Canon Camera Basic Guide Flash metering

by Tim Harris

Metering for ambient lighting conditions and flash metering has totally different requirement. The metering for ambient lighting condition is done before the shutter of the camera is opened. In the Canon EOS camera, ambient light metering is done when you press the shutter button halfway down. Flash Pulse metering however is done when the shutter button is press fully down. There are two ways to meter for flash pulse automatically. One way is by measuring the flash pulse as it is being released. The other way is to do a pre-flash test. This is achieved by a low powered test pulse of a calculated brightness before the shutter opens.

These are the two metering system used by the Canon flash metering system. The Through the Lens (TTL) metering system adopts the first method of metering for flash automatically described above. Canon first introduces the TTL metering system with their T90 model during the 1980s. This feature was later incorporated in the EOS line of camera as a standard feature. As such the Canon T90 is the only non EOS that can use the TTL flash-metering system.

TTL system works by calculating the light which is reflected of the subject and entering the lens after emission of the Flash Pulse. In short the TTL system actually measures the light which is reflected off from the film surface in real time. This is archived by the use of the “Off The Film” (OTF) Sensor. Once there is enough light entering the sensor, the flash will be turn off. As Digital Camera does not use films, the Canon Digital EOS Camera does not support the TTL flash metering system.

The sequence of operation of the TTL system is as follows;

1. By pressing the shutter button halfway down, the ambient metering process takes place. Shutter speed and aperture size is calculated and programmed by the camera or user depending on the mode which the camera is running on. These modes can be the AV, P or M mode.

2. Only when the shutter button is depressed all the way, the internal mirror is turn up and exposes the film. Power is then sent to the flash unit which will emit a flash light to illuminate the scene. The length of the flash pulse is determined by the OTF sensor in the camera which is metered for normal operational conditions. If the picture is taken under bright lighting conditions, the auto fill reduction will take effect and reduce the illumination of the Flash.

3. When the foreground is sufficiently illuminated, the power supply to the flash unit is terminated which in turn extinguishes the flash light. The shutter is opened during the entire duration of its speed run. After that, the shutter then closes and the mirror flips back to it original position. For those cameras which have a warning light to confirm the success of the flash exposure operation, the warning light will then glow to indicate the success of the flash metering operation.

As the OTF sensor measure the reflected light off the film, the chemical composition of the film will also affect the amount of light which will be reflected. In most cases, this will not be a problem as cameras nowadays are adjusted to operate with normal films. This only becomes a problem if you have to use specially coated films with different level of light tolerance.

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Some Advice on Purchasing Creative Compact Cameras

by Dan Feildman

These cameras aren’t much bigger than the compact digital cameras, but they offer a lot more user control. The lenses might be bigger, heavier, and of higher optical quality. Almost all creative compact cameras offer the option of storing images in RAW format, usually proprietary but sometimes in Adobe’s standard DNG format.

A standard JPEG is convenient for uploading to the Web, sharing with friends, or getting prints. Unfortunately, a lot of shadow and highlight detail that was captured by the sensor can be lost with a standard JPEG.

Using the RAW format, the photographer has the opportunity to bring out that shadow or highlight detail in images by using a graphics editing program (or letting a professional lab do it and make a really great print).

Unless you are prepared to spend an evening reading the manual and learning the settings I don’t recommend you buy one of these cameras. Otherwise your results will be the same as if you had used a simpler compact camera.

Panasonic LX2 (28-110mm F2.8-4.9 image-stabilized Leica lens; good for wide angle). Canon G7. 35-210mm F2.8-4.8 lens; no RAW capability; very bad noise at high ISO Ricoh GR Digital. This has a fixed focal-length 28mm equivalent lens that will be superb for wide-angle scenic photos. It is not clear if this camera is going to be sold in the United States.

The sad thing is that creative compact cameras appears to have gone out of favor and you may have difficulties finding one on the market. Camera companies are concentrating their energies on the “SLR-like” category and SLR category

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How to Photograph Landscapes

by SFXsource

There are endless beautiful landscapes. Take a short trip to a local or national park- you don’t even have to leave the Unites States! The following tips will help you take great landscape photos. It doesn’t matter if you are a beginner or professional because these are simple tips that anyone can follow.

