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Sudut lensa ini sangat lebar , yang dirancang khusus untuk digunakan dengan Nikon's DX-format, menyediakan memperbesar sudut pandang lebar yang serbaguna.
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Source : http://www.nikon.co.id
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Sudut lensa ini sangat lebar , yang dirancang khusus untuk digunakan dengan Nikon's DX-format, menyediakan memperbesar sudut pandang lebar yang serbaguna.
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f/1.8 DX-format NIKKOR Lensa ringan dan sempurna untuk kondisi cahaya rendah, perjalanan, lingkungan dan potret fotografi.
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| Source : http://www.nikon.co.id | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sangat ideal untuk akitivitas fotografi diperjalanan dan lingkungan dalam berbagai kondisi, dengan rumus hebat optik ultra-cepat f/1.4 maksimum kecepatan rana.
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Panoramic photography refers to the area of photography dedicated to taking pictures with a wide field of view or a wide aspect ratio (i.e., a longer horizontal reach than vertical height). Landscapes and cityscapes are the most common subjects for panoramic pictures. Theoretically, panoramic photography seeks to capture images within a greater field of view than the human eye can take in. While a human eye can take in only 70 degrees to 160 degrees of a given scene, a panoramic shot generally includes 180 degrees of a field of view.
However, while this is a more traditional definition, simpler explanations define panoramic photography as pictures that present a panorama, or a comprehensive, unbroken view of a scene.
Panoramic Pictures History
As soon as the daguerreotype entered the history of photography, so too did the concept of panoramic photography. George Barnard was one of the earliest panoramic photographers, taking pictures of the Union Army during the American Civil War (1860s).
Panoramic Lens
Photographers taking panoramic shots use a special panoramic lens with short or full rotation of the camera’s lens to capture a scene. By using either rotation method, the photographer can capture the effect of the fisheye lens without the added distortion. While the fixed-focal lens can also produce panoramic shots, it generates lower quality pictures than either rotation lens.
A short rotation panoramic lens that requires a focus distance of at least 30 feet has poorer focusing ability than complete rotation lenses. Because short rotation panoramic lenses have smaller apertures than their full-rotation counterparts, they are ineffective at taking pictures in low-light conditions. Consequently, short rotation lenses are best used in outdoor photography to take landscape shots or pictures of the sky.
In contrast, the full rotation lens rotates 360 degrees while slowly pulling the film along through the camera. With slower exposure times, the camera can effectively capture an entire plane from edge to edge. As a result, the full rotation panoramic lens has long been used to photograph athletic teams and other large groups.
Keep in mind that flashes cannot be used with either lens when taking panoramic shots, as the lens is in motion. This means that lighting must be carefully considered when taking panoramic shots. Similarly, the motion of panoramic lenses means that panoramic pictures may turn out blurry. To avoid fuzziness, a photographer should consider using a tripod, unless the photographer has a very steady hand.
Another feature unique to both types of panoramic lenses is that the resulting pictures may have a “bowed” appearance to the horizon, unless the horizon is carefully centered. While most photographers prefer to avoid distorted curves when taking panoramic shots, this effect is sometimes intentionally sought in panoramic pictures for artistic effect.
Fixed Panoramic Lens
A fixed panoramic lens is another camera accessory available to photographers. Cameras containing a fixed panoramic lens are characteristically long and rectangular. The quality of panoramic pictures taken with a fixed lens varies widely, depending on the quality of the camera. While cheaper disposable panoramic cameras with fixed lenses produce mediocre pictures, the higher quality cameras render high quality photos.
A fixed panoramic lens has one advantage over the rotational lenses. Because the entire panorama is exposed at once, the photographer can use flash. This means that panoramic shots can be taken in darker conditions. Similarly, the immobility of the fixed panoramic lens means that the resulting pictures will not be prone to the distorted curve that can plague pictures taken with rotational lenses. As a result, fixed panoramic lenses are well-suited for talking panoramic shots of architecture.
Panoramic Pictures and Film
Panoramic pictures take up more space on a roll of film than normal-sized pictures. Panoramic picture size has to be taken into account or the photographer may run out of film. On average, 18 panoramic pictures can be taken on a roll of 24-exposure film.
Taking Panoramic Shots with Digital Cameras
Digital cameras have changed how many photographers take panoramic pictures. With a digital camera, a series of individual pictures are “stitched’ or “segmented” together using an image editor that produces a panorama.
Taking panoramic shots with a digital camera takes some practice. Professionals recommend using a tripod to prevent subtle changes in the height of the camera as the pictures are taken. Each picture in the series should overlap with or “connect to” the picture before it.
