Comparison SLR - Rebel XSi, D40, D90 and EOS 40D

There are tons of digital SLR cameras available that have promising potential, making it difficult for some consumers to limit their choices and choose the one that best suits their needs. So the choice a little 'easier for potential buyers of the camera, we will see four of the most popular digital SLR: The Rebel XSi, Nikon D40, Canon EOS 40D and Nikon D90.

Canon EOS Digital Rebel XSi

The Digital Rebel XSi measures approximately 12 cm to the body with a weight of 16.8Oz The shutter speed is 1 / 4000 s and has a speed of 3.5 frames per second of recording. How did other digital SLRs, the Canon EOS Digital Rebel XSi with kit lens image stabilization and a built-in sensor cleaning system. In addition to the meter, nine-point autofocus and spot the mirror block, the Rebel XSi is supplied with software and 35 powder measure fields. The ISO range from 100 to 1600. Another great feature of the Rebel XSi Auto Lighting Optimizer, which improves the shadowDetails and highlights. You can also choose to get the depth and wireless auto flash option available with the camera at a distance.

Nikon D40

Among the features, the Nikon D40, which has a permanent place in Article SLR comparison are as follows: 1/4000-second closing time, nine different programs and ways to change settings in the camera and flash sync 1 / 500-second. The D40 comes with built-in help file to make it easier for userseven with the camera. The D40 is equipped with TTL-flash mode and color matrix metering system. The ISO range 200-1600, so that different users ISO options, depending on the type of shots you intend to take. The D40 weighs 17 grams, has a speed of 2.5 fps shooting capability and comes with optional wireless remote.

Canon EOS 40D

The Canon EOS 40D has a rugged magnesium alloy case that the camera makes it less susceptible to damage from weathering. Thehas a shutter speed of 1 / 8000 sec, 6.5 fps shooting speed and flash sync 1/250-second. Size 10.13 cm, the Canon EOS 40D scores with Live View LCD with optional grid overlay. As with other digital SLR, the EOS 40D is the software integrated sensor cleaning and dust removal. Among other things, mirror lockup, 9-point autofocus, Spot, Highlight Tone Priority, ISO range from 100 to 1600, and six programWays.

Nikon D90

The Nikon D90 can not focus and the mirror lock-setting, but the child has a capacity of 12.33 inches video with monaural sound, 24 frames per second video capture and support for the following formats: VGA, QVGA and HD. For still images, but the D90 has 4.5 frames per second shooting speed, ISO range of 100-6400, spot metering, auto focus and 11 customizable settings. The D90 sells for a street price of $ 1,120.

Waterproof Digicam Comparison - Canon D10 Vs Panasonic Lumix DMC-TS1

Canon and Panasonic has announced their first shock and water-proof compact camera early this year. If you are still confused which camera is best for you, here you will find some useful information and comparison between the Panasonic Lumix DMC-TS1 and Canon PowerShot D10.

Both the cameras are waterproof, but if you want a camera that can work around 10 meters underwater, then Powershot D10 would be your best shot. The submarine shaped D10 with its porthole-like screws and bulbous shell expresses that this digital camera is purely made for underwater. But on ground, you won't like its bulky form. D10 has easy-to-press buttons and a large LCD screen where icons are big and nice, you still can see it quite clear even underwater. Additionally, it contains bigger screw-mouths on every corner for mounting the camera in various underwater grips.

While other waterproof digicam, Panasonic Lumix DMC-TS1 can be used up to 3 meters only underwater with a completely different approach. The sleek rectangular slab outline has made it hard to distinguish from usual non-tough cams. Compare to Canon D10, the buttons are smaller and shooting modes can be selected by a thumb dial rather than a dedicated button. Even So, you will lose usability underwater with TS1, it will perform better on land and you must consider that.