1. Take into account light quality. Is the light soft or harsh? Are you photographing at sunrise or sunset, or during the bright afternoon? Are there clouds, is it overcast? The best light will be before 10 a.m. and after 2 p.m.

2. Look for interesting lighting. Back-lighting and side-lighting are great for mountains. Side-lighting can be created by turning 90 away from the sun. Back-lighting is very dramatic and creates silhouettes.

3. Think about composition. Symmetry often works with landscapes. Also, simple is beautiful. How do you want to place the trees, lakes, streams, and mountains? What kinds of shapes are in the frame?

4. Try to include bridges, paths, and roads. Use their shapes to draw the viewer in and lead them around the photo. If you photograph them at an angle, you are able to create that effect. Place the start of a road or path in the corner of the photo.

5. Try using infrared film for your landscape photography. Infrared film is more sensitive to infrared light. This means that your photographs will have darks skies and light/ bright leaves and vegetation. It’s awesome!

6. Make sure you are using a large depth of field (small number, large aperture) so that your entire photo is in focus. Longer exposure time also increases depth of field.

If you have water in your landscape (waterfalls, ocean, lakes), experiment with short and long exposures. Have fun with landscape photography and don’t forget to take a tripod along with you!

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A Discussion of Macro Photography

by SFXsource

Close-up photography is also known as macro photography. If you subject is small, you are able to photograph the small details by getting closer. Macro lenses are 1:1 (”life size”). This means that the image of your subject is the same size in real life. Listed below are macro photography tips to help you get started.

1. The first thing you will want to do is research the type of equipment you want. Experiment using the following: a macro filter, close-up lens, a telephoto extender, or a bellows attachment. For those of you just beginning, you may just want to invest in a macro filter.

2. The depth of field for macro photography is different. Choosing a high f-stop number like an F16 or F22 (small aperture) is good. A good portion of your background will not be in focus.

3. Focusing your subject is very important, and you have to be very careful because many times the area you want to be in focus will end up being blurry. You will be using a slow shutter speed, unless you are using very bright lighting.

4. Lighting is another important aspect. Because you will be very close to your subject, there must be sufficient light between your lens and your subject. Ring flashes can be used to avoid this problem.

5. High film speeds will allow you to increase your shutter speed, since you will be using a slow shutter speed. It is recommended to stay at ISO200 or lower.

6. Get out there and photograph a wide variety of subjects. Keep in mind shape and texture. Make sure you have great composition, and be aware of the different colors in the background.

You may want to use a tripod, use a diffuser, or experiment with light balance. It’s important to take your time, but always have fun. Grasses and trees are great subjects.

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Using Photoshop to Make Your Photos Look Great

by David Peters

The popularity of Photoshop among professional designers easily makes it the digital imaging industry standard. The idea that it is, in essence, a brand name that has crossed grammatical barriers makes it a true cultural phenomenon. However, don’t let all this grandeur get in your way if you are an amateur photographers. Photoshop is a powerful tool for anyone who simply wants to make their personal photo collection look better.

Opening Photos With Photoshop Now that you’re getting comfortable with what’s on the screen, it’s time to learn how to get your photo in there so you can start editing! If your photos are in digital format already (i.e. taken with a digital camera), consult the camera’s documentation to learn how to transfer them to your computer. If you have photo prints, you can still edit them with Photoshop! Use a scanner to move the photos onto your desktop. Once the photos are on your computer, group them in a folder. To make it easy, call the folder something simple like “Original Photos.” Then copy the folder’s contents into a new folder. You may want to call this “Edited Photos.” Making this duplicate set of photos to work with means that if you make a mistake at any point in the editing process, you’ll always have an original copy of your photo to go back to. Now start Photoshop by double-clicking on the program. Go to the File menu and select that you want to open an image. Navigate to your “Edited Photos” folder (or to whatever you called it) and choose a photo. Now you’re ready to begin!

Adjust Levels in Your Photos I always recommend you check your photo’s color levels prior to editing. Colors tend to not look quite right when photos are backlit, lit poorly, or overexposed. Sometimes the problem is obvious, yet at other times it’s hard to tell, so I always recommend checking your photo’s levels. Adjusting the colors as your first step will help you make the colors in your photos look their best for later editing. To adjust the levels in your picture click on Edit in the menu bar. Move your mouse to Adjustments > in the drop-down menu and leave the cursor there for a second. In the sub-menu that pops up, choose Auto Levels.

