Canon PowerShot G2 Review
Image Processing Adjustments
The G2 allows for control over three aspects of the cameras internal processing algorithms. You can alter the sharpening, contrast and saturation of images. Although these settings are available in RAW mode they are not applied to the image in-camera but are stored in the RAW image headers as the default settings for the TWAIN acquire module.
|Contrast -1||Contrast 0||Contrast +1|
|Saturation -1||Saturation 0||Saturation +1|
|Sharpening -1||Sharpening 0||Sharpening +1|
As you can see each of these settings changes is relatively subtle, those users who prefer their colours to be bright and vivid straight out of the camera will probably opt for Saturation +1. Those who are more purist will probably leave the Saturation setting alone and use Contrast -1 to maintain as much detail as possible.
Colour Effect exposure mode
Gone is the G1's "BW" exposure mode, to be replaced by a new 'Colour Effect' mode which provides four different post-processing colour effects (including black and white). This mode is essentially equivalent to exposure mode 'P' but with the additional post-processing effects.
|Colour Effect: Vivid||Colour Effect: Neutral|
|Colour Effect: Sepia||Colour Effect: Black and White|
As you can see the 'Vivid' colour effect gives very strong and vivid colours, these won't be to everyone's taste but could be useful if shooting dull, blue sky dominated or shots only for a computer monitor. The 'Neutral' effect tones colours right down which could be useful for maintaining a wide colour gamut.
Readers of my reviews will know I'm not a huge fan of digital zoom as it's often a badly implemented and seldom used (by owners) marketing "ploy" to sell cameras which don't have an optical zoom. The G2 has a 3.0 x optical zoom, and various digital zoom levels which appear after full telephoto (if you have digital zoom enabled).
|No Digital Zoom, equiv. 3x zoom||Digital Zoom x1.4|
|Digital Zoom x1.8||Digital Zoom x2.2|
|Digital Zoom x2.7||Digital Zoom x3.6|
Digital Zoom is simply cropping (selecting the mid part of the image) and sampling-up, the only advantage in doing digital zoom inside the camera is if you are using resolutions lower than maximum.
Aperture Priority Mode
Aperture priority is where you designate the aperture and the camera calculates the best shutter speed, if the exposure is outside of the cameras range (either over or under exposing) the nearest shutter speed will display in red on the LCD screen. Used properly Aperture Priority can be invaluable as it has a direct effect on depth of field (the distance in front and behind the focal point which will be in focus when taking the shot).
The G2 has a good range of available apertures:
- Wide: F2.0, F2.2, F2.5, F2.8, F3.2, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0
- Tele: F2.5, F2.8, F3.2, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0
Aperture Priority is an exposure mode is accessed by turning the exposure dial to Av. You can change aperture by pressing the left or right arrow keys on the 4-way controller. A basic example of aperture priority is shown below for more read my digital photography glossary:
| F2.2, 1/60s
(Less depth of field)
|F8.0, 1/6 s
(Most depth of field)
Shutter Priority Mode
Shutter priority is where you designate the shutter speed and the camera calculates the correct aperture, if the exposure is outside of the cameras range (either over or under exposing) the nearest aperture will display in red on the LCD screen. For more read my digital photography glossary.
The G2 has a wide range of shutter speeds:
- 1/1000, 1/800, 1/640, 1/500, 1/400, 1/320, 1/250, 1/200, 1/160, 1/125, 1/100, 1/80, 1/60, 1/50, 1/40, 1/30, 1/25, 1/20, 1/15, 1/13, 1/10, 1/8, 1/6, 1/5, 1/4, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.3, 1.6, 2, 2.5, 3.2, 4, 5, 6, 8, 10, 13, 15 secs
Focusing manually is far easier on the G2 than the G1 due to a number of factors. First of all there are far more focus points (over 60), secondly when you focus manually there's a ruler display on the left side of the screen (in both m/cm and ft/in) which indicates the current distance. Lastly there's the useful (if slightly blocky) magnified loupe area in the center of the current AF frame, this makes it easy to choose the focus position as you can see below:
|Focused on green bobbin||Focus on pink bobbin|
Bracketing is the automatic exposure of an odd number of frames, typically three or five, over and under exposed by equal steps to enable the photographer to select the best exposed frame at a later time. The G2 supports bracketing of three shots at either +/- 0.3, 0.7, 1.0, 1.3, 1.7 or 2.0 EV from the metered exposure, it takes the normal shot first followed by the under then over exposed shots. This option is available in P, Tv (Shutter Priority) and Av (Aperture Priority) exposure modes. The sample below was shot with 1.0 EV bracketing.
