[Leica] OT: Lumix MFT 8mm is out

[henningw at archiphoto.com (Henning Wulff)]

The interpolation of even an almost optically 
perfect fisheye lens will introduce increasingly 
reduced performance into the corners. The optical 
compromises that are part of the wideangle zoom 
are not in particular in the area of distortion 
control, as that lens has significant software 
correction done on the images by the camera or 
raw conversion software. This, by the same 
argument as above, also introduces some reduction 
in performance, but to a much lesser degree than 
that introduced by correcting a fisheye image.

I've corrected the image from a 17mm fisheye that 
I use on my Leicas and a 15mm fisheye for my full 
frame Canon. They produce acceptable wideangle 
shots, but neither is close to the best I can get 
with rectilinear lenses, whether fixed or zoom. 
This might be due to deficiencies in the 
fisheyes, but judging the rectified image from an 
as yet unseen fisheye lens to be superior to a 
known excellent wideangle zoom is rather a 
stretch.


>The best thing about this is that you can make the images rectilinear
>in post processing and end up with a wide angle of better optical
>quality than the zoom at the wide end, because the fisheye does not
>have all the optical compromises built into it to try to keep
>distortion down.  It may even come with a plug-in to do this.
>
>Marty
>
>On Wed, Jun 2, 2010 at 7:12 AM, philippe.amard <philippe.amard at sfr.fr> 
>wrote:
>>  Not a fish eye Nathan - just 1mm narrower than your 7-14 at the wide end 
>> ;-)
>>  But stealthier
>>  DK what the guys at DPreviews were thinking of ...
>>  ph
>>
>>  Le 1 juin 10 ? 23:28, Nathan Wajsman a ?crit :
>>
>>>
>>>  Very real! After my trip to the US last week I have 408 images to work 
>>> on,
>>>  after culling the losers on my laptop during the trip. All taken with 
>>> the
>>>  GF-1. But the fisheye is of little interest to me. Too specialized to 
>>> spend
>>>  this kind of money.
>>>
>>>  Nathan
>>>
>>>  Nathan Wajsman
>>>  Alicante, Spain
>>>  http://www.frozenlight.eu
>>>  http://www.greatpix.eu
>>>  http://www.nathanfoto.com
>>>
>>>  Books: http://www.blurb.com/bookstore/search?search=wajsman&x=0&y=0
>>>  PICTURE OF THE WEEK: http://www.fotocycle.dk/paws
>>>  Blog: http://www.fotocycle.dk/blog
>>>
>>>
>>>
>>>
>>>
>>>
>>>  On Jun 1, 2010, at 5:16 PM, Kyle Cassidy wrote:
>>>
>>>>  Dang, this thing's turning into a real camera system, which makes
>>>>  decisions of how to spend money a lot more complex now.....
>>>>
>>>>  Philippe posted:
>>>>
>>>>
>>>>  http://dpreview.com/news/1006/10060101Pana8mmFisheye.asp
>>>>
>>>>
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>>>>
>>>
>>>
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>>>
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>>
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>>
>
>_______________________________________________
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    *            Henning J. Wulff
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