Archived posting to the Leica Users Group, 2010/06/01

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Subject: [Leica] OT: Lumix MFT 8mm is out
From: benedenia at gmail.com (Marty Deveney)
Date: Wed, 2 Jun 2010 16:24:29 +0930
References: <9F07836ED74F1C42AA69DFBAF8A1E2F13A2AB68257@MBX1.asc.local> <770C9943-C8CB-4CD5-946C-F71170204B2F@frozenlight.eu> <D0552962-5200-47A1-BB8E-E77E8892E841@sfr.fr> <AANLkTilb_6zHmcdcLcrmxOA4nddCyRjzdBJkNYT3VQTx@mail.gmail.com> <p06230913c82ba6a22d86@10.0.1.7>

Henning,

Of course; but I can still see some significant areas where a
well-designed and optically good fisheye has advantages.

Marty

On Wed, Jun 2, 2010 at 3:52 PM, Henning Wulff <henningw at archiphoto.com> 
wrote:
> 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
>>>>>
>>>>>
>>>>> ?_______________________________________________
>>>>> ?Leica Users Group.
>>>>> ?See http://leica-users.org/mailman/listinfo/lug for more information
>>>>>
>>>>
>>>>
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>>>>
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>>>
>>> ?_______________________________________________
>>> ?Leica Users Group.
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>>>
>>
>> _______________________________________________
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>
> --
>
> ? * ? ? ? ? ? ?Henning J. Wulff
> ?/|\ ? ? ?Wulff Photography & Design
> ?/###\ ? mailto:henningw at archiphoto.com
> ?|[ ]| ? ? http://www.archiphoto.com
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>


Replies: Reply from lug at steveunsworth.co.uk (Steve Unsworth) ([Leica] OT: Lumix MFT 8mm is out)
In reply to: Message from kcassidy at asc.upenn.edu (Kyle Cassidy) ([Leica] OT: Lumix MFT 8mm is out)
Message from photo at frozenlight.eu (Nathan Wajsman) ([Leica] OT: Lumix MFT 8mm is out)
Message from philippe.amard at sfr.fr (philippe.amard) ([Leica] OT: Lumix MFT 8mm is out)
Message from benedenia at gmail.com (Marty Deveney) ([Leica] OT: Lumix MFT 8mm is out)