Archived posting to the Leica Users Group, 2004/11/12

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Subject: [Leica] DMR: Hands on
From: Frank.Dernie at btinternet.com (Frank Dernie)
Date: Fri Nov 12 10:23:30 2004
References: <BDB96271.1C360%telyt@earthlink.net> <C2236AF8-33A9-11D9-B1BC-00306599C552@earthlink.net>

Does anybody know how this works? As far as I remember, in digital 
sampling if the low pass filter is not applied before digitising it is 
not possible to separate valid data from aliasing artefacts.
Frank

On 11 Nov, 2004, at 06:20, Feli di Giorgio wrote:

>> The moire filter is in software, not hardware.  The idea behind this 
>> is to
>> maximize image quality in most situations, and use the software moire 
>> filter
>> only when nessesary, such as with fabrics or other fine patterns like
>> distant picket fences.  Other camera makers use a hardware moire 
>> filter
>> which softens the image.
>
> Thanks Doug, sounds very encouraging.
>
> Canon uses a fairly aggressive hardware filter and people often 
> complain
> that it results in softer images.
>
> Nikon's D70 uses a similar approach as Leica, resulting in very sharp 
> images,
> but sometimes you have to massage the files a little more in your RAW 
> software.
> Personally I think this is the way to go. I like to start out with as 
> much information
> as possible from the capture device and fiddle with it myself. Imacon 
> is a very
> experienced company and I'm sure they will get this right.
>
> Feli
>
>
> _______________________________________________________
> feli2@earthlink.net                    2 + 2 = 4                   
> www.elanphotos.com
>
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Replies: Reply from abridge at gmail.com (Adam Bridge) ([Leica] DMR: Hands on)
In reply to: Message from telyt at earthlink.net (Doug Herr) ([Leica] DMR: Hands on)
Message from feli2 at earthlink.net (Feli di Giorgio) ([Leica] DMR: Hands on)