wardzach2007
Super Moderator
Thought this would be a very helpful thread for myself & others. So if any of you have any questions or just want to give out free, good advice, this is the thread.
Exposure Basics
http://ezinearticles.com/?Beginning-in-Photography---Exposure-Basics&id=790563
Digital SLR Tips - Use a Tripod
An introduction to camera lenses. A quality lens will last...Cameras come and go! -
http://www.cobracountry.com/fototips/
Exposure Basics
http://ezinearticles.com/?Beginning-in-Photography---Exposure-Basics&id=790563
So you've just bought a shiny new SLR camera huh? And a lens or two to go with it? That's great. Now all you have to do is learn how to use it. I'm assuming here you bought an SLR camera because you want to do a little bit more than take happy snaps at family events and holidays. So for those new to photography as anything more than that, this article aims to give you a little background on the basics of exposure to help you on your way.
Shutter speed
There are two elements to creating a "correct exposure". These are aperture, and shutter speed, which we will look at first. When you press the trigger button on your camera to take a picture, it opens a set of sliders, like opening a window. How long it stays open, depends on how you set the shutter speed. Shutter speeds can range from extremely fast (i.e. 1/8000 of a second), to very slow (30 seconds), or even infinity if your camera has a bulb setting. These are extreme shutter speeds and not often used, except by people who shoot fast moving subjects, or in very low light. For most of us, we tend to stick to somewhere in the middle. As a general rule, the faster the shutter speed, the sharper your photo will be. For most people, anything at 1/60 of a second or above is acceptable when hand holding a camera. Lower if you have a particularly steady hand. If you need to use slower shutter speeds, you will need to use a tripod or rest your camera on a steady surface. These slow speeds can be particularly useful for creating blurred effects. For example the flowing water in a waterfall.
Aperture
Ever wondered how photographers get their subjects to really stand out by blurring the background? The secret (which really is no secret) is adjusting the aperture. The aperture changes the depth of field in your photo. Depth of field is how much of the image is in focus. For example, if you have a depth of field of 4 meters, anything within that distance of the subject you are focusing on will also be in focus. There is as much variety with this control as there is with shutter speed. You can choose to set a narrow aperture (long depth of field) when you want the whole shot in focus, for instance a great, sweeping landscape, or a wider aperture for portraits.
Ok, so you've got your shutter speed sorted from your aperture. Now we just have to put them together. Any SLR camera will have an inbuilt light meter. This little gadget measures the amount of light you will need to create a correct exposure. It is usually in the form of a little bar with a too high (+) and a too low (-) sign at each end. It is simply a matter of balancing one against the other so that the meter is centered. Once you've done that you can press the button! That's all there is to it.
ISO
Another choice that will effect your exposure is the ISO you use. With film cameras, this means the speed of film that you use. If you use a 100 speed film, your ISO is 100. Digital cameras also have an adjustable ISO speed. It's just in the form of turning a dial instead of loading a different film. A general rule is to use the lowest ISO you can get away with. Higher ISO films or digital settings can result in noisy (grainy) pictures. They do, however, allow you more freedom in your exposures in that you can shoot with less available light. Experiment with your particular camera, see what you can get away with. Remember that the quality required will be different for everyone. If you only want to make small prints to put in an album, or just store the photos digitally on your computer, then you will not need the same quality as if you want to make large prints to hang on your wall.
So there is some food for thought for those starting out in photography and looking to do more than just point and shoot. Now it's time to go out there and shoot. Experiment with different settings. Try new things. The technical side of photography you can read about anywhere. The creative side, well, that's up to you.
Digital SLR Tips - Use a Tripod
An essential piece of kit and a part of learning about photography is to know when to use a tripod. There will be times when hand holding the camera simply won't do.
Many professionals, especially wedding photographers, leave the camera permanently attached to a tripod, and a good one too, as with weddings it is always better to be safe than sorry. With sports photographers a tripod or monopod is necessary just to take the weight of those huge 500/600mm lenses during a game.
What is the standard "rule" for when to use a tripod? Try this simple tip. If the shutter speed is slower than the focal length of the lens, use a tripod! For instance;
• 50mm lens needs 60th/sec or faster
• 200mm lens needs 200th/sec or faster
• 500mm lens needs 500th/sec or faster
Why? The more you magnify the subject with telephoto lenses, the more you magnify any movements which will inevitably give you "camera shake". Also, if you plan to enlarge the photo many times, you need to use a tripod to get the clearest image possible. For small prints it is less noticeable therefore not so necessary.
