Digital SLR Lens Reviews / Slr camera lens

The specifications and technical details that are included in the write-ups on a megapixel SLR digital camera can be staggering. As you read through the plethora of ratings and reviews about digital cameras, you may find that you are more confused than you were when you started. Don’t get discouraged.

You just need to spend a little time learning what to look for, and you’ll soon be on your way to taking great digital pictures.

What Is It?

So just what is a megapixel SLR digital camera? How does the camera stack up against other types of digital cameras? Why you would want to purchase this particular type of digital camera over any other type. Those are all important questions to ask yourself.

In order to buy such a camera, it might be helpful if you had a working definition of a megapixel. The megapixel is the resolution of the camera or how may pixels of light are in a given space.

The more pixels there are, the sharper and clearer the image. Having said that, you want to find a balance between a camera that has enough pixels to provide you with a quality image and a camera that you can afford.

The pixels on their own aren’t really a good indicator of how good your camera could end up being. You don’t want to overdo the pixel count because too much picture quality could make your photos appear to be unnatural and over-pixelated.

Shadows, for example, could end up being more detailed than you intended because of a higher pixel rate. When you read ratings and reviews of cameras, look for sections on camera resolution and pixel rates.

Another question about the megapixel SLR digital camera is “what does the SLR stand for?” SLR simply stands for “single-lens reflex”. It is a type of camera that uses a movable mirror between the lens and the film, projecting the image through the lens on a focusing screen. Many cameras feature SLR, including the popular Nikon D70 digital SLR camera and most Canon digital cameras.

Buying the Best

Now that you know a little bit about this digital camera, you can set out to buy one. A good idea is to check out some ratings and reviews of the more popular cameras online.

Compare megapixels and resolutions between several cameras and make an informed choice before you go into the store. Buying a megapixel SLR digital camera is a good investment, but you need to be prepared before you leave home.

Author: MIKE SELVON

Digital SLR Lens Reviews

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Many more serious photographers are converting to SLR digital cameras because of the convenience that a digital camera offers. With a SLR, or single lens reflex, digital camera they can get professional quality pictures with the convenience of a digital camera. There are some SLR cameras with great digital camera reviews. Here is a look at some of the top SLR digital cameras that got a five out of five star rating.

Nikon D80

The Nikon D80 SLR digital camera offers 10.2 megapixels for startling picture clarity. It has an in camera editing feature that allows you to touch up your photos directly on the camera. It also has a 2.5″ color LCD and a pentaprism viewfinder with a built in diopter. It has 6 white balance modes and 6 flash modes. It also has an orientation sensor and an external flash mount. It includes a PictureProject CD Rom and comes with many accessories. This is a quality SLR digital camera with many extras and will run you around $900.

Canon EOS 40D

This SLR digital camera features 10.1 megapixels. It has a metal lens mount to accommodate additional lenses. It has a 3″ color LCD with a 7 level brightness control as well as a viewfinder with an adjustable diopter. The Canon EOS 40D SLR digital camera has 4.8x optical zoom. It has 9 white balance modes and 4 flash modes. It features an external flash mount and a focus range of 2.8′-5.6′. It is PictBridge compatible and comes with EOS Digital Solution software. There are so many features and accessories with this camera it is impossible to list them all. This is a highly rated SLR digital camera, and worth all of the $1,500 it retails for.

Olympus EVOLT

The Olympus EVOLT is a wonderful SLR digital camera that has 10 megapixels coupled with a Supersonic Wave Filter that eliminates dust and debris from your shot so that you get a clear image every time. It comes with two different lenses and is compatible with many more. It has a 2.5″ color LCD as well as a separate viewfinder. There are over 16 scene modes and seven exposure modes. There are seven different white balance modes and a variety of flash settings. You can even choose your own custom color effects for each shot. It is PictBridge compatible and comes with many accessories. This is a great deal on a SLR digital camera for only $750.
Author: Laurie Lindsay Author Ranking Bronze

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Photography is one of the most popular hobbies of many people around the world. Almost every individual with a camera creates his own world of pictures, least bothering the types of camera he is using. Most of the digital camera users have little or no idea on the configuration of the gadgets they have. Some people purchase digital cameras without caring to figure out what type of digital camera will best serve their purpose.

However, professional photographers know their needs pretty well in this regard. But it is wise for anyone to know the type of digital cameras before investing in one of them. Digital camera has many advanced features that the traditional cameras lack. But if you go through the minute details of each type of digital cameras you will find them differing from each other in their features and functionality.

Compact digital camera:

Generally, a regular sized digital camera is smaller in size. But if you are opting for a compact digital camera you will find them as portable as to keep them in your pocket or small purse. They are also available with LCD monitors with sensor image stabilization, dust reduction, wireless remote controller and image resolution quality. The LCD monitor shows the view of the picture to be taken and hence, helps capturing perfect images.