| 1/50 sec, F3.2
| 1/60 sec, F4.0
(-1.0 EV exposure)
|1/250 sec, F2.2
(+1.0 EV exposure)
|Rocks at Dawn by phucthang|
from The Rock
|Sarlat, France by poppyjk|
from Your City - Dinertime!
|Double Eagle by herbymel|
|Great White Egret vs Lizard by jose garcia|
from Strong - Weak
NASA's Mars Reconnaissance Orbiter captured this gorgeous aerial photo of the Martian landscape. And if you look really close, you can actually see the Mars Curiosity rover in the very middle.
The city of Laguna Beach, California has provided some clarification around the kinds of photography permits it offers.
Later this year, a VR180 camera will be Joining Yi's Halo and 360 VR cameras, which will offer stereo 3D capture, yet be as easy to use and compact as a 2D camera.
Caltech researchers have developed an 'optical phased array' chip that uses time delays instead of a lens to focus the incoming light.
Pricing and shipping have finally been revealed for two highly anticipated lenses from Sigma, announced in February.
These macro photos of clouds of paint billowing through clear water might look like high-quality CGI, but they're real photographs. And photographer Alberto Seveso told us how they were made.
Facebook is testing a feature that prevents people from saving, sharing, or even taking a screenshot of your profile picture.
We've reshot the Sony a9 in our studio. The short story: it's sharper! The long story... well you can read it all here.
The collection will be officially launched during the Europeana Transcribathon Campus Berlin 2017 crowdsourcing event which will be held on 22 and 23 June at the Berlin State Library.
Light gives us some insight into the preparations for the launch of the pre-order shipments of its much anticipated L16 multi-lens camera.
OnePlus co-founder Carl Pei has confirmed in a tweet that the second lens on the back of the OnePlus 5 uses a 1.6x optical zoom and that digital zoom is used to reach the claimed 2x zoom factor.
Fujifilm recently unveiled the second in its series of affordable cine lenses, the MK50-135mm T2.9. We got our hands on it for a couple days and took it for a spin.
Leica's first attempt at an M-series digital rangefinder was rough around the edges, but set a pattern for all of the cameras that came after it. In this week's Throwback Thursday article, Barney remembers the M8.
No stranger to extreme situations, legendary climber and filmmaker Jimmy Chin talks to Outside Magazine about his career, and the challenge of filming Alex Honnold's rope-free solo climb of El Capitain.
A company backed by Android co-founder Andy Rubin is attempting to make video conferencing less terrible.
Rangefinder magazine asked five professional portrait and wedding photographers about posting on Instagram; no surprise, they got five different answers.
This captivating stop motion film was created by stripping away one layer of wood at a time. It's hard to look away.
It will enable users to simulate the presence of the sun, moon and Milky Way and see how they interact with an area's topography.
Since its introduction in November last year Instagram's live streaming feature has been used by millions, but videos could not be archived for watching at a later stage. A new update has now added the capability.
CopyTrack's study also found that the second most-stolen image is a woman wearing painted jeans. That's apparently a thing.
Forget expensive lenses with fancy coatings and special lens elements – photographer Robin de Puy took these portraits using just a water drop for a lens.
Adobe reports a record quarterly revenue of $1.77 billion for the second quarter fiscal year 2017 ended June 2, 2017.
Zeiss says its new lens is particularly suited for portrait photography but also a good all-rounder and can be used in video applications.
We present to you the top photos from the Kennel Club's 2017 Dog Photographer of the Year photo contest – take a look at 10 of the award-winning puppers.
In case you were looking for any more inspiration to go fly one.
Following a couple of successful Kickstarter campaigns, Videre 35mm's creator has re-tooled the camera with sturdier components and a simpler user assembly process.
The two hour long video covers everything an aspiring drone pilot needs to know.
This is what happens when a Canon 17-85mm F4-5.6 lens meets 60,000 PSI of water pressure. Spoiler Alert: the water jet always wins.
Andrew Harnik discusses the challenges – and rewarding moments – of a career making images for the Associated Press in his native DC.
The VMic Pro, VMic Recorder and VMic microphones are targeted at DSLR users who want to record high-quality audio.