To start off with, I suggest spending no more than $100 to $200 (or less) on a reasonable tripod and upgrade as and when is necessary. A cheap, light but reliable and sturdy tripod will give you the support you need, when you need it for most situations you may come across. (You can always weigh it down by hanging a bag in the middle of it for extra support)!
Take night photography for example. It would be impossible to get any half decent, well lit night-time shots without having to use a tripod. The shots below were taken with shutter speeds of a few seconds, as part of an advertising/lifestyle campaign for a real estate company. As you can imagine, 4 or 6 seconds is far too long to hand hold and get a decent shot!Other times you may need a tripod is when shooting landscapes because, as I mentioned before, the best light is early morning or early evening when the light is low. To get good depth of field, you would need to "stop down" (close) the aperture to around F11 or F16, which would normally mean a slow shutter speed.
You may want to do some still life shots of your stamps, jewellery or any other important items you have, or maybe you want to produce still life images for selling as stock. If you use a tripod, you can set the shot up and then simply re-arrange the subject matter accordingly. This way you don't have to continuously look through the viewfinder and re-position the camera or remember where it was.
This shot was set up to test a new camera (the Canon EOS 10D) when it came out. I used a very simple set up involving just a piece of orange card as a backdrop, 2 studio lights and the camera on a tripod. As you can see an exposure of 1 ½ seconds could not be handheld.
There are 2 types of "head" to think about when buying a tripod. The conventional "pan and tilt" or the "ball and socket". In fact there are more, but these are the favourites.
Note: Try to ensure that whichever tripod you buy has a "quick release" feature. This is great if you want to quickly release and re-attach your camera to the tripod in a jiffy!
A pan and tilt tripod head has one (see fig.1) or two (see fig.2) levers with which you (strangely enough) pan and tilt the head. This is the norm for the lower to mid range tripods and is what most people start out with (myself included).
A ball and socket on the other hand (see fig.3), is great for speedier work as you can fluidly manoeuvre the camera in one fast movement. A variation and addition to this, is the grip action ball head (see fig.4) which I use all the time. A quick squeeze of the handle and the camera can be moved swiftly and easily and set in place just as quickly and securely by releasing the grip…brilliant!
It is all food for thought and I suggest that when budgeting for your kit, keep some aside for a tripod. There will come a time when you will need one.
http://www.all-things-photography.com/use-a-tripod.html
An introduction to camera lenses. A quality lens will last...Cameras come and go! -
The camera lenses that you choose now, will almost certainly dominate what camera make or model you stick with in the future. New cameras are being constantly updated and improved, but get yourself a decent selection of optics NOW, and it is one less thing for your wallet to worry about later on.
Don´t be fooled by the looks of a lens, it is the quality of the glass that really counts! As well as certain features such as the ability to switch to manual focus and operating in a smooth, sturdy manner.
Think of it like this. You buy an expensive pair of designer glasses, but put cheap, non-prescription glass into the frame. They look good, but don´t do the job they are supposed to do.
What camera lenses should I start out with ?
This animation shows the range of camera lenses from 16mm to 400mm. Bear in mind that the camera was digital and had a crop factor of 1.6. If used on full frame 35mm cameras, each picture would be slightly wider. Click on the picture to see the photos in strip form. As a guide, 50mm is the focal length that the human eye sees things.
If you are serious about photography as a hobby or profession, I cannot stress enough, that the choice of lens/s you make now will stand you in good stead for a long time. In fact, the only time you should need to change them, is if you change the make of CAMERA that you use.
Most semi/pro´s go for either Canon or Nikon kits, and once they have made the choice, rarely do they change it. The reason? It´s because they have spent years building a great lens collection covering the focal range from ultra-wide angle (16mm or below) to long-range telephoto (500mm and above).
It is a lot cheaper to trade in your camera every few years than to trade in all those lenses!
"I don´t have the money!"
Don´t panic! You don´t have to spend a fortune to get decent glass on the front of your camera. Use this page to learn about camera lenses, and this guide should lead you in the right direction for choosing your starter kit for now and/or your pro kit for later on.
http://www.all-things-photography.com/camera-lenses.html
http://www.cobracountry.com/fototips/
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