Plainsboro Preserve Lake McCormack Panoramas

It was a nice day yesterday so we went to the Audubon Plainsboro Preserve to take a walk and get some fresh air. I was traveling light and only took my Olympus OM-D mkI with a 7.5mm Fisheye lens. There was hardly anyone there so I was shooting some landscape images along our walk. There was still a few colorful Fall trees but most of the trees were bare along the path. As we were passing a short trail that lead down to a nice view of Lake McCormack I decided to shoot a couple of multi-image panoramas of the Lake. The Featured Image is made from 12 handheld horizontal images. Then I shot 10 vertical images for a higher panorama view of Lake McCormack. I have found that when using a m43 camera you need to overlap the images more than a Full Frame Camera. When I got home I started to work on my images for the panoramas. First I had to De-Fisheye the look of all of the images before I could use them to blend in the Final Panoramas. I just made an action to run & de-fisheye each image in the series. In Photoshop going to the Filter command at the top, then choosing Adaptive Wide Angle Filter that will usually correct the Fisheye look of your images. You also have to enter the Focal length of your fisheye lens before you use the filter. But this filter is set-up for Full Frame Cameras. So I entered 15mm which is the equivalent Field of View of my 7.5 mm lens on the m43 Olympus, basically 2x with the Olympus. Then I loaded the de-fished images into a Layered Photoshop file and selected all the layers. Then on the top commands go to Layer and choose Align, then merge Layers to complete the blending of the images.

10 Vertical Images to make the horizontal Lake McCormack Panorama

Multi-Image Fisheye Images

Here are some more Fisheye images taken with the 7.5mm 7 Artisans Fisheye lens on a m43 format camera. The featured image is one of my first multi-image Fisheye Panoramas. This is a 2 image Fisheye Pano taken on a gray day & light rain. With the 7.5mm Fisheye lens it seems that manually “blending” the images with a “soft” edge mask works best for assembling the panoramas in Photoshop. I then used the Adaptive Wide Angle Filter under “Filters” in Photoshop. I used the 15mm setting because the “Filter” is set up for Full Frame Digital Cameras. So the 7.5mm m43 lens would be an approximate 15mm field of view equivalent. If I ran it at 7.5mm I would get a jagged circular image in the middle of a white empty background. After you use the Adaptive Wide Angle Filter you can then fine tune your images using the “Warp” feature in Photoshop for even more fine tuning. Once you get used to using a Fisheye lens your results are more predictable and they are fun to use.

3 image Fisheye Panorama, 7.5mm, Olympus OM-D, assembled in Photoshop, Fisheye distortion somewhat corrected with Photoshop Adaptive Wide Angle Filter, than tweaked with “Warp” Filter
7.5mm Fisheye Image, OMD m43, straight out of camera. Notice “Warping” of image because of lower “Horizon Line”
Image after using Adobe Filter “Adaptive Wide Angle” Filter. Using “Adaptive Wide Angle Filter” seems to lessen the height of the image which seems to shorten the height of the image. But it seems to look more Natural than the Height in the “Fisheye” image.
7.5mm, 2 Image Panorama, OM-D, Assembled in Photoshop, then used Adobe Filter “Adaptive Wide Angle” Filter.
7.5mm, Olympus OM-D, Single Image, Adobe Filter “Adaptive Wide Angle” Adobe Filter
2 Image Panorama, 7.5mm m43 OM-D, “Fisheye” effect removed with Adobe “Adaptive Wide Angle” Filter. Shooting with Horizon somewhat centered in middle height of image lessens the weird “Fisheye Look” and then there is less fixing of “FishEye” Look of Image.

Something Fishy & DeWarping Fisheye Images

I used to use 15mm fisheye lenses on film cameras for interesting images back in the film days before digital. I usually used them for an interesting & different look here & there in multi-projector slide shows I used to produce for our Corporate clients. When Microsoft Powerpoint presentations came out, multi-projector Corporate slide shows died a quick death. With digital imaging starting to be more affordable in the early days, Fisheye lenses were not as popular in my Commercial work. When we needed one we would just borrow one from where we bought our supplies & equipment. But being retired now it is an interesting way to get very wide views and then in post processing to De-Fish them. I was looking for a used Canon 15mm Fisheye lens for landscapes, but they seemed to be going for extremely high prices. Canon discontinued the 15mm Fisheye lens (FOV 180°) replacing it with the 8-15mm Fisheye zoom. I did not want a zoom fisheye but noticed that 7 Artisans had a 7.5mm Fisheye lens for m43 cameras with a FOV of 180°. Looking online at where I usually buy my equipment lately I noticed a version 2 was about to come out in 2 -3 weeks with a 190° Field of View and with better optics. So I was going to order one, but my wife looked on Amazon and it was available now. So I had it in a couple of days. The featured image is 6 m43 images shot @ 7.5mm with an Olympus OM-D 1 with the 4:3 format. This was assembled in Photoshop using the images as they were taken. I also overlapped the images more than usual because of the smaller camera sensor as I was taking the images. After blending the images I used the Edit “Warp” feature in Photoshop to remove most of the fisheye effect. Depending on the image you can also get good results using Photoshop’s Adaptive Wide Angle feature under the “Filter setting”. Then use the “Edit” Transform -“Warp” feature to adjust the corners to where it diminishes most of the “Curving” in the corners. It also helps when using a Fisheye lens to have the main horizon line somewhat centered in the image to avoid the “bowing arc” of the horizon, Makes it easier to just have to deal then with the “Corners”.

6 Fisheye Images Panorama, 7 Artisans 7.5mm Lens, Olympus OMd-1, Showing Fisheye Distortion on the ends of image before using “Warp”
Single Image, 7 Artisans 7.5mm Fisheye, Olympus OM-D 1, 16 x 9 Format, Corners adjusted in Photoshop
Try to have “Horizon Line” somewhat centered in image. Otherwise it is hard to correct the “Bowing” of the”Horizon Line” without distorting more of the image.
7 artisans 7.5mm Lens on Olympus OM-D 1
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