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Thursday, May 26, 2011

Knowing Which Digital Slr Camera Lens is Right for You?

How to

When shopping for a Digital Slr Camera citizen often overlook or skimp on the Camera's Lenses. Camera Lenses serve as the Digital Slr Cameras "eye," the lens determines what and how your camera will see your field and how well that view is transmitted to the camera's sensor chip for recording. The way I like to look at camera lenses is as painter's brushes, broad strokes, medium stokes, all purpose brushes, and small information brushes. There is a lot to learn about Digital Slr camera lenses and this record will serve as a basic shape to insight them. The following sections justify the basic types of Digital Slr camera lenses, how they work, and how to elect them.


Focal Length

Zoom Lens

On a digital Slr camera the focal distance of the lenses measures the distance between the lens and the image sensor, measured in millimeters. Lenses can be classified into subgroups like prime, macro, wide angle, normal, telePhoto, and zoom lenses. They are also rated in regards to f-stop or speed an example would be a F2.0 50mm lens or a 1.4F 80mm lens. We will justify this later in this article.

How to Knowing Which Digital Slr Camera Lens is Right for You?

Prime Lenses:

Prime lenses are fixed focal distance lenses like a 50mm 1.4f lens. To zoom with these types of lenses you need to use your feet and to get closer or farther away from the subject. Traditionally prime lenses are sharper and faster then zoom lenses. If you are on a budget you can pick up some fabulous used older prime lenses off eBay or your local camera store.

Macro Lenses:

Macro Lenses are your information brushes they enable you to get up close and personal with your subject. These types of lenses are used for ultimate close ups on small objects like daisies, pennies, and food but not limited to these types of subjects. Examples of macro lenses are 50mm and 100mm macros. These lenses are also great for selective focus types of Photos.

Wide-angle Lenses:

Wide-angle lenses are your broad stroke brushes; these types of lenses have short focal lengths. The short focal distance has the optic effect of "pushing" the field away from you and manufacture it appear smaller. The charm of wide-angle lenses is you can be relatively close to your field and fit a broad stroke of the background into the scene.

One problem with wide-angle lenses is known as convergence, a distortion that makes vertical structures appear to lean toward the town of the frame. A way to check if the wide-angle lenses you are curious in has convergence is to take test pictures before buying the lens. With high capability wide angles lenses like Canon L series lenses address this convergence issue well. Examples of wide-angle lenses are 15Mm, 17mm, 24mm and 28mm lenses.

Normal Lenses:

Normal Lenses try to mimic how the human eye sees and are some of the most versatile lenses you can use. These are my all purpose brushes, and are somewhere between a wide angle and a telephoto lenses. If you buy just one lens try and buy the fastest normal lenses you can like a 50mm 1.4f lenses. Some examples of normal lenses are 35mm; 50mm, 65mm and some reconsider a 80mm a normal lens.

Telephoto Lenses:

Lenses with long focal lengths 100mm and higher are called telephoto lenses. A long focal distance seems to bring the field closer to you and increases the subject's size in the frame. Telephoto lenses also give your subjects a visible look and flatten out your subject. These lenses are my short stroke brushes.

Zoom Lenses:

Zoom lenses are extra because they can be very versatile. These types of lenses vary in their focal lengths and come in many in wide-angle, telephoto, and wide-angle to telephoto. In my bag I carry a 17mm to 35mm my wide-angle broad brush, 24mm to 70mm my medium brush, and a 80mm to 200mm my short brush. With these three lenses I get a very board range of focal lengths for any situation. All of my zooms are at least f2.8 straight through out the lenses range, which means my f-stop can stay constant while I am zooming in and out. These types of lenses are very high-priced but so get what you pay for. When shopping for a zoom lenses check out the f-stop range rating. An example is a 24mm to 300mm f3.5-f5.6 lenses meaning the bottom f-stop you can shoot is at the 24mm range of the lenses and when you zoom to 200mm the bottom you can go is f5.6. Zoom lenses can give you flexibility and versatility all in one lenses. When buying a zoom lens try and get one that is made of glass and is the fastest you can afford, you will not regret it.