The image sensor tends to catch dirt and debris. But the dust reduction system removes dirt from it. The image stabilization mode of the digital camera sharpens the image by eliminating camera shake. The portable and lightweight digital camera with multiple features varies in its price depending on its features.

Point and Shoot digital camera:

Digital cameras of this category do not need a lot of creativity on the part of the user and therefore, are good for any user. It is easy to use and have many controls that don`t need much of your involvement while taking the snaps. The powerful camera has compositional technology which can be wonderfully used not only for photography but also for video taping, paining and some of the other visual media.

Though the camera has its limitations like lack of flexibility, you still can capture your memories with great pictures if you are smart to use the compositional technology. It is the best digital camera for the beginners. As any other digital camera they are also small light weight and the picture can be viewed on the screen before taking it.

Digital SLR camera:

A digital SLR camera is a digital camera with single lens reflex system. It has got a small mirror between the lens and camera films. The technology of this high-end camera creates more image control and focusing for the photographer. Also, this type of digital camera is developed with mega pixels. The number of pixels present is responsible for the clarity of picture.

Advanced digital camera:

The advanced digital cameras have got some advantages over the basic digital cameras. This type of digital camera is available with fully automatic, manual or semi-automatic control. The astounding digital camera captures amazing images with ease of handling. The extremely simple interface allows the user easily understand its functionality. The advanced LCD screen, megapixels and optical zoom makes the advanced digital camera feasible for professional and personal use.

Before taking your digital camera you can go through some reviews that give clear picture of every type of camera, its feature and functionality. Ask some of the digital camera owners about the pros and cons of the models they own. Try out many models of digital cameras before you settle down for the right digital camera for your purpose. Happy Buying!!!
Author: Roberto Sedycias Author Ranking Gold |

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Normally, the cameras which are not loaded with the SLR feature will not give the photographers the exact view of the subject which actually appears in the final photograph. But, the SLR feature helps the photographers view exactly what will be captured by the film or the digital imaging system. Before the introduction of the SLR camera which stands for single lens reflex all the classical cameras had two optical light paths. This optical light path helps capture photographs well when the subject is at a middle or longer distance. But, when it comes to close-up shot its efficiency goes low. Moreover, the cameras which are not equipped with SLR feature perform very poorly while capturing photos in low light and while using low speed films.

Till the 90s, the cameras equipped with the SLR feature were the most advanced cameras. But, the recent developments have left even the digital SLR cameras far behind. Today, the latest compact digital cameras are equipped with LCD. This helps view exactly what CCD captures. Today, such digital cameras are available at flexible prices in the market. Yet, the SLR cameras are very popular among the professionals and the amateurs because of its clarity and shadow details. The photographers can manually adjust the focus in the SLR cameras and they can also be automatically focused by the auto focus feature. It also supports matter focusing screen to diffuse the light that may spoil a photograph. Thus, these features help get exact viewing, focusing and composition.

The digital SLR cameras have a larger sensor in comparison to many other brands. This helps capture quality photographs even in low light. When the sensitivity of the camera is larger it helps increase the quality of the captured photographs. The sensitivity of the SLR camera is pretty large. The range of the digital SLR is 100 –1600 and it depicts the sensitivity of the digital SLR.

Moreover, the quality of the SLR cameras has further increased over the years. Now, this camera functions faster. The time this camera takes to capture the subject right after the click of the shutter is incredibly faster. But, typical cameras take about 0.5 seconds to complete this task. It is a pretty longer time in comparison to that of the digital SLR. Definitely, one cannot ignore the capacity of the battery as you consider the other features of the SLR digital cameras. With the capacity of the digital SLR you can capture approaching 2000 shots. Moreover, you can interchange the lenses of the digital SLR cameras.

Every thing has its own disadvantages and the digital SLR is no exception. In comparison to typical cameras the digital SLR’s weight and size are more. Since, this camera does not possess LCD screen it is not possible to preview the images in this widget. To view the images in this camera it requires additional accessory. Moreover, the prises of the lenses of the SLR camera may be more than that of the camera itself.

The digital SLR cameras help the users know immediately whether the photographs they have taken are of good quality. So, it helps users take better photographs. In monetary terms as well this camera proves to be profitable as the users need not purchase rolls of films. They can just use memory cards which are reusable and can support hundreds of photographs. Moreover, the battery of this camera is rechargeable and it lasts for years if handled properly.

Author: Jonson William

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Your digital camera will last longer if you take steps to take care of it from the beginning. Your lens is your digital camera’s eye to the world. It is a very sensitive part of your camera. Your digital camera will last longer and take better photos if your keep your lens clean.

