Virtual Tour Without Edition : Vertical Fisheye Shot
An alternative method to create 360 Degree Virtual Tours with great ease and economy.
Besides the parabolic mirrors to capture 360 Degree Donut Shots, other instrument capable of photographing a panorama of 360 degree is a Fisheye lens. These lenses extend the ability of the cameras to a little beyond 180 degree in a single photo. The result is a circular image that includes a full hemisphere.
Photographing A Hemisphere With One Click
Besides capturing very beautiful images Fisheye lenses are particularly good for some specific functions, including photographing small indoor and/or outdoor very large spaces, or connected to security cameras, cover large environments from strategic locations.
Below an example of a Vertical Fisheye Shot :
While an Fisheye lens photography always 360 degree, it does so in a direction transverse to the axis of the camera, so that to capture what we normally call 360 degree panoramas, it is necessary that it has a vertical orientation. The Fisheye photographs are images of complete hemispheres, ie circles of 360 x 180 degree. In Vertical Fisheye Shots, the circumference of 360 degree coincides with the horizon line, spanning it completely, so that we can talk about real 360 degree panoramas. If the orientation of the camera and lens are horizontal, then the circumference of 360 degree is transverse to the horizon and the resulting picture only covers half the horizon, so we consider these partial panoramas.
Transform The Vertical Fish Eye Shot In Virtual Tour With One Click
The easiest way to transform a Vertical Fish Eye Shot into an interactive Virtual Tour ready to be shared on multiple websites is to use our Online Virtual Tour Creator. It only takes to click here to enter the page, where among other options you will find a shortcut named create a new virtual tour.
This link takes you directly to the middle of the page, where the form to upload images is. Being yours a Fisheye Shot, tick with a tick the appropriate box. Doing so will display a new line with two options. To ensure that the system recognizes the loaded image as a Vertical Fisheye Shot, tick the box identified with the word Vertical: :
The options to add attached information are all optional, but it is recommended to type in a password as this will be required in case you wish to edit the information or remove the image from the database. The image file to be loaded is selected from its location on your hard disk by a dialog box :
After selecting the image and accepting, you must click on Upload Image Now and after a few seconds a new page will load with the new Virtual Tour. In the new page, the loaded image with attached data will look like this :
Simply click on the image to see the new interactive Virtual Tour performing :
The Virtual Tours created this way can be shared on multiple internet pages by just copying and pasting a code. For more information see the homepage of the Online Virtual Tour Creator.
A Common Problem: Missaligned Vertical Fisheye Shot
This is an uncommon problem because usually the subjection of the lens or Fisheye converter to the camera is done via reasonable stiff threads or locks. In some cases, however, you can shoot Fisheye Shots using lenses unprepared for the available camera model, for example, holding the lens in front of it with one hand. In these cases, it is likely that the circular image center does not coincide with the center of the whole image. These deviations are translated into images that, transformed into Virtual Tours show imbalances and non-horizontal horizon lines. Next, the fish eye shot of the example of this page has been deliberately altered to achieve such misalignment :
It is clear that the useful circle image is closer to the left side than to the right and although not so obvious, is also closer to the bottom than at the top edge. These deviations are responsible for the center of the Fisheye Shot not coinciding with the center of the whole picture, and that is why in the interactive Virtual Tour, the dark space corresponding to the sector of the photograph not reached by light, enters the scene in an unbalanced way, giving the feeling of the camera being tilted when getting the picture, which is not necessarily true :
As in the case of 360 Degree Donut Shots and Horizontal Fisheye Shots, the solution to this problem is simple: it is to crop the image leaving a square in the center fitting exactly the Vertical Fisheye Shot. In this way the center of the fisheye view and the center of the image will coincide and the Virtual Tour will work correctly. It is fair to say that this cropping is a minimum kind of edition of the image, so that it is no longer two-step job but three.
To crop the image you can use any image editor. It is advisable to check that at the end of the cut all sides of the image are equal, and if not, you should equalize them. At the example using Adobe Photoshop this is made with the Image Size tool :
The Vertical Fisheye Shot cut and equalized looks finally like this :
Now, the Virtual Tour works properly :
In the next chapter we will see another way to use lenses and Fisheye converters to very easily create interactive Partial Virtual Tours, showing only the interesting side of the space you want to share.
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With any camera
360 Degree Interactive Panoramas
In Three Easy Steps
After reading this tutorial you'll be able to create your first 360 degree interactive photography with the camera you already have :
1 - Photograph
Take one or more pictures of the place you want to show.
2 - Edit
Convert your pictures into 360 degree panoramas.
3 - Publish
Make your panoramas interactive and available to the world on the internet.
If a picture is worth a thousand words, a 360 degree interactive panorama is worth a thousand pictures...
Online Virtual Tour Creator
Using the online virtual tour creator you can :
Convert your 360 degree pictures to virtual tours with a single click.
Insert your virtual tours into web sites, emails, blogs or wherever you like by just copying and pasting a text.
Know in a practical way all kinds of 360 degree pictures.
Discover that you can create hundreds of interactive virtual tours just as easily as you take pictures with your camera.
Check that with just one click from your camera and another click from your mouse it is possible to create a 360 degree interactive virtual tour out of nothing. And completely free of charge!!!
You can get started right now, even if you don't have a camera
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