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focal Digital Camera Guides
focal digital camera guides

Guide to Buying a Digital Camera

For many folks buying a digital camera can be a confusing and bewildering purchase since there are so many models to choose from and so many different kinds of digital cameras too. Unless you are a photography hobbyist you probably won’t be familiar with all of the acronyms and language used to describe the features of each camera either. So here is a general guide to help you know how to buy a digital camera that matches your own photographic skill level.

With so many different digital cameras on the market today, buying the right one for you can be difficult. Some are small enough to fit in your pocket and others are so big they need their own carrying case or camera bag to fit everything into. Some are simple enough for a novice to use and others are so complex that you need a manual each time you use it. There are a number of tips though to help you find the right one.Some people aren’t sure what a digital camera is. The difference between a digital camera and a film camera is simple.

The first consideration which must be taken when purchasing a new plasma TV or other high definition TV is resolution. Newer technology televisions are built with 1080p resolution, while older high definition televisions have 720p resolution. The higher resolution televisions often cost about 50% more, but have a significantly clearer picture than 720p televisions. The 1080p resolution also allows the owner to take full advantage of the clarity produced by other high definition products, such as blu-ray DVD players.The zoom feature is clearly important. Most digital cameras have both digital and optical zooms. You want a camera with a high optical zoom, the higher the better. Don’t get confused by the massive digital zoom numbers manufacturers put on the camera specifications, digital zoom just magnifies the image taken which leads to degradation of the quality, optical zoom refers to the actual ability of the lens to zoom in on the object, so clearly optical zoom is always better than digital zoom.

One of the most important 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 important 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.

If you are looking to buy digital cameras and are thinking that you want an SLR make sure you have a computer that can handle it. What do we mean? Digital SLR cameras usually have huge mega pixel ratings and your pictures will be very large! A slow computer will take forever to download and edit these pictures. Make sure your computer can handle the new technology or your money might be better spent in computer upgrading.

This model is one of the latest to be launched by Canon in the PowerShot digital camera series. This compact digital camera comes with a price that most can afford and a number of features that makes the camera worth buying. Size wise, the A2000 IS is smaller than the A720 IS model by 25%, though the features are the same, like a 36-216 mm focal length, the optical image stabilizer or the optical zoom of 6X. This model comes with a resolution of 10 megapixels, a processing engine DIGIC III, seventeen shooting modes, an LCD screen that has 3 inches and many more. Some of the technologies included in this camera are Motion Detection, Face Detection and Auto Correction of Red Eye.

The market is flooded with digital cameras and it can get confusing for a buyer to choose one best suited for his purpose. This increasing popularity of digital cameras is not a fluke but because they provide enough advantages over the traditional cameras, the manufacturers have all but abandoned the old cameras in favor of the digital ones.

Photos can be stored digitally and only the necessary photo can be printed versus printing every shot of the film. New rolls of film need not be bought as the storage cards can be used over and over again. Image enhancement is easy with digital cameras and photos can also be shared instantly. Taking all this into account it is no wonder that digital cameras are so much in demand.

I’m a firm believer in the power of choice. Choice in cars, choice in cable providers, choice in which movies I watch, and choice in how I live my life. Freedom of choice is in our constitution and charter of rights. I’m also a firm believer in keeping things simple, and there is such a thing as too much choice. Take digital cameras for instance. As of today, Amazon has 3,859 digital cameras (and accessories) listed ranging in price from $24,995.00 all the way down to $40.99. That’s not choice, that’s a frackin’ nightmare!

Rechargeable batteries. Your new digital camera comes with a battery. However, you would not want to be caught without an extra battery when your original battery gets exhausted and emptied out in the middle of a trip or a photo shoot. Rechargeable batteries cost more than disposal batteries when you buy them, but they are cheaper in the long run. Also, rechargeable batteries are the way to go if you are concerned about the environment.

Every parent loves having pictures of their children? Pictures bring memories, and memories are priceless. Not to long ago, people could only take limited amounts of pictures, and would have to wait a while before they got the pictures in their hands! With the latest technology, digital cameras allow the user to take many more pictures, delete the ones you do not like with the click of a button, and download them onto your PC within minutes. Now, buying a camera may be a bit tricky for some people. Here are some things to do and consider before buying a camera.

About the Author

Read about SamSung Digital Camera Review and also read about Best Canon Digital Cameras and Panasonic Hd CamCorders

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Would an 18-55mm lens be okay to start out with?


I’m considering the pentax k-x which has 18-55mm DA-L lens kit (What does DA-L mean?)

