5/27/2023 0 Comments Pano2vr streetviewWith my combination of lens and camera as above, I then took the 5 images. I usually shoot RAW+JPG – but unless you’re going to do any RAW processing JPG saves on workflow a little. This is important otherwise you won’t be able get the seams to blend properly. Also lock the focus and the white balance. Now switch to manual mode and set the ISO, aperture and shutter speed to lock the exposure for the whole panorama. Switch to aperture priority mode and the lowest ISO you can, half press the shutter and take a reading of the shutter speed. The easiest and quickest way* to set the exposure, is to point the camera in the direction you’re most interested in. As the family scurried off I quickly attached the plumb line to the front of the fisheye lens, picked a reference point on the ground and went about taking my shots. We were were on holiday in North Devon, near Croyde and I decided on a 360° at Baggy Point. These are with the camera in portrait position, to provide more overlapping for stitching, and it also makes it easier to join a featureless sky. To give myself I little more overlap I’ll take 5 images with the camera level. For this setup, to get a full spherical panorama, I can use the handy calculator here to establish that I require at least 4 photos holding the camera level, one straight up for the zenith, and one straight down for the nadir. The G80 is a micro four thirds (MFT) and has a 2x crop factor which basically means that 7.5mm is actually 15mm 35mm equivalent. I’m using a 7.5mm Samyung fisheye lens on a Panasonic G80. And you’ll get the greatest field of view if you use a fisheye lens on a full frame camera. If you want to take as few shots as possible, a fisheye lens is a good option. Panasonic G80 with Samyung 7.5mm Fisheye Lens In fact the longer focal length lenses will provide an even higher resolution image, but the stitching becomes more difficult, particularly if you’re taking the shots handheld. But you can take these full 360°s with any lens. The wider the angle of the lens (shorter focal length), the fewer pics you need to take. The amount of photos you need to take to produce a full spherical 360°x180° image, depends on the lens you use. A plumb line attached to the front of the lens This acts a plumb line that you use to rotate around a reference point on the ground. It simply involves dangling a piece of string with a weight off the lens close to the NPP. But there’s a way of getting decent results without lugging a tripod and a special head around with you. Bought ones are expensive, although I’ve made one out of wood which works well. The most accurate way of finding the NPP and rotating around it, is to use a tripod with a special panoramic head. Sometimes (incorrectly) called the nodal point, this is usually just behind the front of the lens of your camera. It’s impossible for even the best stitching software to join offset images like this together, so when you take your photos, you need to rotate around a point in the lens of your camera called the entrance pupil or no parallax point (NPP). Now close the other eye and watch your thumb and the background move relative to each other. To explain what this issue is, hold your thumb out in front of you and close one eye. To make stitching your images together as easy as possible, you want to do your best to avoid parallax. I’ve produced a video of the process, along with a written description: And there are smartphone apps like Occipital 360 you can also try. An alternative option, would be the Ricoh Theta S I looked at here, but this is quite expensive and produces relatively low resolution images. This produces a very high resolution image, with invisible seams where the stitching occurs. There are three parts to creating an image like this: capturing the photos, stitching them together and publishing them.Īnd there are countless ways to perform each step, but in this article I’m going to be using a mirrorless camera ( Panasonic G80) with a fisheye lens ( Samyung 7.5mm) to capture the images, and only free software and services to stitch, edit and publish the panorama. I’m going to describe from start to finish how to create this interactive 360° spherical image (click and drag around the image – use the scroll wheel to zoom):ģ60° panoramic photography is a unique way of capturing images that can be interacted with, either via dragging and zooming with your mouse, or with a VR headset.
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