Fisheye defishing and comparing

Started Apr 27, 2013 | Discussions thread
Anders W Forum Pro • Posts: 21,468
Re: Panini projection?

eques wrote:

CrisPhoto wrote:


recently I bought the Samyang 7.5/f3.5 fisheye because I wanted to see with my own eyes what can be done with such a lens. I already have the mFT 9-18mm so this lens duo might be redundant and at the end I have to decide which lens to keep ...

First day I went out and took some test pictures (unfortunately the weather and light was not good.)

There have been many threads about fisheyes and UWA lenses in this forum, but a want to show you my own results. This is not a thread about "having fun with fisheye" as such, it is more about the "defishing" theme.

I went to my favorite barn and made the following pictures:

  • Panasonic 12-35 @12mm
  • Olympus mFT 9-18mm @9mm
  • Samyang 7.5mm
  • Samyang 7.5mm defished @6mm
  • Samyang 7.5mm defished cropped to FOV 9mm
  • Samyang 7.5mm defished with "Panini" projection
  • 3x Pana12-35 (portrait orientation) stitched with "general Panini" projection

Panasonic 12-35 @12mm

Samyang 7,5mm

Samyang with "general Panini" projection (FOV 4,5mm?)

3x Pana 12-35 @12mm stitched with "general Panini" projection (FOV 4.5 again)

My current opinion is like this:

  • The fisheye is very sharp
  • It can be used as a UWA and the sharpness is acceptable like 10MPixels
  • It is very versatile. I made very astonishing "fisheyes" and some UWA pictures as well
  • Defishing rectilinear is way to extreme, needs cropping away 30%
  • Defishing with Panini projection gives very nice "instant panoramas". Sharpness is good enough for screen and medium prints and I would say it looks like 10Mpxls resolution

I would really like to hear your feedback or your experiences regarding the fisheye versatility/defishing thing.

Best regards


My opinion and experiences of the fisheye:

  1. It is indeed very sharp and delivers excellent contrast and colors.
  2. There are situations, where you can use the FE as UWA without cropping. (Landscapes without off centre straight vertical lines)
  3. It is indeed very versatile, I like to use it for close ups too.
  4. I use the FisheyeHemi plugin to PS. It just has 3 options, I use 2 or 3.

How do you do the Panini projection? This looks extremely good and IQ is nearly as good as in stitched picture.


Since the post mentions "general Panini", it is probably done by means of Hugin. The advantage of doing it that way rather than by Fisheye Hemi (which also uses Panini) is that you can vary the parameters so as to fit the individual image. For this reason, I prefer to do it with Hugin. I tried Fisheye Hemi but found that it wasn't much quicker and more restricted.

The best for me would be an LR plugin, but that isn't available at this point. I have to leave LR to do it, and since that's the case, I might as well go to Hugin as to Photoshop with Fisheye Hemi.

Some additional examples in this prior thread of mine if you are interested:

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +28 more
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