Canon patent details triple image stabilization system for low-light video recording
 |
One 'embodiment' of the concept covered in the patent makes use of lens IS [104], electronic IS [118] and an 'image capture shake correction control unit' [622] connected to the sensor. |
Canon has patented a method for improving its dual IS system during longer exposures. In doing so, the patent explicitly mentions the idea of triple IS, which makes use of in-body image stabilization.
The patent itself relates to the challenges of combining lens and digital image stabilization. At present Canon uses optical (lens-based) stabilization to compensate for small, fast, high-frequency movements such as the movement of a vehicle or rapid hand shake, and then uses electronic stabilization (adjusting the crop region of the sensor to stay aligned with the subject) for low-frequency movements.
 |
The patent itself focused on balancing the roles played by the optical and electronic stabilization systems, and varying it depending on shutter speed. |
The problem is that, during long exposures this electronic stabilization isn't effective: the camera continues to move slowly around the subject but the camera can't adjust which region of the sensor it uses, mid-exposure: so you still experience blur. This patent gets around this by assessing the current shutter speed and handing-off more responsibility for low-frequency movement from the electronic IS system to the lens IS system.
What makes it more interesting (beyond the insight that Canon is constantly trying to improve these things), is that the patent is phrased to ensure it also applies to a triple IS system that uses optical, electronic and sensor-shift stabilization.
Canon has already said it's working on a combined optical and in-body IS system that will work together. This patent suggests its engineers have had this possibility in mind for some time.
|
|
|
|
May 27, 2022
|
May 23, 2022
|
May 24, 2022
|
May 24, 2022
|
The Sigma 20mm F1.4 DG DN Art has solid build quality, some useful functions and weighs less than you'd expect. Does it take pretty pictures though? We have the answers.
Sigma's been on a roll with their mirrorless Art series lenses. Does the new 24mm F1.4 DG DN continue the streak?
The Panasonic GH6 is the latest in the company's line of video-focused Micro Four Thirds cameras. It brings a new, 25MP sensor and 10-bit 4K capture at up to 120p. We've put it to the test, both in the studio and out in the field.
Is the MSI Creator Z17 the MacBook Pro competitor Windows users were hoping for? In our tests it delivers big performance and offers a few good reasons why you might choose a 12th-Gen Intel laptop over a Mac.
Canon's high end APS-C mirrorless camera has plenty of compelling features, but is it worth the price? Jordan took it on vacation to find out.
What’s the best camera for around $2000? These capable cameras should be solid and well-built, have both speed and focus for capturing fast action and offer professional-level image quality. In this buying guide we’ve rounded up all the current interchangeable lens cameras costing around $2000 and recommended the best.
What's the best camera for shooting landscapes? High resolution, weather-sealed bodies and wide dynamic range are all important. In this buying guide we've rounded-up several great cameras for shooting landscapes, and recommended the best.
If you're looking for the perfect drone for yourself, or to gift someone special, we've gone through all of the options and selected our favorites.
Most modern cameras will shoot video to one degree or another, but these are the ones we’d look at if you plan to shoot some video alongside your photos. We’ve chosen cameras that can take great photos and make it easy to get great looking video, rather than being the ones you’d choose as a committed videographer.
Although a lot of people only upload images to Instagram from their smartphones, the app is much more than just a mobile photography platform. In this guide we've chosen a selection of cameras that make it easy to shoot compelling lifestyle images, ideal for sharing on social media.
Comments