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Camera Digital Lenses

Saturday, August 1st, 2009

What lenses do I need for everyday photography?

Executive Summary about : Camera Digital Lenses By  Canon Australia


camera digital lenses

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Having an everyday zoom lens for your digital SLR camera is ideal for capturing holidays, birthdays, family get-togethers and other special moments. These versatile and easy-to-use standard zoom lenses offer crisp and clear shots for beginners or amateurs, but are also handy for the professional photographer when there is no time to change lenses. Standard zoom lenses will cover almost all situations.

Some good options include:

- EF-S 17-85mm. From wide-angle photography to standard snapshots, medium telephoto portraits and even action shots, these lenses are ideal for travelling as they offer a comprehensive range of shooting needs and are extremely lightweight.

- EF-S 18-200m. These lenses let you go back and forth from wide-angle to telephoto photography with ease. Lightweight and compact, the 18-200mm also has a high 11x zoom ratio so you can zoom right into distant action.

- EF 24-105mm. These lenses cover 24mm to 105mm, and are suitable for medium zoom portraiture as well as landscape photography. Clearly, standard zoom lenses can handle a broad range of photographic expression, from impressive wide-angle shots, to standard photography (similar to the perspective of the human eye) as well as telephoto shots.

Because of their versatility and compact size, standard zoom lenses are a must-have accessory for travellers, professional or beginner photographers as they cover most situations and offer stunning image quality.

What lenses do I need for portrait photography?

camera digital lenses

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Portrait photography is all about the subject. Most portrait shots will blur or soften the background so the subject completely dominates the photograph. To achieve this effect, lenses between 50mm and 135mm lenses are often used.

Standard zoom lenses, which usually come together with a camera body, cover this focal length range, and are therefore quite suitable for portrait photography. Sometimes, however, it is necessary to use a large aperture lens with an even greater maximum aperture. In these cases 85mm lenses are the ideal option, especially if portrait photography is a serious pursuit.

Some portrait lenses to consider are:

- EF85mm f/1.2L USM. This medium telephoto lens is the standard portrait lens.

- EF 28-135mm f/3.5-5.6 IS USM. Because these lenses are a standard zoom lens, they are lightweight, extremely versatile and produce high quality images.

- EF 70-200mm f/2.8L IS USM. This is a large aperture telephoto zoom lens that covers landscape, action or sports photography, as well as portrait shots.

Single focal length lenses, like the 85mm, have a brighter maximum aperture than zoom lenses, making them ideal for portrait photography. Because the aperture is wider in these lenses, the depth of field is very shallow. This shallow depth of field softens and blurs the background, which is characteristic in portrait photography on your EOS digital SLR camera.

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Canon SLR Digital Cameras

Tuesday, July 7th, 2009

Canon SLR Digital Cameras : Canon EOS 1D Mark III Digital SLR Camera Review

Executive Summary about : Canon SLR Digital Cameras By Philip Ryan

canon slr digital cameras

canon slr digital cameras

The Canon EOS 1D Mark III is all about speed - quickly capturing great shots of fast-moving subjects in even the toughest circumstances.

Canon’s EOS 1D Mark III offers a luxurious cocktail of high-resolution, extremely low noise, blazingly fast burst shooting, abundant customisation, and a build quality and ergonomic design among the best you’ll find in today’s camera market.

If you’ve ever looked at the sideline of a major sporting event and seen a gaggle of huge white lenses, then you’ve witnessed Canon’s dominance in the sports shooting world. Add to that this camera’s amazingly low noise, high-end build quality, and vast custom-function menu, and you’ve got one of the hottest cameras to hit the market this year.

Design

It still has a built-in vertical grip, with duplicate shutter and control buttons, so you don’t lose functionality when changing grips. Menu and Info buttons move above the screen, while the playback button drops to below. The Select button from the Mark II N is now obsolete, thanks to the Mark III’s Set button, which is mounted in the middle of the large scroll wheel, much like the scroll wheels found on the EOS 30D and 5D.