Some preventive measures you can take are not to touch the lens with your fingers. Once the lens is scratched, you will need professional assistance to repair the damage. Your fingers can also leave oils from your skin, which are not easy to remove. When your digital camera is not in use, always put on the lens cap. This is such an easy task but it will save your lens from getting dusty or dirty. Many new point and click digital cameras have an automatic cap that closes over the lens when the camera is turned off. This is a great added feature to look for when buying a digital camera.

You need to keep the body of your digital camera clean and free of dirt and dust. Keep your camera in a case or bag when you are not using it. If the digital camera does get soiled use a soft lint free cloth to wipe it off.

Clean your lens only when necessary. A little dust won’t affect your photos. These hint may help you clean your lens.

* Before cleaning your lens, hold your digital camera upside down and use a bulb brush (a bulb blower and brush combination tool) or lens pen to get any dust off your lens. The lens pen has a moveable brush on one end with non-liquid cleaner on the other end to remove fingerprints and smears.

* Or you could use a can of compressed air to remove dirt or dust. Be careful with the compressed air by suddenly lower the temperature it can crack or damage the lens. The can of air can blow contaminates on your lens along with the air. If you decide to use the can of air instead of the bulb, hold the can straight and start blowing before you aim it at the lens. This should remove the dust from your lens.

* Now for any stuck on dirt you will need to use a lint free cleaning cloth and lens cleaning fluid. Never use a dry cloth on your lens. And never a use a napkin, paper towel, facial tissue or eyeglass tissues. These may scratch your lens. Always put the cleaning fluid on the cloth never on the digital camera. Don’t take the chance of getting the fluid under the lens. Use a light circular motion to clean your lens.

* You can also buy a microfiber cloth, which is antistatic and won’t scratch, streak or smear the surface. This microfiber cloth will only needs lens cleaning fluid for stubborn smudges.

A little care and proper tools can keep your digital camera taking photos for a long time.

Submitted By: CARL WILSON

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Digital cameras are one of the greatest inventions of modern times. We are so fortunate to have this modern convenience called Digital Photography. To be able to capture a precious moment or beautiful scene at the click of a button, is something we should not take for granted.

Many beginners find digital photography rather challenging and rightly so. Today, more and more digital cameras are being created and it seems like the more digital cameras they make, the more difficult they become to use.

I own a Canon Powershot S3 IS. I purchased this digital camera about a year ago and I still haven’t utilized all of the awesome little features this camera has to offer. Now you may not want or even need a camera with tons of features. It really depends on the type of pictures you plan on taking.

Regardless of the camera you own or are planning to own, you should have a well rounded knowledge of digital photography. I hope the following 20 tips for taking digital photography will prove to be useful in your quest for taking better photographs.

1. Know your camera. One of the biggest mistakes you can make is not taking time to learn about the features of your camera. Don’t be lazy. Read your instruction manual.

2 - When shooting sunny outdoor shots, try adjusting your white balance setting from auto to cloudy. The auto setting will make your shots appear too cold. When you change it to cloudy, it will increase the warmth of your pictures.

3 - If you are looking for superior image quality, the ability to use a variety of lenses and print large high quality photos, then considering a Digital SLR Camera.

4 - Use your flash outdoors. Sometimes, even on a sunny day outdoors, there is still a need for a flash. If the sun is directly over head or behind your subject, this can cause dark shadows to appear on the face. The flash will help lighten the subjects face.

5- Sometimes simply turning your camera and taking vertical shots can make a world of difference. Experiment more with vertical picture taking.

6 - Do not put your subjects directly in the center of your shot. Move your subject off center to inject more life into your photos.

7 - Learn how to hold your digital camera. One of the most common problems beginners face is the shaking of the camera because they are not holding it properly. Of course, the best way to avoid shaking the camera is to use a tripod. If you don’t have a tripod, then you should be holding your camera with two hands. Put one hand on the right hand side of your camera where you actually snap the photo and the other hand will support the weight of your camera. Depending on the camera, your left hand will either be positioned on the bottom or around your lens.

8 - Learn about the “Rule of Thirds”. This is a well known principle of photographic composition that every beginner should become familiar with. Do a search online and you will find many tutorials on this subject.

9 - Look at other photographers work. Just spending time studying the work of other photographers can provide loads of inspiration.

10 - Join online photography communities. Get active and ask questions.

11 - Do not compare your photography to anyone else.

12 - Do not copy the work of other photographers. Try and develop your own unique style.

13 - Do not leave your batteries in your camera if you don’t plan on using your camera for long periods of time. Some batteries run the risk of leaking and this can damage your camera.

14 - Subscribe to a good photography magazine. Read books on photography.

15 - Find experienced photographers to go out on shoots with.

16 - Post your photographs in online forums. Learn to accept criticism.

17 - Try taking your pictures in RAW format. RAW is a powerful option available in today’s digital cameras where no in-camera processing takes place. This allows you to do all processing using your favorite image editing software.

