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Tuesday, November 29, 2011
Tuesday, November 22, 2011
Tips on Digital Photography - Tips and Techniques on Depth of Field
There are indeed many tips on digital photography that can be mastered to really improve your work. Below is one such explanation of the many digital photography tips and techniques. Depth of field can sometimes be a difficult and tricky thing for quite a lot of people to get their heads around. I know this for a fact since I was one of these people.
And just to prove that I'm not making this all up, I'll have you know that a number of my photography friends also admitted to this fact! The problem doesn't come in the beginning, but more towards the middle when you're mired knee deep in the explanation and you realize that what you thought you understood wasn't really what you should have understood.
Luckily for me though I now understand what depth of field is, and can make things work properly so I can take a good photograph. To put it simply though and to start you out in your explanation, let's take a garden scene with a solitary rose right in the middle of it.
You want to take a picture of the rose, but you're not sure how you want it to look so you start fiddling around with your camera and take a variety of different shots.
In the first shot you make it so that the rose and everything around it - the garden and its surroundings - are very sharp. Everything in this picture is sharp and clear.
Then you take another shot, but this time you place more emphasis on the rose, and put everything else slightly out of focus. You can still see various different forms from the background and you might be able to recognize them for what they are, but they're not so well defined as earlier.
Foreground elements though, are still very much recognizable. Then you go the next step and take another photograph.
This time the rose is more prominent and eye catching, while both the foreground and the background aren't as much, and most of it is blurred and blended in together.
The next shot that you take, you focus solely on the rose to the exclusion of everything else, and make both the foreground and the background completely unrecognizable as anything other than a convenient anonymous backdrop for you main focal point, the rose.
Now, although that was a demonstration of what depth of field can look like in a picture, it probably didn't explain very well exactly what it is.
Some of you might have guessed, but for those of you who are wondering what on earth I'm talking about, just like I used to wonder on earth depth of field was all about, here it is in nice simple sentences. Depth of field, very simply stated, is how much of foreground and background you put into your photograph.
If you take any photographic scene, the sharpness in front of, and behind your subject is what you would call depth of field. If your subject is the main attraction with an out of focus front and back, you would have a shallow depth of field, and if you have the whole scene in sharp focus, both front and back, you would have a wide depth of field.
It's not exactly confusing just yet is it? It might not be exactly clear either, but then again, just reading isn't really going to solve all of your camera problems. You need to get out there with your camera and try different settings for you to be able to fully grasp and appreciate what depth of field is.
That being said, there are a few things that come into consideration when you're looking into depth of field and those go along the lines of -- image magnification, lens aperture setting and the focal length of your lens. When each of these three variables comes into play, you're faced with a variety of different options to choose from, and each of these will give you different results.
And this really is where experience comes in. If you've been playing around a bit and experimenting with your camera, taking many different shots and all that, you will have found out for yourself what different focal lengths, aperture settings and image magnifications come into play. For instance, the wider you open the lens aperture the more light that comes in, and the less sharp your photograph is going to be in certain areas.
The smaller you make your lens aperture, the less light comes in and the sharper your image will be. You can use these properties very nicely to control depth of field in your photographs.
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Saturday, November 12, 2011
The Canon Powershot SX210 and Its Remarkable Features
The Canon powershot SX210 is a very versatile camera. Not only is it very compact but it is very powerful. It has nice resolving power and a wide angle Lens. It also comes with a lot of very advanced features that many users will enjoy. As if this were not enough the camera is capable of recording HD video images with sound. This is a lot for a still camera to offer.
The powershot SX210 is a very compact camera. Some may be fooled by the size but do not be. This is a very advanced piece of electronic equipment. The camera is small enough to rest within the palm of the hand. It is also very slim and light weight as well. The camera could easily be inserted into a shirt pocket. This small size can make traveling a whole lot easier.
This Canon unit is capable of very high resolution image. The sensor is over fourteen point one mega pixels! This is over twice the resolution offered by the high quality cameras of the past. The camera also features a very wide angle lens. This allows vast landscapes and city scenes to be shot in one large photo without the addition of a separate lens just to accomplish this.
