Depth of Field - what is depth of field

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Yes, at this time it is possible to process JPEG Still images with use of EOS VR Software solutions created by RF5.2mm F2.8 L Dual Fisheye lens and EOS R5 camera equipped with the upcoming Firmware Update 1.5.0 or later.

For the best perception of depth, it is recommended that your subjects be within 1.64 feet – 4.92 feet from your camera. When shooting distant subjects such as a landscape, or an arena for example, a foreground element should be considered as a compositional element.

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Created for the historic Fairmont Banff Springs, this virtual reality experience allows you the opportunity to immerse yourself in the world-class resort and its unique experiences and amenities. Watch on your desktop, phone, or any other VR viewer. For an exclusive behind the scenes look at how BC production company, Inmist Studios made this immersive 180° experience, sign up below.

Canon’s EOS VR Utility is a standalone software application (currently in development with availability and details to follow on or about early 2022). This paid subscription software (available with a free trial) converts the recorded dual fisheye image to equirectangular imagery. In addition to minor editing and trimming, you can also process and export your file to various resolutions and formats so they can be viewed in compatible Head Mount Displays (such as the Oculus Quest 2 or Pico G2) and other platforms.

The RF5.2mm F2.8 L Dual Fisheye lens gives the EOS R5 camera the ability to capture an immersive stereoscopic 3D experience. With stereoscopic 3D 180° VR, a vivid environment can wrap around your viewer, allowing them to see beyond their initial field of view (resting position)— and when they move their head up, down, left, or right while wearing a compatible headset they can see a much wider total field of view captured by the lens. While other head mount displays may work, currently only Oculus Quest 2 and Pico G2 (in movie mode only) head mount displays are tested and compatible with files from EOS R5 camera and RF5.2mm F2.8 L Dual Fisheye lens.

Currently only an EOS R5 camera equipped with the upcoming Firmware Version 1.5.0 or later will be compatible with RF5.2mm F2.8 L Dual Fisheye.

While the use of Canon’s dedicated software is not a requirement, it is HIGHLY recommended for most VR creators. The basic workflow of the Canon VR system is:

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The use of 2-dimensional devices such as monitors, tablets, smartphones and projectors will not render an image capable of being viewed in 3D as they are seen as “flat” images. The viewing experience in 2D can allow for scrolling around the VR image using your finger, pointer device or turning your device when using a smartphone or tablet.

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The RF5.2mm F2.8 L Dual Fisheye is a Manual Focus operation only lens. You can utilize the Focus band on the lens barrel to adjust the focus of both Left and Right optical systems simultaneously. It is recommended to focus for the left lens first. For situations when the left lens is sharp, but the right lens needs refinement, a separate Left-Right Focus Difference Dial is provided to adjust focus of the Right lens only, using the provided 1.5mm hexagon wrench.

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High-quality glass Fresnel lenses in lighthouses were considered state of the art in the late 19th and through the middle of the 20th centuries; most are now retired from service. However, the technology, in updated form, has many and varied uses including in car head lights, optical landing systems, and for production of solar energy.

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Fresnel produced six sizes of lighthouse lenses, divided into orders based on their size and focal length. In modern use, these are classified as first through sixth order with the sixth order the smallest. Nobska’s current Fresnel lens, pictured to the right, is a fourth order lens, a substantial size.

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Nobska's lens is in good working order and can be seen from the grounds - and up close if you climb the lighthouse tower.

The magic window that is seen inside of the image circle is a compositional aid to make you aware of the central resting position of your image and an approximate view of what your viewer sees first when wearing a head mounted display or watching VR content with a smartphone or computer. The approximate horizontal angle of view is 100°.

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Pronounced "frennel" or "fraynel", a Fresnel lens is a type of compact, multi-faceted lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses. The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can capture more oblique light from a light source, thus allowing the light from a lighthouse equipped with one to be visible over greater distances.

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For users of Adobe Premiere Pro, the EOS VR Plug-in is available (currently in development with availability and details to follow on or about early 2022). This paid subscription plug-in (available with a free trial) converts your files to equirectangular upon importing into your project. From there, you can use all the functions available to you within Adobe Premiere Pro including cutting, trimming, colour correction, exporting and more. This plug-in solution allows for working with your files without ever leaving Adobe Premiere Pro.

By being equipped with TWO separate optical systems, the RF5.2mm F2.8 L Dual Fisheye lens can capture two different images (Left and Right) onto a single image sensor. The 60mm spacing between these two optical systems provides a “side-by-side” stereoscopic image with similar parallax to human vision, producing a realistic, familiar, and comfortable stereoscopic image. When viewing the fully processed image in a compatible VR Head Mount Display, users can experience a 3D stereoscopic 180° VR immersion. It should be noted that Head Mount displays typically require a single image file that drives two screens in the headset (Left and Right eye pieces), so by having a side-by-side stereoscopic image captured on the single image sensor from the start it can help speed up workflow substantially versus the need to use custom camera rigs or multiple cameras.

Yes, it is possible. It is recommended to record files which are either 8K DCI or 4K DCI in resolution to achieve the widest frame possible.

According to Smithsonian magazine, the first Fresnel lens was used in 1823 in southwest France near the mouth of the Dordogne River; its light could be seen from more than 20 miles. Nobska’s first Fresnel lens was installed 18 years later in 1841. The current lens was installed in 1888.

MTF measurement and testing by Image Science - Designing & manufacturing optical test equipment for assessing the quality of visible & infra-red lenses.

When 8K DCI resolution (8192x4320) is selected in-camera, the recorded image per eye is approximately a diameter of 3684 pixels per lens image. After using an EOS VR Software solution to convert the image to equirectangular, the exported image can be output as one of the following 2:1 ratio resolutions: 8192x4096, 6144x3072, 5760x2880, or 4096x2048. At these output resolutions, the per eye diameter of each would be 4096x4096, 3072x3072, 2880x2880, and 2048x2048. Please note, the "viewed image" in headset is dependent on the resolution capability of that head mounted device.

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“Being situated in beautiful Banff National Park, we often say that pictures don’t do this place justice. That’s why we were excited to use VR to showcase Fairmont Banff Springs and the surrounding area in an interactive and immersive way. VR allows our potential guests to not only see the resort but to really imagine themselves experiencing a stay at Fairmont Banff Springs.”