After adjusting the levels you should see a change in the appearance of your photo. It’s okay if you don’t see a noticeable difference. If there is no change it simply means that your photo looked good right from the start. After you have adjusted the levels save your work by hitting Apple + S in Mac OS X or CTRL + S in Windows. As you work with Photoshop you will find there are keyboard shortcuts that you can use for speed up your work; the keyboard shortcut for Auto Levels is Shift + Apple + L on a Mac or CTRL + L on a PC.

Reduce Red Eye in Your Photos Everyone has become a victim to the curse of red eyes in our photos. More photos have been ruined with red eye than silly expressions, closed eyes, and blurred photos combined. Thankfully getting rid of red eye is a snap with Photoshop. To fix red eye we will need to use the Layers Palette. You should be able to find the Layers Palette in the lower right hand corner of the window when you open Photoshop. If you do not see the Layers Palette you can find it by clicking on “Windows” in the menu bar, scroll to Layers, and double check that Layers has a check mark next to it. If it doesn’t, click it once and the Layers palette will appear. Once you have found the layers palette you need to find the adjustment layer button. This button can be found at the bottom of the window. It has a half-black, half-white circle and when you move your mouse over it should have a pop-up box that says “Create new fill or adjustment layer”. To activate it, click on the adjustment layer button. A sub-menu should come up and you will want to select Channel Mixer. Now, a window with the words Channel Mixer should open. To fix the red eye you will want to set the Red slider to 0%, and the Blue and Green sliders to 50%. Once you have done this click OK. You may wonder why the people in the photos look like bluish-gray-skinned phantoms, don’t be alarmed! You haven’t messed anything up, they’re supposed to! You will soon fix this so they look like their regular people again. Set the foreground color to black at the bottom of the toolbar. In the toolbar, select the brush tool. Now, depending on the size of the photos, the red eyes might be too difficult to see; return to the toolbar and select the zoom tool (magnifying glass with a +). Clicking on the eyes with your mouse will zoom in on them. Once you have zoomed in enough so you feel you can comfortably work on the eyes you will need to select the brush tool again. Once again return to the Layers palette. Now you should see a Background layer and a layer called Channel Mixer 1. Select the layer Channel Mixer 1 by clicking it once. Now you can use the brush tool again to paint the parts of the eyes that had appeared red. They should turn red again. Return to the top of your screen click on the Image menu. Just like we did earlier you will need to move your mouse over Adjustments in the drop down menu. Select Invert in the sub-menu that comes up on the right. Tada we fixed the red eye! After all that hard work you definitely want to save your work by hitting Apple + S in Mac OS X or CTRL + S in Windows. You may still see a red ring around the newly-fixed eyes; don’t worry, we can fix that too. You first want to make sure the Channel Mixer 1 layer is selected (click it once). In the main toolbar, make sure the foreground color is set to white. Since it was set to black a second ago, you will have to change it. Again, using the the paintbrush tool from the toolbar, carefully paint the red ring. As you paint you should see the color change to the correct eye color. At the top of the screen, in the menu bar, click Layer. Click on Flatten Image at the bottom of the menu. Save your work by hitting Apple + S in Mac OS X or CTRL + S in Windows.

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The Ultimate Wedding Photography Tips

by Amanda Maseko

The wedding day is probably the top moment for people to try and keep and why not. Digital wedding photography is instant and this is why some people consider the wedding photographer almost as important as the person performing the wedding ceremony.

This isn’t easy; creating that perfect shot if you are taking photographs without help as there is only so much you can do on your own without help. This article highlights a few basic techniques and styles for anyone who wants to capture a friend or family members wedding using a digital camera.

Unless you know how to compensate or have taken the shot purposely for effect; remember the background is very important. Often when there is a good background there are just too many people in the shot, so if this is the situation, just try and capture a nice head and shoulders shot of the couple.

Try to get guests that have spectacles on to either remove them or hold their head at an angle so that there isn’t a reflection obscuring their eyes. If you are shooting into the light, remember to compensate and increase the aperture otherwise the couple (or guests) will appear dark in the image.