Understanding what these distinct groups of lenses can do will help you make more informed decisions on what lenses to buy and what to put in your camera bag.

Knowing Which Digital Slr Camera Lens is Right for You?

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Friday, May 20, 2011

The Best Zoom Digital Camera Buying Guide



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How to

One of the most foremost features that consumers look at when buying a Digital Camera is its zoom range capability. Whether you are going to the zoo and want to get close ups of the animals, or just for personal use, zoom is one of the most foremost features. Many also want a Compact Camera with this feature, as it is easier to carry around.

There are a few advantages of a smaller sensor, in comparison to its larger counterpart, Srl's. The main advantage is that you need a smaller Lens, and you can fit a high zoom range into a small Camera which can still be carried around conveniently. In early 2000, Sony and Olympus offered a few cameras with a 10x zoom, which were a bit bulky and more expensive, were still smaller than their counterpart Slr, and had a Lens which was just as powerful. Many buyers look at these two factors, price and portability.

Zoom Lens

Superzoom cameras offer such large zoom ranges that they are approximately impossible to match with film cameras. The lenses are large, yet small sufficient to be able to have a small, Compact camera, that is suitable for users to carry around.

How to The Best Zoom Digital Camera Buying Guide

Manufacturers are continuously competitive to come out with the camera with the best zoom range. Primarily, the median was a 10x lens, but now that whole is about double. Not only are the manufacturers improving the length the lens can see, but they are improving the field of vision and width.

Seven cameras, which are probably the best Digital zoom cameras include:

Fujifilm FinePix S2000Hd

Fujifilm FinePix S8100fd

Canon Powershot Sx10 Is

Nikon Coolpix P80

Olympus Sp-565Uz

Panasonic Lumix Dmc-Fz28

Sony Cybershot Dsc-H50

These seven cameras all have a zoom range of 12x or more, and some of the highest wide angle views as well. They also all over image stabilization (either visual or mechanical), which is foremost for people who are using such a strong zoom lens. Some other foremost features that these cameras contain contain electronic viewfinder, full control when taking Photos. Generally, these cameras all look quite similar. They are not too big, and are built with a similar design. Often times, many of these cameras will actual contain the same lens as one of their counterparts. More and more digital zoom cameras are being manufactured, and with each new one, comes more superior features

The Best Zoom Digital Camera Buying Guide



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Saturday, May 14, 2011

Digital Cameras Can Also Take Panoramic Photos



Digital Photography Secretsby David Peterson Click Here!
How to

1. The choice of focal Length

Some citizen think that when you take panoramic Photos, the view should be as large as possible. So they adopt the shortest focal distance (wide-angle Lens or wide-angle zoom lens). They take it for granted that fewer pieces of mosaic pictures is then needed. In fact, this is a misunderstanding, It is easy to shoot in this way but it's painstaking when stitching. Strong perspective ensue appears due to wide-angle lens, especially the edge of the screen, legitimately distorted, hard to stitch seamlessly. Therefore, deformation should be used when shooting in small focus or telePhoto shooting, and the focal distance should not be changed during the shooting procedure.

Zoom Lens

2. Exposure Parameters

How to Digital Cameras Can Also Take Panoramic Photos

Multiple Digital Cameras now have a special panorama mode, in this mode, the Camera will automatically take panoramic pictures of the requirements by setting the exposure parameters, for Cameras with no panorama features to note the following: a, testing light by the use of average light test, exposure by Ae lock locking exposure parameters or manual exposure. The same set of panoramic Photos of the shooting can not convert the aperture, speed, Iso, resolution and other settings; b, using a fixed white balance, auto white balance may ensue in inconsistent color tone of distinct photos.