Digital panoramic pictures work best if the areas of overlap include obvious landmarks. This helps the imaging software stitch the photos together seamlessly. Try to avoid placing overlap in areas without obvious landmarks. With practice, digital panoramic pictures can turn out perfectly seamless!
360-Degree Panoramic Pictures
A skilled panoramic photographer can even take a 360 degree panoramic picture, often referred to as VR photography (virtual reality photography), that editing software stitches together to reproduce a scene from all directions. Special image viewing programs allow the user to rotate the image using the mouse, as if the viewer were turning in a circle to see the entire scene. For examples of panoramic pictures, check out realtors’ web sites. They often show panoramas of views from a house and many of the main interior rooms, as well as the front and back views of the house itself.
Copyright : http://www.photography.com
No matter how experienced you are as a photographer, learning new photography techniques can only improve your pictures. Taking a new approach to standard concepts such as lighting and exposure, or experimenting with an entirely new concept will add flavor and dynamism to what would ordinarily be a “common” shot.
Techniques for Lighting and Exposure
When setting up a shot, note the amount and type of light that embraces the scene. If your subject is fully illuminated with direct light (from either the sun or a bulb), you should limit the amount of light that enters the camera’s lens to prevent the film from becoming overexposed, or turning out too bright. With a faster film speed, the film requires less time to capture the image with the given amount of light. (Experts recommend using faster film speed for brightly lit subjects).
Similarly, a photographer may use filters or a shading device to reduce the amount of light in the scene.
Poorly lit conditions require either additional lighting or a slower film speed. Such conditions include scenes lit with ambient lighting, such as the moon, or backlighting. In these scenes, the photographer has to decide whether he wishes the low light to be a part of the resulting picture’s mood or whether he wants to capture the subject as is.
If lighting is important to the shot, then the photographer should use a slower film speed. Slower film allows more light to enter the camera lens, preventing the picture from being underexposed and turning out too dark. Alternatively, the photographer may use lamps to more fully illuminate the subject.
Techniques for Composition
When composing a shot, professional photographers have some rules that aid them in properly framing their subject. The most common compositional technique is the rule of thirds, also known as the “the rule of three.”
According to this rule, a camera’s frame can be divided into three equal horizontal spaces (with two horizontal lines) and three vertical spaces (with two vertical lines). These four imaginary lines intersect, forming a box in the center of the frame.
The photographer can center his subject within this central box or locate the subject at any one of the four theoretical corners.
Using this technique for composition, the photographer can add dimension to his shot. While more dynamic shots put the image at one of the corners (known as “power points”), the blunt, hard-hitting shots frame the subject in the center.
Other Tips: Take Advantage of Camera Accessories!
Depending on your subject, a number of different camera accessories can enhance your photographs. If you’re taking nature or glamour shots, try using a tripod to make your shots steadier.
No matter what style of photography you’re practicing, you might experiment with a variety of camera lenses. Play around with a telephoto, wide angle, macro or fisheye lens.
The possibilities for photography experimentation are endless. The only way for you to truly improve your skill as a photographer is to seek out and experiment with new techniques.
Copyright : http://www.photography.com
From: Photography Field Guide: Digital Media and Ultimate Field Guide to Photography
By: Rob Sheppard & Bob Martin
August 2007
Digital cameras today offer superb image quality that competes directly with film.
These cameras look and act like traditional cameras with a few extra features. Tricky camera designs are quickly leaving the marketplace because photographers want to take pictures and not be bogged down by hard-to-use technology.
Many things about digital cameras are identical to film cameras, a few things are slightly tweaked from film expectations, and a number of features are unique to digital photography. Some of the big differences can actually help you take better pictures than you ever did with a film camera.
For quality results from any camera, the basics of photography still apply no matter how an image is captured. A tripod is always important if slow shutter speeds are needed and big telephoto lenses are used. Fast shutter speeds remain a key way to stop action, and f-stops continue to affect depth of field. The important parts of a scene still need to have the focus centered on them, and dramatic light always helps make for dramatic photos.
The "digital" in digital camera has caused even experienced photographers to worry that this new technology will be difficult to master. But consider this: No beginner ever picked up a camera and knew what all the controls did. For the serious photographer, f-stops and shutter speeds were definitely not instinctive.
Types of Cameras
Digital cameras come in a variety of forms, from point-and-shoot pocket cameras to advanced digital SLRs. There is no right or wrong type, though a specific one may be best for you and your photography.
Simple point-and-shoot digital cameras can give surprising quality when they have the right lenses and sensors. Because they are totally automatic in focus and exposure, they just have to be pointed at a subject and clicked. They have limited capabilities for controlling the image, although even very inexpensive cameras often have white balance controls. Some are exceptionally compact, able to fit easily into a shirt pocket, making them ideal cameras to keep at hand so you won't miss a great photo opportunity.