Canon does place the exposure compensation button a little too far to the left, but since the large scroll wheel doubles as exposure compensation in Aperture- and Shutter-priority modes, it wasn’t a problem for me. Our biggest control complaint is that Canon didn’t clearly mark a hard button for white balance.

While the Mark II N used button combinations for bracketing, drive mode, and ISO, the only combo that remains in the Mark III is for bracketing. Drive mode gets doubled up with the AF button, with the two split between the small scroll wheel behind the shutter and the large wheel on the camera’s back.

If you’re the type that likes to change your focusing screen, you’ll like the fact that Canon offers 11 different kinds of optional focusing screens for the 1D Mark III. Like its predecessor and big sister 1Ds Mark II, the Mark III includes numerous rubber gaskets to keep dust and moisture out of the camera.

Features

At the heart of this camera you’ll find a newly developed 10.1-megapixel Canon CMOS sensor. Like all other 1D cameras to date, the sensor is APS-H-sized (28.1 X 18.7mm), which gives the Mark III a 1.3x focal-length multiplier.

Whenever you turn the camera on or off, the camera vibrates the IR-cut filter to shake away any dust that may have settled on it. To process the data from the sensor, the camera uses a pair of Canon’s Digic III processors, making it the first dual-processor camera that I’ve ever seen.

Instead of the 12-bit analog-to-digital converters found in Canon’s other cameras, the Mark III uses 14-bit converters, which theoretically allow for more tonal gradations than their 12-bit brethren. A dedicated AF processing unit drives the camera’s 45-point autofocus system, which includes 19 cross-type points. For comparison, both the EOS 5D and 30D sport only one cross-type point, while Canon’s 16.6MP 1Ds Mark II has a mere seven cross-type points. Cross-type AF points provide a higher level of sensitivity than standard points.

Exposure metering options are just as sophisticated as the AF system. The camera uses a 63-zone through-the-lens (TTL) metering system that offers full-frame evaluative metering, centre-weighted average, and partial and spot metering. Canon calls this last option “multispot metering.” In our field tests, the 1D Mark III yielded remarkably accurate exposures and was rarely fooled by tricky scenes, but the 3D colour Matrix Metering found in Nikon’s D2Xs — with its 1,005-pixel sensor and onboard database of comparison image data - barely  edges out the 1D Mark III’s system when it comes to very tricky situations. If you’re really worried about highlights, though, you can activate the Mark III’s Highlight Tone Priority custom function, which extends the upper portion of the dynamic range to help preserve highlight detail.

Including the one mentioned above, the Canon 1D Mark III has 57 custom functions. If you own a previous 1D series camera, don’t assume that the number-labels of specific custom functions will be the same on the 1D Mark III. Canon officially joins the live-view SLR revolution with the 1D Mark III, which lets you frame images with the big 3-inch LCD on the back of the camera instead of the optical viewfinder, should you choose to do so. Canon also warns that increased temperatures can lead to increased image noise.

As usual, along with this new SLR comes a new version of Canon’s Digital Photo Professional software for RAW processing. If you prefer to use Adobe’s Camera Raw plug-in with Photoshop, you may be as irked as we were to find out that Adobe forces you to upgrade to Photoshop CS3 or Photoshop Elements 5.0 if you want to use the latest update, which includes the 1D Mark III as well as Fuji’s FinePix S5 Pro, Nikon’s D40x, Olympus’ E-410 and SP-550 Ultra Zoom, and Sigma’s SD14.

Performance

When shooting Raw, the camera took 0.5 second between shots. Shutter lag measured 0.4 second in our high-contrast test, which mimics bright shooting conditions, and 1.1 seconds in our low-contrast test, which mimics dim shooting conditions.