Some of the best pictures you will take will be those where the subject(s) do not know the shot is being taken and the best way to do this is by using a zoom lens. You should be alert at all times when shooting digital wedding photography since you can seldom ask people to keep posing for you and the day is also about spontaneity.

Digital cameras rely on two things, memory and power and the last thing you want when you take your shots is to run out of memory or for the batteries to die on you. Professional digital slr cameras start at 6 mega pixels and very few compacts are now below that so your card will need to be a minimum of one gigabyte to be on the safe side.

The higher the resolution you set the better the images will be and the larger they can be printed out. Once you have the images it is only a matter of printing out the ones you want and saving all of them on a CD for a permanent storage or presentation.

Digital wedding photography has become firmly established over the last few years and how successful you are will depend on how much you enjoy the challenge.

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Quick Tips for Black and White Photography

by SFXsource

Color photography seems to be all the rage nowadays, but black and white photography can provide nuance and a certain level of sophistication to your work. Below are quick tips for black and white photography.

1. There are a number of different file formats [negative sizes are listed]: 35mm (1″ x 1″), medium format- 120 (2″ x 2 “), and large format (4″ x 5″). Beginning photographers generally use a 35mm SLR (single-lens reflex) camera. This type of camera lets the photographer view and focus the subject directly through the lens.

2. There are different film speeds for different situations; film speeds are rated by an ASA (American Standards Association) number. For brightly lit subjects, a slow film such as 32 ASA is used; slow film produces fine grain negatives. Outdoor photographers will typically use a medium film speed such as 125 ASA, and that produces medium grain negatives. A fast film speed, such as 400 ASA is best for indoor use, and produces coarse grain negatives.

3. You can control the amount of light entering the lens by changing the aperture. F-stop settings are a measurement of the size of the lens opening. Small F-stop numbers mean a larger lens opening, allowing more light in. Large F-stop numbers mean a smaller opening, allowing less light in. Typical F-stop range: 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22.

4. Lens size is measured in mm and is referred to as focal length. A narrow angle of view is a result of a longer focal length. Conversely, a wider angle of view is a result of a shorter focal length. Lens types and focal length: normal (50mm), wide angle (21-35mm), and telephoto (105-300mm).

5. Exposure time, the time the film is exposed to light, is determined by the shutter speed. Film is exposed to light for a short amount of time with a fast shutter speed. Film is exposed to light for a long amount of time with a slow shutter speed. Shutter speed range: B, T, 2, 4, 8, 15, 30, 60, 125, 250, 500, 1000. Shutter speed time can be determined by placing a 1 over each number so that you get a fraction. If you place a 1 over the 2, that means your shutter speed is a second.

6. The B stands for bulb, and the T stands for time. Bulb means that the shutter will stay open for the amount of time you are pressing the button down. Time will keep the shutter open until you press the button again.

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Macro Photography Tips

by SFXsource

Close-up photography is also known as macro photography. If your subject is small, you are able to photograph the small details by getting closer. Macro lenses are 1:1 (”life size”). This means that the image of your subject is the same size in real life. Listed below are macro photography tips to help you get started.

1. The first thing you have to think about is equipment. You can use a close-up lens, attach a close-up filter to the lens you are already using, use a bellows attachment, or a telephoto extender. If you are just starting out, you may just want to invest in the macro filter.

2. It is important to know that the depth of field is different in macro photography. You will want to use a small aperture (large number: F16 or F22). Note that a large majority of your background will not be in focus.

3. Focusing your subject is very important, and you have to be very careful because many times the area you want to be in focus will end up being blurry. You will be using a slow shutter speed, unless you are using very bright lighting.

4. Lighting is another important aspect. Because you will be very close to your subject, there must be sufficient light between your lens and your subject. Ring flashes can be used to avoid this problem.

5. High film speeds will allow you to increase your shutter speed, since you will be using a slow shutter speed. It is recommended to stay at ISO200 or lower.

6. Have fun photographing a number of different subjects. Be aware of the shape and texture. Keep in mind composition as well as colors in the background.

You can experiment with light balance, use a diffuser, or use a tripod. Take your time with macro photography, and always have fun. Flowers and bugs are great subjects.

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Recovering Your Digital Photos

by David Peters

Digital photographs are something that are important to all of us. Most of the pictures we take happen once in a lifetime, which is why they are so very important. From your child’s first steps to pictures of your family, photographs are very important. As important as they are, nothing is worse than losing them. This can be very traumatic and frustrating, especially knowing that you’ll never to capture the picture again.

