![]() As mentioned there's also a zone with heavy fringing albeit you would/SHOULD apply a circular crop anyway. Chromatic aberrations are fairly high but that's rather typical for most lenses in this class. ![]() The center quality is great and the image borders are pretty nice when stopped down a little. ![]() The image quality is almost secondary but technically it is still surprisingly high. It's also just awesome to explore this strange new extreme fisheye world. Conversely, if you find the right subject, the results are very rewarding indeed. Due to its immense image field, it will create lots of frustration because very often it's just too much really and staying out of the image is actually not as trivial as you might think. The Laowa 4mm f/2.8 circular fisheye is both difficult as well as fun to use. It does have one advantage though - you can actually use the camera grip with your hand. Thus while it is probably a better lens (based on the sample images that we have seen), it is not really an option for most users. However, the lens alone costs 799USD and, as you can see to the right below, it's quite a brick on a micro-four-thirds camera. It is an APS-C format lens but the fisheye circle is small enough to reside within the MFT image field (thus no cropping). which you could use via an (electronic) EOS-MFT adapter. Another exotic option - albeit not from a brand name perspective - is the Sigma 4.5mm f/2.8 EX SD HSM. It's even smaller than the Laowa but we've never seen this lens in shops and it goes for a hefty 499USD. It is a 3.25mm f/2.5 - and it has a fixed aperture albeit it seems as if it does offer manual focusing at least. The Laowa 4mm f/2.8 may already be hard to find on the vendor map for some but have you ever heard of iZugar? They are actually also offering a "native" micro-four-thirds lens - the iZugar MKX22 (center below). While full-frame fisheye lenses are commonplace with almost a dozen options for MFT alone, circular fisheye lenses are true exotics. From there, you move on to the perspective tool, select "rectilinear" and adjust the image until it fits your goal.īelow are two corrected images that you will also find in the sample image section above. In Hugin, you can load the base image into the tool and specify the lens (=circular fisheye), it's focal-length (=4mm) and focal-length magnification factor (=2x for Micro-Four-Thirds). In terms of quality, you shouldn't expect wonders because some image portions are extreme stretched to make it happen but it's an easy option if you are on a budget or simply for having some fun.įor the following images, we used Hugin (Freeware) which can be downloaded from HERE. This also works for full-frame fisheyes, BTW. In essence, this is about creating distortion-corrected, ultra-wide images based on the fisheye image. However, let's look a bit deeper into the de-fishing. also because the freeware options are rather limited and evaluating options simply takes quite a while. I will leave this exercise to the reader. For 360 degree images, you will have to take some images from distinct angles and stitch those images together. De-Fishing images to a normal perspectiveĪs "post-processing" implies, you will need some software to make it happen.There are at least two post-processing opportunities with such a lens:
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