Print 7 comment(s) - last by EricMartello.. on Jan 11 at 9:59 PM

Canon G1 X  (Source: Canon)

Canon Elph 520 HS  (Source: Canon)

Canon Elph 110 HS  (Source: Canon)
New cameras will launch early in 2012

Canon today unveiled new feature-filled cameras in its Elph range and a new PowerShot flagship called the G1 X. The Elph cameras include the 520 HS and the 110 HS. The, on the other hand, G1 X features a 1.5-inch 14.3-megapixel CMOS sensor, which is the largest ever to be used in a PowerShot model. 
"The new additions to our PowerShot lineup further demonstrate Canon's commitment to delivering users innovative imaging products," said Yuichi Ishizuka executive vice president and general manager, Imaging Technologies & Communications Group, Canon U.S.A., Inc. "These sleek and compact cameras bring together powerful features, intuitive controls and unrivaled portability while maintaining high image quality."
The new large sensor in the G1 X has nine times more light sensitivity than any other PowerShot model. The G1 X also has a DIGIC 5 image processor for high quality images in harsh light conditions and High-Speed HQ2 that allows for shooting high-resolution images at high speed. ISO range for the camera is up to 12800.  Optical zoom on the camera is a meager 4x and the aperture range is f/2.8 to f/16. Canon designed the camera to support 14-bit RAW+JPEG shooting. It can also record 1080p HD video.
The G1 X also has a 3-inch variable angle LCD and will ship in February for $799.99.
The Elph 520 HS and 110 HS camera both sport advanced Smart Auto that allows the cameras to detect up to 58 scene modes to work with anything from portraits and action shots to landscapes. The cameras also include Face ID that can register up to 12 people within the camera. To register the individuals the camera user can take up to five shots of the subject at different angles. The camera can then give focus priority to the youngest person in the frame when the details on age are entered. The camera also allows the user to search by the face. Other features include Smile Recognition and sleeping Face Recognition.
The 520 HS has 10.1-megapixel resolution with a 12x optical zoom lens. The ISO range is up to 3200 and it has a wide-angle 28mm lens. The camera can shoot bursts at 6.8 fps. Canon will offer the camera in several colors with launch set for March at $299.99. The 110 HS is a 16-megapixel camera with 24mm lens, 5x optical zoom, and ISO up to 3200. It has a 3-inch rear LCD and can capture 1080p video. It will sell for $249.99 and will launch in February.

Source: Canon

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By EricMartello on 1/11/2012 9:59:44 PM , Rating: 2
Yes, I think we can both agree that a greater sensor surface area means a greater potential to collect light. Nobody is disputing that here...but...the problem with what you're saying is that you're talking about sensor size like we're in a vacuum and that just isn't the case.

Let's examine the sensor sizes so I can make this a bit less arbitrary for you:

- G1X has a 1.5" sensor, specifically 18.7mm x 14mm (262mm^2).
- Micro 4/3 sensor size is 17.3x13mm (225mm^2)
- APS-C sensors have between 330 to 370mm^2 depending on the make.

So were not talking a huge difference here between the G1X and the better M43 standard. The G1X sensor has about 16% more surface area, and I'm going to speculate that its crop factor is also 2.0 - so you basically have a big, clunky M43 wannabe in the G1X.

A lens whose speed is f/2.8 is average. It's not fast, and even if the G1X had an APS-C sized sensor, the small lens would not be able to take advantage of it due to its 2.0 crop factor.

No, I am not confusing cropping and vignetting. If you put standard APS-C lens on a full-frame body such as the Sony A900, you will experience vignetting. It is for this reason that the A900 will automatically crop the sensor area so that the resulting exposure surface is equivalent to an APS-C sensor.

The pictures you take using the cropped sensor will have more noise than they would if you took them with a normal APS-C camera. Why? The larger pixels can collect more light but at the same time they limit the amount of pixels a given surface area can contain.

The sensor alone is NOT the only component involved in the digital picture taking process. After the exposure is made, the data must be converted from analog to digital - the faster and more accurately a camera can do this, the less chance there is for noise to appear in the resulting image. The camera will also have internal circuitry designed to reduce noise.

The noise you get from higher ISO values can be compensated for by the camera during the A/D process - and some cameras do this better than others.

A larger sensor means you do not need to jack up the ISO value as high to get the same amount of effective light sensitivity - meaning better pictures in low light conditions.

F-stops indicate the relationship of the pupil size to the focal length of the lens and that is all. Yes, DOF is affected by the selected f-number. If you have a 50mm f/1.8 lens and a 90mm f/1.8 lens, despite having equal f-stop values the 90mm lens is going to be the "faster" of the two by nearly 100%. For the 50mm lens to match the 90mm f/1.8 lens it would need to be f/1.0.

It's worth pointing out that the crop factor of the camera in question will affect the effective f-stop values. The ones I mentioned in this example are based on a the 35mm standard. Transposing them to M43 would require dividing the both focal length and f-value by the crop factor value of 2, meaning the 50mm f/1.8 lens becomes a 25mm f/0.90 (similar to the available 25mm f/0.95 Nokton) and 90mm f/1.8 becomes a 45mm f/0.9 (which does not exist for M43 at this time afaik).

Full size DSLRs have inherently longer focal lengths and more control over DOF, but you're not going to get very impressive background blur using the G1X and its f/2.8 lens.

Big sensors show their benefits more in low-light scenarios. If you are shooting in daylight or have control over the lighting (i.e. studio), then the benefits of the larger sensor diminish and you start to see their limitations. In bright lighting conditions large sensor cameras tend to be soft around the edges of the frame, whereas the mirrorless M43 cameras maintain a sharp image across the entire frame.

So if you're coming from a basic point and shoot and just want better quality, the G1X would work but it's still overpriced at $800. There isn't really any situation where you can justify going with the big and bulky G1X over any of the M43 options out there...and quite frankly, I would have liked to see Canon enter the M43 market.

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