Even though it may appear that the camera malfunctioned, all hope isn’t completely lost. There are ways that you can recover your digital photographs, even though you may not be aware of it. Most digital camera’s for instance, use smart cards that will store the information. To be on the safe side, you should always safe your photographs to your card, and transfer them to your computer the first chance you get - then back them up to a CD or DVD.

Sometimes, when you have your photographs on your computer, you may move them to the recycle bin and not even realize it. You can always correct this, by right mouse clicking the recycle bin then choosing to open it up. If the pictures are there, simply drag them to your desktop or right click them and choose restore. This will put them back in the location they were in before they were moved to the recycle bin.

There are other instances where your photographs aren’t this easy to recover. If the card in your camera has become corrupted or if your camera has experienced hardware problems, then it won’t be so easy to recover your pictures. If this is the case, you should always look towards software or professional repairmen. There is software out there that is designed for most types of digital camera problems, and it can normally recover your pictures in the case of malfunction.

With these software and service methods being able to recover almost any type file stored on your camera, you will able to retrieve all medias form video files to JPEG pictures. Since most people transfer their pictures to their computer, data recovery methods are then used to restore photos once they are transfered. For those who have not yet transferred the pictures from their camera, the safest bet for recovering photos is to consult a professional immediately.

Quality photos are only a simple click away as most people today have a digital camera. If you beleive you have lost your photographs, software and professional recovery methods are available to save your photos. Even when disaster should strike, all may not be lost. Knowing there are backup services can help give you peace of mind that your special moments are not lost forever.

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Digital Enhancement for Picture-Perfect Photo Prints

by David Peters

Digital photography is the newest technology in the photo business. Many believe it to be the simplest way to take a picture and improve its overall features. Simply put, digital photography is the method of taking pictures without a need for film. With no film necessary in the practice of taking a snapshot, you can have the ease of keeping the good pictures and eliminating the bad ones. It provides the easiest way of capturing quality images and creating them into works of art.

Digital photography has made much advancement since the digital cameras and computers were first developed. The emergence of digital cameras has generated remarkable conveniences in the field of photography as everyone with a digital camera can take a photo, upload it to the computer and share it with friends and family.

There are many digital photography services available now in the internet. There are several companies that cater services of this sort. Usually, they offer services such as digital imaging, image restoration, photo retouching, and photo editing and digital enhancement. Other digital imaging services are also offered to bring satisfaction to photo hobbyists.

More and more people are using digital cameras for the reason that it’s easy to take picture and edit it according to what you want. Who would not want a picture-perfect shot? However, we have to accept the fact that when you take pictures you don’t always achieve the best shot. This is where digital enhancement becomes useful.

What is digital enhancement? Digital enhancement is the answer to all image quality problems. It’s the best way to improve your snapshot and make it look more attractive. With digital enhancement, you can easily increase the attractiveness of images by simply adjusting the brightness, contrast and sharpness of the image. You are also given the chance to enhance the color balance of the picture. Resizing the image and cropping it at the same time can also be done with ease.

Improving a picture can be done in many inventive ways through digital technologies. Many digital photography services are available online for anyone to take advantage of and many of these are at no cost. Other benefits if going digital are that the digital prints themselves are long lasting in comparison to their traditional predecessors. They are fade-resistant and water-proof. Another advantage of digital is that after taking the shot and the editing, printing photos is simply done with the help of the do-it-yourself printers on the market today. Photo prints printed in this way have demonstrated to be more long lasting, unlike the film-based photography.

Digital enhancement works to an advantage in that you are allowed the chance to prepare your pictures and edit them to maximize the greatest image quality. You can perform photo enhancements with photo editing software or by enlisting the services of a professional digital photography firm. With photo editing software, the image is usually saved in jp or jpeg format. This allows you to upload the images and send them to several websites that offer photo printing services.

An endless number of options are available that can enable you to create the highest quality photo possible through knowing just a few digital photography basics. Take advantage of all that digital photography has to offer. Employ the digital editing and enhancement services that are accessible through some photo printers online for a great photo finish. With these services at available, picture-perfect shots are just waiting on you.

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