I was checking the focal length data on some of my photos on flickr (since it tells me more than my P&S camera will) and most of them say 6.3mm. Some of the zoomed or macro ones say 7.2 or 7.3mm. One image says 18.6mm.

So if I got the oentax k-x and tried to use the lens it came with, would I even be able to take any photos? Or would I just get really frustrated with the focus? What kind of images could I take with an 18-55mm lens. Please don’t say this is a stupid question, I’m a newbie, haha. I’ve been reading a digital photography guide, but the things about exposure are more about point and shoots. If you know a good website or could even take the time to explain focal lengths/ depth of field, I’d love you forever ;) I know that a longer focal length is used for something like a close up or really zoomed image, but I don’t fully understand yet.
Thanks :)

The 18-55 zooms have become pretty much the standard kit lens for all brands. The focal lengths (i.e 18-55mm) pretty much covers the focal lengths most frequently used by the average photographer (particularly the hobbyist).

About focal lengths:

Don’t worry about the difference between the focal length of the 18-55 and your P&S. The P&S has a tiny sensor which means light only needs to be focused on a tiny spot. DSLRs generally have a bigger sensor which means longer focal lengths for a similar view, film cameras generally need even bigger focal lengths to manage similar views.

Basically focal length tells you how stongly light converges as it passes through the lens ( the more the convergence the smaller the number, the less the convergence the bigger the number). Which is why it’s not so useful as a comparison between cameras with different sensor sizes. Nowadays the focal lengths are sometimes given in equivalents of a 35mm film camera.

Oh yeah and focal length affects the apparent magnification and field of view. Here’s an explanation of focal, field of view.

http://www.dpreview.com/learn/?/key=focal+length

About depth of field:

Depth of field is rather complicated to understand unless you understand how a lens works and how focus works. I’ll try to explain it all the same. A lens can only focus on a point. Everything infront or behind that point is out of focus. Your eyes don’t have the level of detail necessary to see the tiny focus problems (which is a good thing because your eye also can only focus on a point. Just imagine walking around and only being able to see a point about 0.0000001mm thick, 1 meter ahead of you). Anyway that introduces the circle of confusion, which basically is how much out of focus things can be while you still see them as if they are in focus (ok it’s more complex than that but that’s the only thing you really need to know).

So let’s sum up what we have so far, Only a point is in focus, but when you look, you see some distance infront and behind that point as if it’s in focus, anything that is further than a certain distance from the focal point you’ll see as out of focus.

The next question is what is the distance from the focal point at which things still appear in fous. Answer, it varies. Next question, what makes it vary and how does it vary? Answer, a relation of focal length, subject distance and aperture (i.e how big the hole is). At longer focal lengths you get shallower depth of field (more stuff out of focus), shorter focal lengths give wider depth of field (more stuff in focus). Aperture is stated in f-numbers (the numbers refer to how much light the can pass through the hole). Bigger f numbers are smaller apertures and smaller f numbers are larger apertures. Larger apertures give shallower depth of field, smaller apertures give deeper depth of field. The last factor, subject distance is not that important since you can’t really change it most of the time, but it has two effects. The first is when the lens is focused on a point at say 2 meters, you have a shallower depth of field than when the lens is focused on an object at or near infinity. The second thing is the distance between the object you are focusing on and the object infront or behind it. The further away the out of focus object is from the in focus object the more out of focus it (the out of focus object) appears, and vice versa. There are a number of websites that explain this, and they have diagrams which make it easier, using google or reading the wikipedia pages will probably be easier to follow than my explanation.

About the 18-55 DA-L:

The 18-55 is definitely ok to start with. It’s not the best pentax lens you can find, but it’s cheap, covers a useful range, is small. It doesn’t really have any significant optical flaws.

The DA-L is pentax terminology and probably means something, unfortunately I’m a Nikon guy myself so I’m not to sure. From some quick googling, it appears Pentax has two 18-55mm lenses (optically they are the same, the glass and movement is exactly the same). The difference DA-L 18-55 is lighter, has a plastic mount and lacks “quickshift”* while the DA 18-55 II is slightly heavier, has a metal mount and has “quickshift”*. The DA-L is the standard pentax kit-lens.

* Quickshift means you don’t have to turn off autofocus before you can use the manual focus ring. You can just focus by turning the ring even when the camera and lens are set to autofocus.

Well I’ve tried to be as detailed as possible without making it too complicated, but after reading it myself I’m afraid I failed. It would be a pity to have completely wasted my time writing all this so I’ll post it anyway and hope you find it useful.

photography Tips ( Choosing a Lens )


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