Archived posting to the Leica Users Group, 2007/04/03

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Subject: [Leica] Re: new M8 IR filter report
From: lists at sololeicas.com (Eduardo Albesi)
Date: Tue Apr 3 16:10:43 2007
References: <Pine.LNX.4.62.0704031220240.31164@mail.2alpha.com> <2DFDFCE7-CDCA-4C96-85FA-844AC63E2B80@ciudad.com.ar> <4E5E5E0A-A426-4622-8A74-179C0E4DBF3C@mac.com>

Sorry for the use of the 'smart' term, I can see that was not the  
proper one. English is not even my third language...

But using the filters, firstly, images come up consistently sharper,  
due to the reduction of the out of focus IR glow. The IR focal plane  
is somewhat different than the one in visible light, so there is a  
superposition of the unsharp near-IR and sharp visible-light images  
when you don't use the IRcut filters, and this shows up as an OOF  
glow around IR reflecting objects, typically foliage.

Secondly, i find also consistently that colours both in natural light  
and in artificial light other than fluorescent are always very  
slightly off. You notice this especially when comparing two images  
with and without the filter mounted.

So, I think the filters, even without firmware 1.10 yet, are a must.  
I have yet to find an inner surface glare/reflection so strong as to  
totally handicap a photograph or even to be noticed.

Just my experiece, YMMV, etc.

Best,

Ed

El 03/04/2007, a las 17:46, Lottermoser George escribi?:

> I'm not sure it's a a matter of smart or not smart.
>
> I think it will come down to a matter of "taste," subject matters,  
> and working variables.
>
> I have not yet received my filters, but I have the feeling, without  
> having tested them within my work flow, that I'll be one of the "on  
> and off according to conditions" types.
>
> However, I'm totally open to being wowed by the "improvement"  
> within my current methodology and may very well become and "always  
> on" kind of M8 user.
>
> We have yet to see what the 1.10 firmware will add to the mix.  
> Rumor has it that with 1.10 firmware coding and IR filtration will  
> become "the" required working method for maximum quality. Meaning  
> that if you're not using IR filters and coded lenses the IR issues  
> may actually worsen with the updated firmware. But it remains  
> speculation at this moment. In that regard Erwin's speaking a bit  
> early and may need to revise his tests with the new firmware.
>
> Then again we may never see firmware 1.10 ;~)
>
> Regards,
> George Lottermoser
> george@imagist.com
>
>
>
> On Apr 3, 2007, at 3:01 PM, Eduardo Albesi wrote:
>
>> Am I the only one to find Erwin's suggestion about not using the  
>> filters in general 'non-IR conditions' not that smart?
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



Replies: Reply from imagist3 at mac.com (Lottermoser George) ([Leica] Re: new M8 IR filter report)
In reply to: Message from pklein at 2alpha.net (Peter Klein) ([Leica] Re: new M8 IR filter report)
Message from eduardoalbesi at ciudad.com.ar (Eduardo Albesi) ([Leica] Re: new M8 IR filter report)
Message from imagist3 at mac.com (Lottermoser George) ([Leica] Re: new M8 IR filter report)