Nov 17 2008

Taking Portrait Photos with Blurry Background and Understanding Depth of Field

Posted in Photograpy by admin

We have all seen beautiful photos where the object is perfectly focused while the background is blurred. Such a photo can be very dramatic and might seem to be hard to shoot. In this article we will give you a few tips on how to shoot blurry background photos that will impress your friends and family. You will also understand what Depth of Field is and how to control it.

Depth of field (also known as DOF for short) is the most important thing to understand before shooting a blurry background photo. Depth of field is defined as the range in which the photo is in focus. For example an infinite depth of field means that the photo will be in focus from a certain distance from the camera and up to infinity. When taking a blurry photo the goal is to set the depth of field just around the object. In this way the object is in focus while the background behind it is not.

How do you control the depth of field? After all there is no “depth of field” menu in the camera (wouldn’t that be nice). Depth of field is an optical figure that is influenced by a few factors:

  • The distance of the object from the camera: This is obvious to understand when taken to the extreme. Shooting an object 10 feet from the camera will result in a smaller depth of field than shooting an object 100 feet from the camera. Obviously shooting an object which for all practical purpose is infinite distance from the camera will result in the camera focused on infinity and the depth of field being infinite too..
  • The aperture: The wider the aperture (f number decreases) the smaller the depth of field and vice versa: the narrower the aperture (f number increases) the greater the depth of field. Just remember that the depth of field changes along with the f number: when the f number increases and depth of field increases and vice versa. Unfortunately you can not just change the aperture as you wish. Changing the aperture results in a need to change the shutter speed (either manually or the camera can most likely do that for you automatically). The wider the aperture the more light that penetrates the lens and the faster the shutter speed needs to be so there is a limit to how wide you can set the aperture to.
  • The focal length of the lens: The shorter the focal length the greater the depth of field and vice versa the longer the focal length the smaller the depth of field. For example if you use normal lenses at somewhere around 50mm your depth of field will be much greater than if you use zoom lenses at 200mm. With long focal length the depth of field can be extremely small. For that reason zoom lenses are a good choice in order to shoot a good blurry photo that is practically focused only on the object.
  • After understanding the theory it is best to go to the field an experiment. You will get a sense of how your photo will look like and how blurry the background will be after playing with different lenses, different apertures and different distances from your object. If you own zoom lenses start with taking photos of a relatively close object while using your zoom lenses. You will find out that it is extremely easy to get a blurry background photo using this method even without setting the aperture. Once you feel comfortable with that setup start changing the aperture and also change to your normal 18mm-55mm or similar lenses.

    Most cameras allow to manually change the aperture by putting the camera in “A” mode - while you are changing the aperture the camera will automatically set the shutter speed accordingly. Some cameras allow you to manually set both aperture and shutter speed.

    In conclusion shooting dramatic blurry background photos is easy with some minimal understanding of depth of field and some experimenting.

    Ziv Haparnas is a technology veteran and writes about practical technology and science issues. This article can be reprinted and used as long as the resource box including the backlink is included. You can find more information about photo album printing and photography in general on http://www.printrates.com - a site dedicated to digital photo printing.

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    Nov 8 2008

    Photographing Kids

    Posted in Photograpy by admin

    Kids grow up so quickly and while we are often left with countless memories, most parents have only a drawer packed with school photos, blurry holiday snaps and the forced grin of the inevitable yearly birthday picture to account for the years gone by. It’s time to stop bemoaning the latest photograph of your thumb obscuring your adorable baby and get on with improving your skills as a photographer.

    Why should you bother when the near-by mall has a perfectly good photo studio, you ask? Photographing children poses specific challenges but yields numerous rewards. While it can be frustrating when you miss that spontaneous moment, it is also highly satisfying when you manage to capture the joy in their faces as they dance in the summer’s first sun shower. Capturing the day-to-day moments will provide a treasure trove of memories that you will cherish forever. As well, your own images take on a more personal feel and a more meaningful connection, something that can never be achieved in a generic mall photography studio.

    Follow these easy steps and immediately improve your snaps of the kids.

    Making The Unusual Usual

    Friends with children often say to me “My child always pulls faces for the camera and I can’t get a picture without little Johnny sticking his tongue out and crossing his eyes.” Kids –and many adults as well– are prone to hamming it up for the camera, however, they will be more natural if the camera is a part of their everyday life instead of brought out once or twice a year. By making it a regular part of their lives, it will increase the comfort level and encourage portraits that are more natural. Try bringing out the camera once or twice a week and focusing it on your kids. They will become accustomed to having it around and it will give you a chance to practice your technique, too. And, if they still clown around for the camera, get into the swing of things and enjoy it. Little monkey faces are a part of childhood!

    Kids’ Eye View

    As adults, we look one another in the eye and photograph our friends at eye level. Do the same for your children. Bend down on one knee or sit on the floor to get a picture that reflects a child’s perspective. To add a little excitement, have fun playing with perspective by shooting the image from the ground up. Lie down on the ground and taking a picture from that viewpoint. Suddenly toddlers become giants and we can witness the world as they see it, by looking up.

    Patience, Patience!

    Small children have a limit of two or three minutes before they become bored with Mummy or Daddy’s photo session. The urge to run off and play becomes just too much! Don’t force kids to stay in one place for long, unless you like pictures of sullen little faces. If you are taking a formal portraiture-style photo be sure to plan ahead for the best possible results. Check your batteries, make sure there is film in the camera and if you are using a digital camera see that there is space on the memory card. Provide your toddler or small child with a prop, like a ball or a favorite toy to help create a more natural expression, instead of the one that says, “Just hurry up and take my picture, Mom!” Keep it fun and stress-free.

