Nikon 50mm f/1.8D AF Nikkor Lens for Nikon Digital SLR Cameras

!±8±Nikon 50mm f/1.8D AF Nikkor Lens for Nikon Digital SLR Cameras

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Post Date : Jan 28, 2012 07:16:04
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Nikon 50mm f/1.8D AF Nikkor Lens for Nikon Digital SLR Cameras

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A Review Of The Canon PowerShot SX40 HS

!±8± A Review Of The Canon PowerShot SX40 HS

Looking for a great, high megapixel camera that will meet practically all of your everyday photography needs? Well, look no further than the Canon PowerShot SX40 HS. This camera looks great and you could mistake it for a D-SLR camera. What's really incredible about the SX40 HS is its long 35x zoom range, coupled with that 12-megapixel camera resolution. Yes, you read that right - a 35x zoom range - which translates to a very powerful camera with telephoto reach. Read on and find out more about it.

1. Design and Construction
What does the SX40 HS look like? Well, as you can see from the picture, the unit itself is neither compact nor light. Its dimensions are 3.6 by 4.8 by 4.2 inches (HWD) and it weighs in at 1.3 pounds. It's competitor, the Nikon Coolpix P500 is slimmer and lighter by comparison.

The Canon PowerShot SX40 HS comes with a metal body with a few plastic elements. I like the fact that there's a very deep handgrip which lets you hold the camera firmly. Throw in the SX40's optical stabilization system and it means you can get a sharp photo at the extreme end of its zoom range. I tried zooming almost 35x on the SX40 HS, without a tripod or monopod, and my pictures still came out pretty good and sharp.

2. Optics and Resolution
When it comes to long range zoom, very few non-digital SLR type cameras can match the Canon PowerShot SX40 HS. The 35x zoom range is better than many digital SLRs equipped with telephoto lenses and is certainly one of the selling points of the camera.

With its 12 megapixel resolution, you'd expect that photos taken with the SX40 HS to be exceptionally sharp. Incidentally, I got to know about the Imatest software suite - which can be used to measure cameras' performance in terms of image sharpness and noise. So here's what I did - to evaluate sharpness, I shot several photos of a test chart and analyzed them using a center-weighted algorithm. The SX40 HS averaged 1,836 lines per picture height, which surpasses the 1,800-line benchmark that qualifies an image as being acceptably sharp.

I've tried many cameras in the past, including the Kodak EasyShare Max Z990 which packs a 30x zoom lens, records a slightly higher 1,946 lines. So in terms of image sharpness, the SX40 HS is not the best - but I think its other features more than make up for that.

3. User Controls
Many cameras have very obscure or weird control placements. The Canon PowerShot SX40 HS doesn't have this problem. There are ample control buttons on the SX40's body - a top-mounted dial lets you change between shooting modes, and there's a neat rear four-way jog wheel to scroll through menus, adjust ISO, set exposure compensation, activate the self-timer, and so forth.

The Canon designers obviously got the design of the menu system correct. In fact, the Canon SX40 HS menu system is one of the best I've seen around - comparable even to the top end DSLR cameras. You can quickly access most of the common controls you'd encounter in a digital camera, without having to click all around menu after menu. I also like the fact that the SX40's pop-up flash is manually operated. All I need to do is flip it up when you'd like to use it. Enthusiasts who want a better flash can fit in units like the Canon Speedlite flash, using the dedicated hot shoe.

4. Battery Life
The Canon PowerShot SX40 boasts a very good and long lasting battery life. I could be outdoors shooting photos like no one's business and the battery would still be OK. This contrasts strongly to some of the older Canon cameras I have, where the battery just dies on you when you're lining up for a very important shot.

5. Storage and Transfer
OK, the Canon PowerShot SX40 HS supports all manner of media cards - Secure Digital, Secure Digital High Capacity and Secure Digital Extended Capacity. The camera records 1080p24 QuickTime video - which in my opinion, looks quite good. To copy photos and video into your PC, you can plug the camera into your computer via mini USB to copy the files. Alternatively, you can connect the camera to an HDTV via mini HDMI. My family loves to do that - plug a digital camera to a huge TV and enjoy the photos and video.

6. Shortcomings
I feel that the Canon PowerShot SX40 HS is a great camera - but it falls short in a few areas. For one thing, the camera isn't cheap! And although it has a powerful 35x zoom lenses, I could tell that it's performance in low light is not so good - especially compared to its competitors like the Nikon Coolpix P500, which captures clean images in as little as one quarter the light as the SX40.

Conclusion
All in all, the Canon PowerShot SX40 HS is a great camera with a powerful 35x zoom range. It has a host of innovative features which allow you to take picture after picture with ease. The quality of the photo shots are way above average and is certainly one of the better digital cameras in its class. Do check it out!

A Review Of The Canon PowerShot SX40 HS

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Digital SLRs: Why are so many People going to Digital Single Lens Reflex (dSLR) Cameras?

!±8± Digital SLRs: Why are so many People going to Digital Single Lens Reflex (dSLR) Cameras?

As the digital bandwagon makes its way around the world, we are seeing its tracks touch almost every part of our daily lives. From digital chips in automobiles, coffee makers, telephones, televisions and credit cards, one of the most booming industries the digital era has revolutionized is photography.

While film-based SLRs have been around for nearly a century, digital SLRs have only been around for about a decade. Once a luxury and strictly for the professional crowd, digital SLRs have evolved into a camera that today is being picked off the shelves by amateurs and advanced hobbyists. This change has been brought on by falling camera prices, better picture quality and increased capabilities of these cameras.

But why SLR?

Today's digital SLRs have the best of both worlds: these cameras can morph from a full manual camera to a point-and-shoot camera with a turn of a dial. They often sport higher mega-pixel image sensors, interchangeable lenses, more on-board functionality, beefier and more durable bodies, faster shutter speeds and instantaneous response from the camera once the shutter button is pressed than standard point-and-shoot digitals.

If you're accustomed to the point-and-shoot cameras of today, there are a few things you'll probably miss with a dSLR. To accommodate interchangeable lens mounts that are backwards compatible with older lenses, to allow for larger image sensors and to mimic the feeling of traditional SLR cameras, dSLRs are generally much larger than point-and-shoot cameras. While there are many pluses for having a larger body, tourists and those hoping to stay inconspicuous may want to stay with the small confines point-and-shoot cameras.

Another drawback of dSLR cameras compared with point-and-shoot cameras is that there is no live preview on the rear screen. dSLRs lack this for two reasons: first, there is a shutter and a mirror blocking the path of light from the lens to the image sensor; secondly, more and more of today's dSLRs are using CMOS image sensors (which are less expensive to manufacture and take less energy to use compared to its CCD rival) do not offer a way of having a live preview due to the inability to map pixels into a matrix.

So while dSLRs may not be for those who need live previews or small camera bodies, their capabilities are much greater than point-and-shoot cameras -- at a price.

Digital SLRs: Why are so many People going to Digital Single Lens Reflex (dSLR) Cameras?

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