Canon PowerShot G5 Review
JPEG/RAW Image Size & Quality
The G5 provides four image size options in combination with three JPEG quality settings. In addition to these there is also the RAW format (losslessly compressed) which can be considered a 'digital negative' as it contains the unprocessed data as it comes directly from the CCD (as well as information about camera settings).
Standard Test Scene
To give an impression of what some of the combinations of image size and quality produce the table below is a cross reference of some of them:
- 2592 x 1944 RAW
- 2592 x 1944 Super-Fine
- 2592 x 1944 Fine
- 2592 x 1944 Normal
- 1600 x 1200 Super-Fine
- 1024 x 768 Super-Fine
- 640 x 480 Super-Fine
Images below are cropped 240 x 100 area of the image magnified
200% (nearest neighbour).
|2592 x 1944|
5,495 KB Canon RAW (.CRW) - not available for download
|1600 x 1200|
|1024 x 768|
|640 x 480|
As we have come to expect Canon's "Super-Fine" setting is very clean and as near to "lossless JPEG" as you could ask to get, it uses a very mild compression ratio and exhibits no visible JPEG artifacts or loss of detail. Higher compression ratios are available with the Fine and Normal settings, however these are also relatively clean, certainly compared to some other manufacturers algorithms. Canon also uses a quality interpolation algorithm when producing the downsampled 'lower resolution' images, they are clean and smooth with no hard jaggies. The G5 of course provides a RAW mode which in effect gives you a 'digital negative' which you can 'develop' with different settings (white balance, sharpening, exposure compensation etc.) than were originally set.
The G5 has a dedicated 'Effect' menu which allows you to apply canned image processing settings to the images before they are stored, these include effects such as black and white, sepia, low sharpening and vivid color. In addition there is a Custom Effect setting which gives you control over three aspects of image processing. 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 header as the default settings for Canon's File Viewer Utility.
My only gripe must be that while it's good to see control over image processing (to be frank we expect it with this level of camera) I would have been much happier to see a greater latitude of adjustment, +/-3 levels at least.
Contrast and Saturation
|Contrast -1||Contrast 0||Contrast +1|
|Saturation -1||Saturation 0||Saturation +1|
|I see you by Phocal|
from Animal eye reflection
|Apocalyptic Sunset by Impact Photo|
from A wheel good photo!
|AU4_6418_BB-35 by DaveInHouston|
The patent details a flipping rear LCD screen so large, Canon has had to hide the rear dial and several buttons underneath.
We've added a selection of extra images to our Nikon D850 gallery. As part of the process of rounding off the review we made sure a number of us had shot the camera in a variety of situations, we've added those shots to the gallery to give a broad cross section of how the camera performs.
Wiral LITE is an affordable, easy-to-use cable cam system that can do things a portable slider simply can't do, and go places no slider would dare go.
Not happy with the recent demise of Lightroom as a stand-alone, subscription free service? Macphun's got your back... or they will in 2018.
Once connected to a PC, Mac, tablet or smartphone, Pholio automatically searches through the device storage and backs up all images and videos—complete with auto-tagging and intelligent search capabilities.
The 360 Round uses eight horizontally positioned camera pairs and one upward-pointing single lens to capture and livestream panoramic 4K 3D content.
Introduced just three years ago, the Samsung NX1 was both a technological tour-de-force and a great camera to use, earning one of the highest scores we've ever awarded and winning our 2015 Innovation Award. But its short-lived run in the photo world leaves us wondering what could have been.
The Fujifilm X-E3 is styled like a classic rangefinder, but features a built-in touchscreen, AF joystick, and electronic viewfinder – truly an old school meets new type of camera. Lay some eyes on our sample gallery to see how it performs in the real world.
Like it or not, Adobe is embracing a cloud-centric, AI-rich future with the introduction of Lightroom CC. And that's a great thing, though you may not see it now, argues Rishi Sanyal.
The announcement of a more cloud-integrated Lightroom product sees the death of the company's standalone version. This need to make payments in perpetuity (whether you choose Lightroom Classic or CC), chips away at the idea that your Lightroom library is a long-term solution, argues Richard Butler.
The XPro-C 2.4GHz wireless flash trigger that Godox released for Canon users last month now has a Nikon equivalent—the aptly named XPro-N. Sony, Fujifilm and MFT versions are in the works.
In the aftermath of hurricanes Harvey, Irma and Maria, camera and lens maker Sigma is extending its standard product warranty to cover damage caused by these three natural disasters.
The F4 Plus can can capture 360° stills, videos and broadcast livestream footage at 8K resolution... that's 7680 x 3840 pixels!
Lightroom is hogging the spotlight at Adobe MAX, but Photoshop CC got some substantial improvements as well. Find out what's new in the latest version of Photoshop CC.
The aptly-named 'Nude' app automatically detects NSFW images on your iPhone, moves them to a protected vault and deletes the original files in the camera roll and on iCloud.
The Zeiss Milvus family of manual-focus full-frame lenses just gained a new member. Meet the Zeiss Milvus 24mm F1.4: a fast, rugged new lens designed primarily for landscape and architecture photography.
Lightroom has built a brand new Lightroom CC from the ground up to be faster, easier to use, and cloud-based. The application formerly known as Lightroom CC will continue to exist, and will go by "Lightroom Classic CC."
Google Research did a deep dive on the Pixel 2 smartphone's background-blurring portrait mode that uses neural networking and dual-pixel technology instead of a dual-camera setup.
With the arrival of the PowerShot G1 X III, there are now seven Canon cameras built around the 24MP Dual Pixel sensor and Digic 7 processor. We take a look at the differences and what might prompt you to choose one over the others.
Meet the HP ZBook x2. The so-called 'world's most powerful and first detachable PC workstation,' it was built with creative professionals in mind, and is being debuted at Adobe MAX.
PDN sat down with Ahmed Fakhr, director of photography at RollingStone.com, to talk about how the famed publication is adapting to the changing photo and video needs of the modern era and how he 'evaluates the skills of potential contributors.'
Kudos to Canon. Earlier today, the camera giant announced that it had produced its 90 millionth EOS camera and 130 millionth EF-series lens.
The ROV Slider is a portable, motorized slider that promises to bring 'beautiful cinematic video and time-lapse' shooting to anybody with a smartphone, GoPro or DSLR that weighs less than 5lbs.
The new Surface Book 2 laptops come with Intel's 8th generation quad-core processors and NVIDIA GeForce GTX 1050 and 1060 GPUs. In other words: they pack a serious punch.
Leica is resurrecting a portrait lens from the 1930s: the Thambar-M 1:2.2/90. This lens features just 4 lens elements, and was famous for its spherical aberration that creates extremely soft images.
Google's Visual Core is an Image Signal Processor designed to power and accelerate HDR+ processing and other imaging tasks in the new Pixel 2 devices (and beyond).
The Google Pixel's camera is among the best we've reviewed, and its successor has already been hailed as class-leading. With expectations set high, the Pixel 2 has nonetheless left a very good first impression on us as we shot some initial sample images.
Leica is one of the oldest names in photography, and has long been one of the most prestigious. Recently, we had the opportunity to visit Wetzlar, to see for ourselves how Leica's lenses are put together.
Canon went and put an APS-C sensor in a G series compact. The result is a mighty tempting camera for travel.
Google Photos is adding a few pet-friendly features that will make it easier to find photos of your favorite pooch. Now, you can organize your pet photos by facial recognition, and you can even search your library by breed.