    Fill The Frame

    Because backgrounds can sometimes be distracting, do not be afraid to move in closer and take a picture of your angel’s face. It creates drama and interest in the photograph and eliminates extra clutter. Unless you are taking a travel photo or an image of the child engaged in a particular activity, feel free to emphasize the most important element of the picture- your child. Use the zoom or macro tool on the camera to get in closer. Pictures of your little one’s hands or feet can also be interesting studies, and one day you may find yourself saying, “I can’t believe they were so tiny!”

    Just A Little Off-Centre

    Many professional photographers use “The Rule Of Thirds” approach which means that they mentally divide the frame into three sections both vertically and horizontally –like a tic-tac-toe grid– and place the subject of the photo at one of these intersecting points. It helps to create a more dynamic photograph, than one where the subject is smack-dab in the middle. Take note that if your camera is an auto-focus model, you may have to focus first on your subject and then, with the shutter button still half-pressed, recompose the image.

    Natural Light Rules!

    One of the tricks of the trade in photography is to use morning or late afternoon light. The sunlight at this time is wonderful and helps to produce pictures that are bathed in warmth. Direct light flatters the subject and adds to a more intimate and natural-looking photograph. It also helps to greatly reduce the bane of every parent photographer- red eye!

    Experiment with taking advantage of the sunlight pouring through a window, or march the kids outside on a sunny day and photograph them while they are playing tag. To have a well-lit photograph make sure the light is behind you, shining on the subject. To create drama, try using side light for impressive shading. If you try to take a photo with the sunlight behind your children, a technique known as “backlighting”, you will end up with the subject looking like a dark silhouette.

    The Last Word

    It really is all about fun. View the time you are taking to photograph your children as time to share in their adventures and imaginary play. A frustrated mom directing kids to a more picturesque location and insisting on a smile does not reflect kids’ reality. Pick up the camera only when everyone is relaxed and happy. Finally, don’t expect every photo to be a masterpiece. The truth is that only a few images from each roll are frame-worthy, but the important thing is to keep snapping away to capture the moments that depict their ever-changing lives, in all its unique glory!

    Copyright: A. Charlotte Riley 2004

    Charlotte Riley has worked as an Internet editor, content producer, marketing writer and researcher. She has a BFA from Concordia University, majoring in Photography. In her spare time she can be found cooking, working on crossword puzzles or hanging out with her daughter, Kate. Contact: http://www.acriley.com

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    Oct 31 2008

    The Photography Portfolio Building Your Reputation

    Posted in Photograpy by admin

    If you have hopes of becoming a professional photographer, or even just of trying to get your work published in a public forum, you will need to create a photography portfolio. So what’s so important about a photography portfolio anyway?

    There are many reasons why having a portfolio of your work available for others to view. If you are seeking employment as a photographer, then the need for a portfolio is obvious. If you are not seeking a photography job, there are still good reasons to have a portfolio. For one, you love photography and you take a lot a pride in your work. They are important to you. Most likely, some of them are very good. Why not create a portfolio that showcases your best work so you can show it to others (even if it’s just friends or family that comes over for a visit)?

    - Building a Photography Portfolio

    Before we get into what goes into your portfolio, let’s discuss the portfolio itself. What should it be made of? How big should it be? You may have seen portfolios with covers made of all types of materials such as plastic, leather and even stainless steel. These fancy covers are usually much more expensive and may not be practical for a beginner. If you are competing for high-price jobs and want to stand out from the crowd, these expensive covers may be a nice touch. But for most people, a regular black plastic cover will work just fine. It’s what’s inside the portfolio that is most important, right?

    So, you are probably best to stick with a plain black plastic cover and work hard on beefing up what’s inside. Don’t decorate your portfolio with cutesy stickers and such; this will look amateurish and unprofessional. It’s not a scrapbook; it’s supposed to represent your high-quality work.

    Now, as for size, this is going to depend on the size of your largest pictures. An 8 X 10 is probably going to be your largest. If your pictures are not this big, you don’t need a portfolio this big. Your biggest will most likely be an 11 X 14 and it could be as small as a 4 X 7.

    The most important thing for you to remember is convenience - both for you and for the person who will be looking at your portfolio. You want to keep it professional and easy to hold, carry and look over.

    - Using a Photography Portfolio

    So now that you know what a portfolio is and what type to get, how do you actually use it? Well, we mentioned you are going to fill it with your best work. This means you want a portfolio that can easily be changed. You may want to pull out old ones and add in new ones. You don’t want to go for a job carrying along every picture you’ve ever taken. You’re going to want to have 15-20 of your best work. You are also going to want to be sure your pictures are relevant to the job. If you are trying out for different types of assignments, you may want to create portfolios that work for each of the types of work you are doing.

    Of course, you only want to show your best work but you want to give the impression that you can handle any type of assignment given to you ad not that you are “stuck” in only one type of photography.

    You want to showcase your best work; this is best technically as well. You may have a photo that is really important to you because of the image it represents or the memory it brings but if it is not technically perfect, it doesn’t belong in a business portfolio. Save that one for your coffee table.

    Looking for information about Photography?
    Go to: http://www.asaphotography.com.

    ‘ASA Photography’ is published by Colin Hartness - An excellent resource for Photography! Check out more Photography articles at: http://www.asaphotography.com/archive.

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