves, – for example – grass, water or smoke an appearance that these seem to be translucent, almost ethereal.

Pictures of a beautiful sunset are best taken just when the sun has gently touched the horizon and immediately a maximum of five – count them - five short minutes just after the sun has finally set.

It is best that you use or position yourself to a geographically high point.

A filtered polarizer may also be used in order to heighten the sky’s color or tone, thus delivering a picture befitting a postcard.


A wide angle lens helps a lot in increasing the picture’s scope.

Do not forget to relax. This prevents the camera from unnecessarily shaking and helping you focus on the subject more than anything else.

Supply yourself with much needed supplies

Since landscape photos are usually taken far from the city and well into the country, it is best that you pack up a host of equipments that enables you to take pictures even during temporary obstacles. A flashlight always comes in handy, bottled water is another (to keep the photographer replenished and not thirsty), as well as a lot of extra rolls of film. This is one equipment that photographers generally can't do without.

Basically, a wide angle lens has a focal length that measures less than forty millimeters. Be aware as well as be wary that the length of the lens changes how an image is seen.

All in all, determining the best lens to use for a particular shot requires a lot of patience, skill and practice. The art of mastering landscape photography doesn't have to be difficult. And the best lens to use for such kind of photography is a wide-angle lens. Getting that that shot right takes not only skill but the strength, stamina and endurance to get to where the location of the landscape is and the energy – upon reaching that location – to get the job done. And when that moment arrives, the job has only just begun.