3. Shooting method

When shooting under a positive order (from left to right or from top to bottom, etc.), it is better to use the steady rotation of the tripod. Rotation axis should be vertical during rotation process. When shooting colse to or shift-by-point shooting attention is needed to be paid on the camera height and angle of the same, ordinarily flash isn't needed. The flash light causes inharmonious light tones-too light colse to and too dark far away. Between two neighboring photos the positive overlap is needed. Canon, Casio and other brands of some Digital cameras, in panoramic mode, an Lcd display provides auxiliary tips. Dramatic changes of light conditions (such as the line of clouds,)is not permissible to shot, to avoid the large phase unlikeness of exposure Between distinct pictures. The interesting objects should be avoided in the connection zone (such as vehicles and pedestrians.) Although to pick a location with an positive sign as the convergence point is conducive to self-operating software's identification, splicing, we recommend choosing the part with no positive sign, not easy to mix with the site as connection, such as Water and mountains, which is not easy to see the seams when stitching.

Digital Cameras Can Also Take Panoramic Photos



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Sunday, May 8, 2011

Factors to think When Buying a Camera Lens



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How to

Purchasing a DSlr or Digital particular Lens Reflex Camera comes with a basic kit Lens that could give decent potential pictures. But the benefit in DSlr Cameras is being able to switch lenses, depending on the type of shot you want. There are remarkable zoom lenses or macro lenses, for example.

Here are some factors to consider when buying a Digital camera lens:
The Glass
o Focal distance - It is the actual distance in-between the focal lane of the lens and the rear element, measured in millimeters (mm). This is where the light's parallel beams enter the lens converging onto a point. It determines the viewing angle of the lens. When there is a shorter focal length, the field of view becomes wider, providing more scenes for your camera to capture. When you growth the focal length, the actual field of view becomes narrower.

Zoom Lens

o Aperture - It is one of the mechanisms that operate the actual "amount of light" passing straight through the lens towards the image sensors. It is also referred as "f-stops," like f/2/8. The smaller the number, the larger the opening. This means more light enters the camera. Since it begins to fetch added light, a type of lens that allows you to open to a wider aperture also enables you to have a faster shutter speed. Such feature is requisite in low lighting conditions to fetch sharp images, especially straight through a handheld camera.

How to Factors to think When Buying a Camera Lens

o Image Stabilization - Slower shutter speed can ensue to blurry Photos when cameras are handheld. Image stabilization counteracts the shaking, allowing one to shoot distinct handheld shots amidst low lighting conditions. Canon's term for this is Is (Image Stabilization). Nikon use the term Vr (Vibration Reduction).

Zoom lenses included in a collection of DSlr kits offer focal lengths ranging from 18 to 35mm. Depending on the cropping potential of the camera, it can reach up to 55mm. This means that you can go from only a moderate "wide-angle" view towards a so-called "slight telePhoto."

If you have plans of expanding your Digital camera's features, here are some things you need to consider:
o Prime Lenses - These should possess a longer type of zoom lens or a lone focal distance in the middle of 35mm up to 85mm. Prime lenses have a great glass on them.

If you get the "fixed-length lens", there is a tendency that you will be required to move colse to when getting your shot. Of course, over a distinct time, this will already help you make great compositions. Prime lenses also possess a wider type of maximum aperture, production it easier to get sharper shots, especially under low lighting.

o Zoom Lenses - For those wishing to get action Photos, the best would be the "telephoto lens" which ranges from 100mm up to 300mm. This is due to the Dslrs crop factor. There is not much zooming needed. A good example would be Nikon D40 which has a 200mm type of telephoto lens that can turn into a 300mm one.

Factors to think When Buying a Camera Lens



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Tuesday, May 3, 2011

The Canon 15mm Fisheye Lens chronicle



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How to

The 15mm Canon Fisheye Lens is a 180 degree full frame diagonal fisheye Lens designed for Canon's full frame sensor Cameras like the 1Ds Mark Iii and the 5d Mark Ii and all earlier full frame models. The 15mm Canon is a prime Af Lens with a maximum aperture of f/2.8. Sadly, this lens has been discontinued and substituted with a newer model.