18 - Don’t buy the most expensive photography equipment right away. Practice and learn about photography using cheaper equipment first. After you have been taking pictures for a while, you will then know what kind of equipment you will need.

19 - Invest in a tripod. Some of us have very shaky hands. If you can’t stop the shakes, then get a tripod. It will make a world of difference.

20 - If you are not able to carry your equipment with you everywhere, make sure you have a note pad handy. This way if you find a nice shot, you can write it down and visit that location at a later date.

Author: Ralph Serpe

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Most of the digital cameras have auto-focusing which enables even a kid to take decent photography. The LCD viewer helps in getting the right composition of the image. The preview of the images clicked allows keeping the best one from the lot and deleting the rest thus saving on space for more clicks.

Digital cameras don’t come cheap. With the kind of features and utility levels of a digital camera a good one costs above ten thousand. Good brands included Canon digital camera, Nikon digital camera, Sony digital camera etc. A digital SLR (Single Lens Reflex) would start from thirty thousand and run into lakhs. Digital SLR’s are hi-end cameras with professional features and good image quality. When one spends so much on a good quality digital camera taking care of it is also very important. All parts of the camera should be taken care of and there are equipments available in the market for the same. These equipments are one time moderate investment in keeping your expensive camera in good condition.

Camera parts like the lens, viewfinder and the LCD screen are the most essential elements of a camera. These parts should be regularly cleaned and taken care of. There is a blower available in the market which helps to dust off the dirt on the lens. One should never touch the lens, the viewfinder or the LCD display with fingers. The blower helps in removing the dirt and a lens cleaning solution helps in removing the sticky particles on the lens or viewfinder. The cameras lens cover should be put on when not in use this is the best way to protect your cameras eyes. Once the lens and viewfinder are cleaned the camera assures clear pictures and good view of the image.

Digital camera batteries should be taken out when not in use. If you intend to store your camera for a long time the batteries should be removed and on the next usage they should be charged and then used. Batteries discharge over a period of time and using them without recharging or storing them may hamper your camera and its performance. Also the camera should be stored in a cool dry place. Keeping your expensive Canon digital camera inside your car in summers will hamper the camera and you will have to bear a heavy price for your carelessness. Camera accessories like the extendable memory card should also be taken care off. The card should not be taken out while transferring pictures and should be stored properly when not in use. This enables good performance of the card otherwise it could be corrupted and will turn useless. Thus taking mediocre care of your digital camera and spending a little amount on its care would help in maintaining and making your camera viable for years together.

— digital SLR lens

Author: Monty Alexander

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hotography is undoubtedly one of the most important inventions in history — it has truly transformed how people conceive of the world. Now we can “see” all sorts of things that are actually many miles — and years — away from us. Photography lets us capture moments in time and preserve them for years to come.

The basic technology that makes all of this possible is fairly simple. A still film camera is made of three basic elements: an optical element (the lens), a chemical element (the film) and a mechanical element (the camera body itself). As we’ll see, the only trick to photography is calibrating and combining these elements in such a way that they record a crisp, recognizable image.

There are many different ways of bringing everything together. In this article, we’ll look at a manual single-lens-reflex (SLR) camera. This is a camera where the photographer sees exactly the same image that is exposed to the film and can adjust everything by turning dials and clicking buttons. Since it doesn’t need any electricity to take a picture, a manual SLR camera provides an excellent illustration of the fundamental processes of photography.

The optical component of the camera is the lens. At its simplest, a lens is just a curved piece of glass or plastic. Its job is to take the beams of light bouncing off of an object and redirect them so they come together to form a real image — an image that looks just like the scene in front of the lens.

But how can a piece of glass do this? The process is actually very simple. As light travels from one medium to another, it changes speed. Light travels more quickly through air than it does through glass, so a lens slows it down.

When light waves enter a piece of glass at an angle, one part of the wave will reach the glass before another and so will start slowing down first. This is something like pushing a shopping cart from pavement to grass, at an angle. The right wheel hits the grass first and so slows down while the left wheel is still on the pavement. Because the left wheel is briefly moving more quickly than the right wheel, the shopping cart turns to the right as it moves onto the gras. — Digital slr lens

The effect on light is the same — as it enters the glass at an angle, it bends in one direction. It bends again when it exits the glass because parts of the light wave enter the air and speed up before other parts of the wave. In a standard converging, or convex lens, one or both sides of the glass curves out. This means rays of light passing through will bend toward the center of the lens on entry. In a double convex lens, such as a magnifying glass, the light will bend when it exits as well as when it enters.

This effectively reverses the path of light from an object. A light source — say a candle — emits light in all directions. The rays of light all start at the same point — the candle’s flame — and then are constantly diverging. A converging lens takes those rays and redirects them so they are all converging back to one point. At the point where the rays converge, you get a real image of the candle. In the next couple of sections, we’ll look at some of the variables that determine how this real image is formed.

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