Friday, August 9, 2013

Nikon D7100 vs. Canon 70D

By Simon Crisp

Nikon D7100 vs. Canon 70D
Nikon D7100 vs. Canon 70D

When the Canon EOS 70D was announced, it wasn't just as a replacement for the aging 60D, it was also as a direct response to Nikon's D7100. Both cameras use APS-C sensors and are aimed squarely at enthusiasts with better build quality and more features than entry-level models. Let's take a look at how the two cameras stack up against each other.

Size / Weight

Canon 70D vs. Nikon D7100 - Size and Weight
Both cameras are exactly what you'd expect for enthusiast-focused DSLRs. While larger and heavier than entry-level DSLRs, they'll be a lot more comfortable to carry around than professional models. There's so little to call between the two in terms of size or weight, that it's going to be more about how they feel in your hands.

Megapixel Count

Nikon D7100 vs. Canon 70D - Megapixels
With 24.1 megapixels, the Nikon D7100 has the advantage over the Canon 70D. However, its 20.2 megapixel count is more than enough for most photographers, unless they are planning on printing their images very large or cropping heavily.

Autofocus

Nikon D7100 vs. Canon 70D - Auto focus
At first glance the Nikon D7100 appears to have the edge with a 51 point focus system, with 15 cross-type. But the Canon isn't far behind as all of its 19 focus points are cross-type. Then there's the little matter of its Dual Pixel CMOS AF, this makes the 70D much faster and smoother when shooting video with autofocus, and even improves focus speed when shooting stills in live view.

FPS Burst Rate

Nikon D7100 vs. Canon 70D - Burst rate
Both cameras are capable of more than respectable continuous burst rates. The Canon is the slightly quicker of the two with its seven frames per second, but the Nikon isn't far behind with six frames per second.

ISO Range

Nikon D7100 vs. Canon 70D - ISO
While the Canon 70D has the wider ISO range, covering 100-12,800 to the Nikon's 100-6,400, you really need to ask yourself whether your will be using the higher settings anyway. Yes it can be handy to know you can get a shot in dark conditions, but once you get past a certain ISO level, images are always going to suffer from noise levels and loss of colors.

Viewfinder / LCD

Nikon D7100 vs. Canon 70D - Viewfinder
When you look through the optical viewfinder of the Nikon D7100 you are going to see the exact framing of the image you are taking thanks to its 100 percent coverage. Meanwhile, the Canon 70D has 98 percent coverage, meaning your resulting photograph will always be that little bit wider than what you see in the viewfinder.
While the LCD monitor of the 70D is smaller and has a lower resolution than that of the D7100 (3 inches with 1040K dots compared with 3.2 inches and 1229K dots) it more than makes up for this. Its vari-angle ability means it can be easier to compose shots in awkward positions, and it's also a touchscreen, which gives users a different way to navigate menus and take shots.

Storage Media / File Types

Nikon D7100 vs. Canon 70D - Media
SD memory cards are the storage media of choice for both cameras and both are UHS-I compliant, meaning they can work with faster cards. However, the Nikon has the ability to take two cards while the Canon only has one slot. This can be useful not just to know you've got extra storage at your disposal, but to backup shots on the second card, or to shoot RAW files on one and JPEG on the other, or even stills to one and video to the other.
Both cameras shoot both JPEG and RAW stills, but the Canon 70D has the option of shooting different size RAW files which could be useful if you want to reduce storage size and don't mind giving up a little in image quality.

Construction

Nikon D7100 vs. Canon 70D - Build
Though you're not going to be using them to hammer in any nails, both cameras are well constructed and feel a lot more sturdy than entry-level DSLRs in your hands. The Nikon features magnesium alloy covers while the Canon opts for aluminum and polycarbonate.
Nikon says the D7100 offers a level of weather and dust sealing equivalent to that of the professional Nikon D800, which means it can be safely used in a range of weather conditions. Canon is typically a little more coy about the weather sealing of the 70D.

Video Modes

Nikon D7100 vs. Canon 70D - Video modes
On paper the D7100 and 70D are both capable of shooting Full HD video (1080p) at 30/25/24 fps and 720p at 60/50 fps. However, if you're going to be using autofocus when recording video it's worth remembering the Dual Pixel CMOS AF of the Canon as it should vastly improve resulting footage.