The powershot SX210 comes equipped with a handy new feature. It is called scene detection technology. This allows the camera to take an image in through the lens and evaluate what settings are appropriate for photographing it. The system makes these choices from over twenty different variables. This allows for a lot of flexibility in many types of shooting situations. This could work well in nasty weather or in poor light conditions.
One really interesting feature of this camera is what the company calls motion detection technology. This was designed to eliminate something known as motion blur. Sometimes people photograph a subject that is moving very quickly and notice that the final result is a photo that has a lot of blur artifacts. This can be very distracting especially for people who like to photograph sports.
Even though this unit features a lot of automatic features it should not be forgotten that it is great for manual users as well. Some of the most critical aspects of photography have fully manual controls on this unit. These include focusing, aperture and even shutter. Most advanced shooters will appreciate the opportunity to have manual access to these types of features.
The Canon powershot SX210 is not only a still camera. It can also record high definition video clips with sound. This is a nice feature for capturing family memories. The camera can record at 720 progressive frame resolutions. It runs at a full thirty frames per second as well. This ensures high quality HD video that also runs smooth and has sound. These memories can be played back on a hi-def television unit.
The new Canon Powershot SX210 could be considered very compact in size and is a feature loaded camera that has a lot to offer many types of photographers. Many people will appreciate the balance of automatic and manual controls. The high resolution photographs and full motion videos will be of much use to a lot of shooters as well. People who prefer wide angle photography will be satisfied with the factory lens that the camera comes equipped with.
Saturday, November 5, 2011
Canon Powershot S3 IS Review
The main attraction of the Canon Powershot S3 IS is its 12x optical zoom lens. This places the camera fairly and squarely in the super zoom category. I would say this is a camera for someone who enjoys photography and who will use a camera on a regular basis, but cannot afford a Digital SLR or is not committed enough to spend out for one. It has six megapixels.
For any super zoom digital camera hand shake can cause problems. This is especially true in lower light when the zoom lens is being used to its full extent. The Powershot S3 IS can help in this situation owing to built in optical image stabilisation.
In terms of features the Powershot S3 IS is one of the most advanced models below the level of Digital SLR. Many of the features it offers can be found in SLR models. Key features include fully manual exposure settings as well as aperture priority and shutter priority. These are essential to anyone who likes to take control over how the final image will look. With these features available the Powershot S3 IS could also be considered a good starting point for someone who is looking to learn how a camera works and to take up photography as a hobby.
Other advanced features include three metering modes (Evaluative, Centre-weighted average, Spot (centre or linked to focusing frame)), exposure compensation (+/- 2 EV in 1/3 stop increments), bracketing (1/3 - 2 EV in 1/3 stop increments) and ISO equivalents of Auto, High ISO Auto, 80, 100, 200, 400 and 800.
To help get colours right there are also a variety of white balance settings available. These are Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Flash and Custom.
You also have a number of options when it comes to shooting movies. These include being able to shoot TV quality movies and also time lapse movies. Time lapse movies are where the camera takes a picture at set intervals. Typical uses are to show a flower gradually opening or plotting the movement of clouds across the sky. There is also a movie mode that lets you shoot a short burst of movie and play it back in slow motion. These movies are often used in analysis. Tennis serves and golf swings seem to be popular subject for this.
In terms of image quality I was very impressed by the Powershot S3 IS. The images were crystal clear as the sharpness of each image really caught my eye. I was also able to take a great macro shot with the camera. As with other super zoom cameras the problem of purple fringing does pop up. This is where a thin purple line is added to the edges of light objects when they are caught by a bright light such as the sun.
I found the camera copes well with shots taken indoors in poor light too. The flash unit is powerful and the camera has a good focusing mechanism as well. You can also adjust the level of the flash to suit the situation. An external flash unit can be bought separately from Canon to further boost performance when necessary.
To get the most from this camera you will need to set aside time to go through the manual and take the camera out to experiment with it. Any effort put in is likely to be well rewarded.
The Powershot S3 IS is one of the more expensive super zoom digital cameras on the market. That said I still think this camera manages to offer good value for money. I have reviewed almost all the super zoom digital cameras available and the Powershot S3 IS is the best one available.
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Tuesday, November 1, 2011
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