Advanced point-and-shoot cameras are similar in that they mostly rely on automatic controls; however, this group tends to add special features to make the cameras a little more flexible. Such features include exposure compensation, more white balance controls, limited manual settings, and more. Still relatively inexpensive, these cameras can be a good introduction to digital and are perfect for the families of serious photographers.
Interchangeable-lens, digital SLRs offer all the controls of a 35mm SLR, including lenses that give you a wealth of focal-length possibilities. These cameras are definitely bigger than the other digital cameras. They include complete and extensive photographic controls, the best in image-sensor and processing technology, high levels of noise control, and more. The LCD panel on the back of an SLR can be used only for reviewing images, since the sensor cannot provide "live" images due to the mirror design.
Shoot It Right From the Start
The way to get the best photos from a digital camera is to do it right from the start. Yet there is an idea that one doesn't need to devote much effort when you have the computer to "help." This idea has sometimes reached almost surreal proportions. A couple of years ago, a digital photography article in a major news magazine said software was available that would automatically transform amateurs' photos into images that would rival the best of pros. That software never existed, nor will it, because good photography has always been about art and craft; about understanding the tools of the craft and using them well; and about perception and the ability to capture an image that catches an audience's attention and communicates well.
Just remember that digital photography is still photography.
The Basics
The most common mistake people make is camera shake. When you move the camera inadvertently at the time you press the shutter, you risk the chance of blurring your image or reducing the sharpness of the image. Keep it steady!
Exposure
Most point-and-shoot cameras have a simple exposure override facility, normally allowing you to overexpose or underexpose your picture. So if the subject is predominantly dark, experiment by overexposing to compensate. If the subject is predominantly light, then underexposure is the way to go. Try taking a test picture, look at it on the screen on the back of your camera, check the histogram, and adjust your exposure compensation. Don't be afraid to shoot four or five versions, as the LCD screen is not always accurate. You can delete the bad pictures later.
Composition
A very basic rule of composition is known as the rule of thirds, or the tic-tac-toe rule. Imagine your viewfinder or LCD monitor divided into nine equal-size squares, like a tic-tac-toe grid. Compose your picture with your subject center-positioned at one of the four intersecting points. This should help you compose more aesthetic portraits.
Zoom
Your point-and-shoot camera will probably have an autofocus zoom lens. You will discover that the ability to zoom in on your subject is fantastic. Get bold. Use your zoom lens and compose your picture with the subject filling your frame. To start with, I'd be surprised if you don't get a lot of pictures that are small in the frame. When you look through the viewfinder, look at the whole picture frame and how big the subject is in your picture, not just into the eyes of the person you're photographing.
Changing the Point of View
Another thing to consider when taking your picture is your point of view. A picture can be more interesting when taken from an unusual angle. Don't be afraid to lie down and look up at your subject, a particularly dynamic approach when photographing pets or children and also less threatening to your subject. Equally, you could try climbing up to a higher viewpoint and looking down on your subject. Better yet, try both and then delete the one you like less.
Transferring Digital Images
Digital cameras today come with some way of transferring the photos to the computer. This usually involves some sort of cable, although some cameras are using infrared and other wireless technologies. Direct connection may not be the best way for photographers to get photos onto the computer's hard drive, however. Many people find a card reader much more convenient.
Keys to Working in the Digital Darkroom
Many photographers have tried to work with image-processing programs such as Adobe Photoshop and found the whole process difficult, intimidating, and tedious. One big reason this occurs is that much of the instruction in books and classes takes the wrong approach for photographers: It dwells on the software and not the photography.
The photo "rules." This is an important thing to remember. When the software is "in charge," the focus is not on the image; it is on learning and memorizing all the functions of the program. Many photographers have sat through classes that taught them about such things as selections and layers long before they had any idea why they might want to have such knowledge. This was simply because the instructor thought these things were key elements of Photoshop.
As a photographer, you know your photos and what you want them to do. Sure you might not know everything you can do with an image in the program, but that is less important than why you took the photo. Only you can know this, and your photographic intent will guide you, even through Photoshop, on a sure-and-steady, craft-driven journey that is not obsessed with technology.
Experimenting without fear is another key idea for using the digital darkroom. Often, photographers have had to pay a price for experimenting, and many have gotten cautious and brought that caution with them into the digital darkroom. Just remember that there is little you can do to an image in the computer that can't be undone. Let yourself go, and don't be afraid to experiment.
Copyright : http://photography.nationalgeographic.com