Wireless Options

Nikon D7100 vs. Canon 70D - Wireless
More and more cameras are gaining wireless capabilities, for things like copying images to smartphones or tablets and remote shooting, and this pair are no exception. Where they differ is that the Canon has all of this wireless goodness built-in, while the Nikon requires an optional WU-1a wireless adapter. In addition to the extra cost, this also means you have to plug in the adapter whenever you want to use the wireless functions.

Kit Lens

Nikon D7100 vs. Canon 70D - Kit Lens
The Nikon D7100 is frequently bundled with a 18-105mm f/3.5-5.6G ED VR lens, while the 70D can come with a 18-135mm f/3.5-5.6 IS. While both lenses offer image stabilization, and variable aperture, the Canon has the advantage with its extra focal length reach making it more versatile.

Lens Mount

Nikon D7100 vs. Canon 70D - Mount
The cameras each take the lenses you'd expect from their respective manufacturers with the D7100 using the standard Nikon F-mount and the Canon the EF mount.

Price

Nikon D7100 vs. Canon 70D - Price
Both cameras come in at US$1,200 body only, with the kit lenses raising the Nikon to $1,600 and the Canon to $1,550.

Wrap-up

While we recommend that prospective buyers shoot these cameras them side by side, this spec comparison provides a good starting point for those in the market for an enthusiast-level DSLR. Nikon and Canon seem to be taking these models in different directions compared to their predecessors (the Nikon D7000 and Canon 60D).
Nikon is sticking to what it does best, with the D7100 it's produced a quality DSLR which is designed to make it easy to take quality images. For photography purists it arguably has a slight advantage over the 70D because of its higher resolution and better autofocus system.
However, taking photos is only part of what modern DSLRs are called upon for, and the Canon 70D is a more all-round multi-media device. For many people the improved video focusing and built-in wireless capabilities for sharing images will instantly make a compelling argument in favor of the 70D.

Thursday, August 1, 2013

Sony and Panasonic working on 300 GB optical discs

Sony and Panasonic working on 300 GB optical discs


A recent optical disc archive system from Sony
A recent optical disc archive system from Sony

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Technology giants Sony and Panasonic are joining forces to create a single optical disc with 300 GB of capacity by 2015. Both companies have developed their own high capacity optical disc technology in the past, and the joint venture will aim to create a new format to target large amounts of storage for corporations, though it could be introduced into the consumer market as well.
Very little is known about the technology at this stage, but the development is a show of continued faith in optical media for both companies. In September 2012, Sony built a file-based optical disc archive system. These discs (pictured above) are used by top professionals who shoot HD video coverage, which requires large amounts of storage. In July of this year, Panasonic launched the LB-DM9 series of optical disc storage devices. It uses a dedicated magazine that's just 20.8mm thick and houses 12 100 GB discs.
Though it's not clear if the new optical disc technology from the two companies will keep your data secure for 1,000 years like M-DISC the new technology sounds exciting, and may come as welcome news to businesses which aren't completely convinced about cloud storage or the lifespan of hard drives or SSDs.

TCL announces 50-inch 4K TV

TCL announces 50-inch 4K TV with $999 price tag


TCL's new 4K LED TV has a price tag just under $1,000
TCL's new 4K LED TV has a price tag just under $1,000
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Ultra high definition televisions are still growing slowly in the market. Generally, they are priced outside of the affordable range for most consumers, but TCL is looking to change that with the introduction of its 50-inch (127-cm) LED 4K Ultra HD TV at a US$999 price point.
In addition to the 3840 x 2160 resolution, which is about four times higher than 1080p, it also comes with SRS TruSurroundHD, so buyers on a budget should be able to get decent sound quality without needing to spend the money on a dedicated audio system.
It also features a 5,000,000:1 dynamic contrast ratio, which is not as high as top-of-the-line models, but should still offer a solid black to white ratio. The display has a 120Hz refresh rate, which again, is not on par with more expensive models, but it's the trade-off for the higher resolution at such a low price.
The TV also features four HDMI ports, which is pretty standard for modern HDTVs.
Lacking from the device are smart TV features, which is something that tends to come pretty standard on most modern models. However, it does come with something called Mobile High-Definition Link, which allows users to connect smart phones or tablets to the TV to display content.
The $999 LED 4K Ultra HD TV is expected to launch this September in the US. TCL did not announce when it will launch in other territories.