Should You Still Buy The 15mm Canon?

Zoom Lens

Until very recently, the 15mm Canon was the only Canon fisheye lens you could get, leaving Canon owners using the 1.6x and 1.3x crop Cameras out in the cold. Canon has now substituted the 15mm with the 8-15mm f/4L Fisheye Zoom Lens. As I write this it is not yet ready for sale but the 15mm Canon is still ready brand new and I presuppose once the 8-15mm zoom is released to the social you'll see more and more of the 15mm fisheye's become ready in the used lens market.

How to The Canon 15mm Fisheye Lens chronicle

As a Canon 5d Mark Ii shooter myself I was more than a tiny disappointed that Canon didn't upgrade the existing 15mm fisheye. I understand the need for the new 8-15mm fisheye zoom and I can appreciate why mid-range Canon users are excited by the new fisheye zoom. But for full frame shooters the new lens doesn't offer much unless your into creating circular fisheye images. According to Canon, the new 8-15mm fisheye zoom is supposed to allow full frame users to be able to go from diagonal (15mm) down to circular (8mm) with a easy twist of the zoom ring. Awesome, if you like circular images! If you don't - and I happen to fall into that type - then the new zoom de facto has nothing to offer since the maximum aperture on the new fisheye zoom is a mere f/4.

I currently own the 15mm Canon and I don't think I'll be getting rid of it anytime soon even when the new fisheye zoom from Canon ultimately comes out. Of procedure I'm going to take it for a test run when the time comes and I wish that such a lens existed back when I was still shooting with a Canon Rebel. Undoubtedly, the new 8-15mm fisheye will be a good lens; but will it satisfy the full frame Canon shooter? Lets take a look at the Canon 15mm fisheye lens.

Image capability of the 15mm Canon Fisheye Lens

The 15mm Canon Fisheye is the sharpest lens that I've ever seen on any fisheye. If there's a sharper fisheye lens out there then I'd like to see it. Most of my Photography buddies shoot with Nikon's and not one of them will dispute the fact that my 15mm Canon is razor sharp compared to whether of the fisheye's made by Nikon. Even wide open at f/2.8 this lens is sharp as a tack. With a close focus distance of 8 inches you can move in de facto close with this Canon fisheye lens for those highly dramatic eye popping shots.

Auto Focus is very fast on this lens even though it has the old style Af motor on it. No ultra sonic motor on this lens as it was originally designed back in 1987. Canon has made virtually no changes on this lens since that time.

Chromatic Aberration could be better; and here the Nikon's are clearly the winner, but nothing that can't be dealt with de facto if you shoot in Raw so you can Digitally remove it. I often have the sun in my fisheye shots and rarely do I have to deal with any serious ghosting and flaring problems. Color saturation and contrast are as good as it gets with this lens. The 15mm Canon Fisheye translates into great images and you de facto get to appreciate this lens when you make large prints with it like I do.

Like other high capability fisheye lenses the 15mm Canon has a rear gelatin filter holder. At 11.6 ounces it doesn't weigh very much and you can de facto carry it colse to in a vest or jacket pocket without it being very noticeable.

So although the Canon 15mm is not an "L" series lens, it is a prime lens and can hold its own against a zoom even if it is an "L" series lens.

Is The 15mm Canon Fisheye For You?

If your a full frame Canon shooter and you like a fast prime lens that creates beautiful images then I highly recommend the Canon 15mm f/2.8 Fisheye Lens even if you have to buy it used. If you like the idea of being able to shoot both diagonal and circular fisheye images with one lens and don't mind a slow f/4 maximum aperture, then you might want to go with the 8-15mm f/4L Fisheye Zoom. Whenever it comes out that is!

As for me, I don't know if I'll ever be able to forgive Canon for discontinuing the Canon 15mm Fisheye. But I'll sure give it a try.

The Canon 15mm Fisheye Lens chronicle



Digital Photography Secrets by David Peterson Click Here!

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