Sensor-shift Image Stabilization
The K200D features Pentax' sensor-shift image stabilization system. This system works by moving the sensor in the opposite direction to the sensed shake movement of the camera. To function properly the camera needs to know the focal length of the lens. If you are using a Pentax DA, D FA, FA J, FA or F lens this information is acquired automatically. For all other lens types you can enter it manually in the menu.
The stabilization test
This is our standard in-body IS test. Twenty hand-held shots were taken of a static scene, half of those with stabilization, half without, the shutter speed was decreased by a stop and repeated (from 1/100 sec to 1/6 sec). The lens used was the Pentax 50 mm F1.4 (producing a 75 mm equiv. FOV), the test chart was 1.2 m away from the camera.
The resulting 100 images were then inspected and given a blur score from zero to three where zero represented a very blurred image and three a sharp image with no noticeable blur (see crop examples below). Obviously the amount of blur which is acceptable will depend on your personal taste and the final image size (for instance a '2: Soft' will still look fine as a 4x6 print or in a web gallery). Example crops from these four blur scores can be seen below.
|0: Very blurred||1: Blurred|
|2: Soft||3: Sharp|
Hand-held, no stabilization (75 mm equiv. FOV)
With the anti-shake system switched off we get 100% sharp images when shooting at 1/100th of a second. Below that, the 'keeper' rate drops off progressively and when shooting at slower speeds than 1/50th of a second we only get 50% or less usable shots (sharp/soft).
Hand-held, with stabilization (75 mm equiv. FOV)
With anti-shake switched on the improvement is immediately visible although you still only get 100% sharp shots at 1/100th sec. On the plus side even at shutter speeds as slow as 1/6th sec you get 50% usable shots. The system gives you an advantage of approximately 2 stops but tends to work more efficiently at very slow shutter speeds. This is a reasonable result but not outstanding. It is also not even close to the the 4 stops that Pentax claims its anti-shake is capable of.
- 16 Photographic tests (Noise)
- 17 Photographic tests (DR)
- 18 Photographic tests (DR)
- 19 Photographic tests
- 20 Compared to
- 21 Compared to (JPEG)
- 22 Compared to (JPEG)
- 23 Compared to (JPEG)
- 24 Compared to (RAW)
- 25 Compared to (RAW)
- 26 Compared to (RAW)
- 27 Compared to (Higher ISO)
- 28 Compared to (Resolution)
- 29 Conclusion
- 30 Samples
The group that provides Canon users with programs to expand the feature set of their cameras has begun cracking the new EOS R mirrorless firmware.
The Pixel 3 represents another step forward in computational photography for Google's smartphone. We're just getting started with our testing – for now take a look at some sample images, including 'computational Raw' files available for download.
Lens Rentals Founder, Roger Cicala, has given the Canon EOS R one of his signature camera teardowns.
Nikon says firmware version 1.03 "Fixes an issue that in rare circumstances would delay the shutter release or the start of the autofocus operation."
The Kickstarter campaign for Yashica’s digiFilm Y35 camera has produced a wave of complaints about delays in shipping product as well as cameras that don’t work.
Pixelmator today released Pixelmator Pro 1.2 Quicksilver, a major update to its image editing app for Mac.
Although Raw performance of the EOS R is very similar to the 5D Mark IV, Canon's done some tweaking on the JPEGs - take a look at our studio scene to see for yourself.
If you've backed one of the company's crowdfunding projects, the reward will not arrive and you won't get your money back either as Meyer Optik Görlitz's parent company, Net SE, is completely dead.
The importance of APS-C, a future a7S model in development and why customers want two card slots – read our full interview with Sony's Kenji Tanaka.
Google's Super Res Zoom technology uses pixel-shifting methods to achieve zoom results comparable to some optical solutions. Google has published an in-depth explanation on its AI blog.
CyberLink has release the latest version of its photo editing and design program PhotoDirector.
Toy manufacturer Tomy has launched a no-battery-required smartphone printer that is remarkably like the one Holga has been promoting via a Kickstarter campaign but which is already available for $40/£39.
A handful of Sony users have noticed a particular model of SanDisk SD cards is showing errors when used with Sony a7 III camera.
The Fujifilm X-T3's 4K video more than lives up to its impressive specification, making it one of the most capable video cameras we've ever tested.
VSCO has made it easier to find the right presets for your photos with a few interface changes to its smartphone app.
TinyMOS is back with NANO1, an all-new astrophotography camera that's one-third the size of the TINY1 it announced three years ago.
Huawei's latest flagship device comes with the widest range of focal lengths of all current smartphones.
After shaking up the Lightroom ecosystem with Lightroom CC last year, Adobe has released version 2.0 of the cloud-centric photo organizer and editor. We look at new features like People View, how far Lightroom CC has come in its first year, and where Lightroom is headed.
Today, at Adobe MAX 2018, Adobe previewed Photoshop CC on iPad, a full-featured, desktop-class version of Photoshop for iOS.
The weather and has most definitely taken a turn toward fall here, and our shooting opportunities have followed suit. We brought the Canon RF 35mm F1.8 along to a harvest festival of sorts and a few of our usual haunts.
Pennsylvania Governor Tom Wolf has signed House Bill 1346 into effect, which imposes a fine upwards of $300 to drone operators who invade the privacy or harm the physical wellbeing of citizens.
Sigma is a company in flux, but CEO Kazuto Yamaki is undaunted by the upcoming prospect of developing lenses for eight lens mounts. The challenge will be keeping the company's identity along the way.
If you've been meaning to convert all of your old photos, video, and audio to digital formats, but simply lack the time or willpower to get through it all, a new service from Kodak will help you get the job done.
Almost all new cameras include impressive video features, but for the best results you'll often need an off-camera recorder. Chris and Jordan take a look at the brand new Ninja V from Atomos, and explain why it might just be one of the most useful tools you can add to your camera.
Collect allows you to transform 360-degree into a more easily digestible format by transforming it into directed traditional videos.
Sick of using your plain ol' keyboard to edit your photos in Lightroom and Photoshop? TourBox is hoping to expedite your post-production workflow using a clever combination of dials, buttons, and knobs.
Bag and accessory manufacturer Hex has launched two bags as part of its latest collection: the Clamshell Backpack and DSLR Sling.
Crank out instant photos with Holga Digital's new analog printer, currently being funded on Kickstarter.
We got some hands-on time with Leica's new S3 medium format camera, which boasts a new higher-res sensor as well as other improvements.