Another big difference is that the Panasonic TS1 shoots in the AVCHD format at 720p, where D10 only does VGA videos of 640×480. But the video recording mode of TS1 is not the most polished one, there is a two to three seconds of delay from hitting the dedicated video button to starting and stopping the video and its quite unclear when exactly everything does start. If you are ok with that delay, you will surely love the outstanding HD video mode. Lumix DMC-TS1 is currently seeing a big bug when importing the taken video into iMovie. The featured AVCHD format of TS1 is quite annoying and you might require installing particular codec to import video into your preferred video editing software and then convert it into friendly formats.

Both toughcams are featuring 12-megapixel shooting and have the same CCD sensor size. But the ISO of TS1 goes up to 6400 when it is only 1600 for D10. A difference that really matters is the wider-angle lense of TS1, which is an effective focal length zoom of 28mm-128mm f/3.3-f/5.9, where D10 is only 35mm-105mm f/2.8-f/4.9. Color reproduction through the Leica lens of TS1 is far better than that of D10. Moreover, the TS1 lean to autofocus underwater with greater ease in comparison with D10.

Just In Case you are not a professional scuba photo shooter, the benefits of toughcams can also be figured when you are making your kid's bath time photos without worrying about getting your camera wet or shooting with unclean hands while you are in the middle of a barbecue, or anything like that. Whatever happens, you will always can wipe your digital camera clean from water. So the conclusion is, if you care about form factor, you should go with Panasonic Lumix TS1, Powershot D10 will be tough to fit it into a pants pocket without some serious bulging. But if you usually go deeper than 3 meters underwater, you should go with Canon D10.

Kelly is a freelance writer for multiple niches on the internet. Her website http://www.mitub.com is about product reviews. To find more information about both waterproof digital cameras, you can find it here: Canon D10 vs Lumix DMC-TS1

All Those Megapixels - A Digital Camera Resolution Comparison

Image : http://www.flickr.com

Are you thinking of buying a new digital camera? Are you confused by all the choices in camera resolution? Is the megapixel rating the most important factor you should consider in buying a digital camera? How many megapixels are enough? Is there such a thing as too many megapixels? How do megapixels and digital camera resolution compare to film camera resolution?

To put it simply, resolution is the amount of detail that your digital camera records of an image. A digital image is made up of pixels. For digital cameras, the number of pixels is measured just like your computer monitor. As digital camera resolutions have gotten higher, w will e now multiply the horizontal and vertical values for one total value, which is usually rounded out to the megapixel count. Some of the first digital cameras had resolution of 480 x 640 pixels. This is the same number of pixels in the computer monitor standard VGA. Multiplying 480 x 640 would end up with a resolution of about .3 megapixels. This was touted by the digital camera industry as photo-quality, but it is far from it. Most web cams support this resolution.

Next up in computer monitor resolution is SVGA or 600 x 800. This works out to about .5 megapixels. Still not there.

Currently, one of the most popular computer monitor settings is 1024x768. This is still less than one megapixel, it is also the resolution that we first saw consumer digital cameras at. This is also a common resolution for video projectors. The one megapixel digital cameras have a resolution of 1280 by 960. If you were to make a 4 x 6 print from an image this size, it might compare in quality to that of an old 110 camera, or APS camera.

When we reach the two megapixel mark, or resolution of 1600 x 1200, you can get a fairly nice print. This gives you a print size of 4 x 6 at not quite 300 dpi. However, when you make a photographic print much larger than 4 x 6, you'll be able to see the individual pixels or notice the lack of detail.

In a digital photographic print, 300 dots per inch is considered the standard for small prints. Some photographic printers print at less than 250 dpi. Some a little bit more than 300 dpi. While there is little bit of leeway here, digital prints at 300 dpi will appear to have the same detail that a print made from a 35mm negative would if it were printed traditionally. This is especially important for smaller print sizes that will be viewed close-up. As we go to larger print sizes, the distance the print will be viewed from is also likely to increase. From a farther distance the eye cannot see the detail, and so the print still looks good.

A 3 megapixel camera will have a resolution of about 2048 x 1536. It is still far below that of good 35mm negative. It is not till we reach a little bit over five megapixels that digital starts to compare to 35mm in detail. A 5.3 megapixel camera has a resolution of about 3008 x 1960.