Continuous Shooting basically lived up to Canon’s 10-frames-per-second claim. After a full weekend of shooting many hundreds of shots in Raw+JPG mode, the battery hadn’t even drained halfway. The charger that comes with the Mark III can charge up to two batteries at once, though only one battery comes with the camera.

Image Quality

Images shot with the Canon EOS 1D Mark III can be absolutely stunning. Colours look extremely accurate, and the automatic white balance does an excellent job of neutralising colours under a variety of lighting situations. If paired with a sharp lens, the 1D Mark III can produce images with a vast amount of fine detail.

  • Good: Extremely fast, 10-megapixel continuous shooting | Very low noise | Highly customisable | Well-designed body with weather sealing | 3-inch LCD | Abundant optional accessories
  • Bad: Heavy | May be a bit too large for people with small hands

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Photography Software

Wednesday, June 24th, 2009

Photography Software : Top 5 Free Photography Software Editors for Windows

Executive Summary about : Photography Software  By www.basic-digital-photography.com

Digital Photography Software

Software especially for enhancing, correcting, manipulating, organizing, printing, sharing, and using your digital photos in creative ways. These products are primarily for manipulating images and most have limited image creation tools and features.

If you’re really on a budget, you will be glad to know that there are many free photo editors out there ready for your download. These programs give you basic image editing features to perform standard photo enhancement tasks. I’ve compiled a list of 5 free photo editing programs for Windows which you may like to look at. These are quality programs which give commercial ones a serious run for their money.

Do take note, however, that some of these programs may be limited in features unless you buy an upgrade version.

1. The GIMP

The GIMP (GNU Image Manipulation Program) is an open-source program originally developed by two university students in 1996. It has now morphed into a powerful image editor with a huge user base. The latest version, the GIMP 2.0, has a revamped user interface that places it up threw with mainstream image editors.

Gimp Free Photography Software

Gimp Free Photography Software

2. Picasa

Picasa is a powerful and free software that helps you instantly find, edit and share all the pictures on your PC. If you always had problems keeping track of your pictures, Picasa will help you do that by sorting them into visual albums. Moreover, if you want to quickly touch up your photos, Picasa offers many one-click fixes to do just that. What’s more, the program allows you to easily share those photos through email, printing or CDs.

Picasa Free Photography Software

Picasa Free Photography Software

3. VCW VicMan’s Photo Editor

VCW VicMan’s Photo Editor has a host of features similar to Adobe Photoshop. With this program, you can easily zoom into and pan within your image and perform standard image editing. The color adjustment options are also very extensive. The program comes in a limited free version, as well as a commercial Pro version which sells for $30.

VCW Vicman Free Photography Software

VCW Vicman Free Photography Software

4. ImageForge

ImageForge is a freeware image editor gives you a great set of tools for painting and editing images and photos. Whether you want to touch up your photo shots, or add a creative effect to a boring photo, ImageForge can provide you with the tools to do it. You can even share your photos easily by creating photo albums and simple slide shows.

Image Forge Free Photography Software

Image Forge Free Photography Software

5. Paint.NET

Paint.NET is an on-going project at Washington State University, with features that match commercial applications, including support for layers. It is provided as freeware and is readily available for download. Besides standard image editing features, there’s also a special Effects API for you to create your own special effects. The program also has a strong user forum that supports its progress and development.

Paint Net Free Photography Software

Paint Net Free Photography Software

Conclusion

I hope you’ll learnt a thing or two about the best free photo editors for Windows. Using a free photo editor is a great way to save money, while satisfying all your photo manipulation needs. However, I do advise that for serious, long-term photo editing tasks, go for commercial grade software such as Ulead PhotoImpact  and Paint Shop Pro.

Agus Mardiana says :

I use Photoshop CS 2 for my self. They are great powerful tool for editing my digital cameras images.

Download Links to your Free Photography Software Editors for Windows


The GIMP

Picasa

VCW VicMan’s Photo Editor

ImageForge

Paint.NET

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