A good six megapixel camera can surpass 35mm quality in detail. This works out to just about 300 dpi in an 8 x 10 print. Since 35mm has been accepted level of quality for so long, this is the resolution I recommend people start looking at for a digital camera. The six megapixel camera will provide the same level of quality (maybe a little bit better) that your old 35mm camera gave you. A 6.3 megapixel camera has a resolution of about 3088 x 2056.

What about seven and eight megapixel cameras? An eight megapixel camera approaches the quality of the professional medium format camera. It is interesting to point out that many of the seven megapixel cameras came out after the eight megapixel cameras were introduced. It has been suggested, the reason for this is because the first generation of eight megapixel point-and-shoot cameras had a problem with noise. This was caused the small sensors used in digital point-and-shoot cameras. This problem is largely overcome now, and did not apply to the larger digital single lens reflexes. While an eight megapixel camera will provide a little bit extra information in case you want to crop up in a, since few people ever make a print larger than 8 x 10, much of this extra information is wasted. I do not recommend that the average person purchase a digital camera resolution higher than eight megapixels.

Digital cameras with resolutions of 10 to 13 megapixels are well in the quality range of good 120mm professional cameras. They create huge file sizes that require significant computer resources to work with. A 13 megapixel camera will only get approximately 55 images on a 1 GB memory card in RAW format. This makes saving and archiving images more expensive and time-consuming. There are professional digital camera systems with resolutions of 20,40, and even a hundred megapixels. Only a professional would have need of images with this high a resolution.

To summarize, I suggest that almost anybody will be happy with a camera with a six megapixel resolution. If you're really on a budget you can go down as low as five megapixels and still have detailed pictures at the sizes you're most likely to have prints made. If you're an advanced shooter or hobbyist you'll enjoy the extra room that an eight megapixel camera will give you. If you're a professional, you need a camera resolution appropriate to the job at hand.

To put it simply, resolution is the amount of detail that your digital camera records of an image. A digital image is made up of pixels. For digital cameras, the number of pixels is measured just like your computer monitor. As digital camera resolutions have gotten higher, w will e now multiply the horizontal and vertical values for one total value, which is usually rounded out to the megapixel count. Some of the first digital cameras had resolution of 480 x 640 pixels. This is the same number of pixels in the computer monitor standard VGA. Multiplying 480 x 640 would end up with a resolution of about .3 megapixels. This was touted by the digital camera industry as photo-quality, but it is far from it. Most web cams support this resolution.

Next up in computer monitor resolution is SVGA or 600 x 800. This works out to about .5 megapixels. Still not there.

Currently, one of the most popular computer monitor settings is 1024x768. This is still less than one megapixel, it is also the resolution that we first saw consumer digital cameras at. This is also a common resolution for video projectors. The one megapixel digital cameras have a resolution of 1280 by 960. If you were to make a 4 x 6 print from an image this size, it might compare in quality to that of an old 110 camera, or APS camera.

When we reach the two megapixel mark, or resolution of 1600 x 1200, you can get a fairly nice print. This gives you a print size of 4 x 6 at not quite 300 dpi. However, when you make a photographic print much larger than 4 x 6, you'll be able to see the individual pixels or notice the lack of detail.

In a digital photographic print, 300 dots per inch is considered the standard for small prints. Some photographic printers print at less than 250 dpi. Some a little bit more than 300 dpi. While there is little bit of leeway here, digital prints at 300 dpi will appear to have the same detail that a print made from a 35mm negative would if it were printed traditionally. This is especially important for smaller print sizes that will be viewed close-up. As we go to larger print sizes, the distance the print will be viewed from is also likely to increase. From a farther distance the eye cannot see the detail, and so the print still looks good.

A 3 megapixel camera will have a resolution of about 2048 x 1536. It is still far below that of good 35mm negative. It is not till we reach a little bit over five megapixels that digital starts to compare to 35mm in detail. A 5.3 megapixel camera has a resolution of about 3008 x 1960.

A good six megapixel camera can surpass 35mm quality in detail. This works out to just about 300 dpi in an 8 x 10 print. Since 35mm has been accepted level of quality for so long, this is the resolution I recommend people start looking at for a digital camera. The six megapixel camera will provide the same level of quality (maybe a little bit better) that your old 35mm camera gave you. A 6.3 megapixel camera has a resolution of about 3088 x 2056.

What about seven and eight megapixel cameras? An eight megapixel camera approaches the quality of the professional medium format camera. It is interesting to point out that many of the seven megapixel cameras came out after the eight megapixel cameras were introduced. It has been suggested, the reason for this is because the first generation of eight megapixel point-and-shoot cameras had a problem with noise. This was caused the small sensors used in digital point-and-shoot cameras. This problem is largely overcome now, and did not apply to the larger digital single lens reflexes. While an eight megapixel camera will provide a little bit extra information in case you want to crop up in a, since few people ever make a print larger than 8 x 10, much of this extra information is wasted. I do not recommend that the average person purchase a digital camera resolution higher than eight megapixels.

Digital cameras with resolutions of 10 to 13 megapixels are well in the quality range of good 120mm professional cameras. They create huge file sizes that require significant computer resources to work with. A 13 megapixel camera will only get approximately 55 images on a 1 GB memory card in RAW format. This makes saving and archiving images more expensive and time-consuming. There are professional digital camera systems with resolutions of 20,40, and even a hundred megapixels. Only a professional would have need of images with this high a resolution.

To summarize, I suggest that almost anybody will be happy with a camera with a six megapixel resolution. If you're really on a budget you can go down as low as five megapixels and still have detailed pictures at the sizes you're most likely to have prints made. If you're an advanced shooter or hobbyist you'll enjoy the extra room that an eight megapixel camera will give you. If you're a professional, you need a camera resolution appropriate to the job at hand.

Comparison of Best Digital Cameras

The very first thing that a person does when he decides to buy something new is reading up the reviews about it. In case of the electronic appliances, this becomes a necessity though. For, without reading up the reviews, you will not be able to decide whether this particular item will suit your needs well or not.

When ever you move on to buy a new digital camera, it is perfect for you to read up the best digital camera reviews.

When you enter the market and see a wide array of models and brands of digital cameras, it can be quite frustrating for you. With hundreds of choices that are available in the market, they often confuse the buyer rather helping him. But if you read up various digital camera reviews, they can clarify the most of your doubts.

The reviews will compare and analyze the different camera options and features. They can also give rating regarding how each camera stands in front of other similar models in the market. You can also read the digital camera reviews on their brochures and web pages.

There are many points that you should look for in a best digital camera review. There is no point in believing the reviews word by word. It is always beneficial to be a little cautious while you make your decision based on these reviews. It is important for you to trace authentic reviews.

An effective review of the best digital cameras should include two things at least: First, the features and specialties of the camera and secondly the performance ratings. The specialty sheets and performance ratings of the cameras are many, but in order to compare the digital cameras efficiently, the review should set some guidelines on mandatory basis.

The best reviews help you in taking decisions on many grounds. They tell you how you should use your digital camera. They should give you all the genuine set of information about the size and quality of the final prints and the necessary features of the digital camera. All the features of the camera should be written in the review and then it should be ranked, according to its quality and standards.

If you are looking for a durable snapshot or professional camera, you should scan all the relevant reviews. Before reading the review you may have many cameras in your mind. But as you go on reading the reviews, you can narrow down your choices to just a few cameras. Going further, your choice should come down to your final digital camera.

Even the minor differences in the design of the digital camera can be significant when you will bring it to use on the daily basis. The review that you are reading should carefully compare not only the design elements and performance of the digital cameras but also the size, body configuration, weight, knobs, location of buttons and all the other controls of the camera. You should be able to decide after reading the review that a particular camera will be a joy to use for you or will be a pain in neck.

The evaluation of the reviewer of the digital camera should be critical. Moreover, you should read up as many reviews as possible and then make your decision.

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