[Leica] How IR filters affect M8 B&W

[rgacpa at yahoo.com (Bob Adler)]

I like Peter's test and will try it myself, but under different conditions; 
the conditions I mostly shoot under. Incandescent light and outside (not 
quite sure where I'll get a mirror for that; perhaps I'll find another 
subject...). I may also try it on a tripod for a landscape as I use the M 
for when I travel.
But I like Peter's thinking and approach. I'll give it a whirl for the type 
of shooting I do to see if there is such a marked difference as Peter got.
I would encourage any of you to try the same and let us all know what you 
find.
Bob

?Bob Adler
Palo Alto, CA
http://www..raflexions.com



----- Original Message ----
From: Lottermoser George <imagist3@mac.com>
To: Leica Users Group <lug@leica-users.org>
Sent: Tuesday, June 17, 2008 8:46:35 AM
Subject: Re: [Leica] How IR filters affect M8 B&W

Peter's test shows us what this lens will do wide open, hand held, by? 
Peter, at a 360th of a second, with and without a filter.

Locking the camera down on a solid tripod, stopping down to where the? 
IR wave lengths will also be in focus "may" very well provide a? 
different result. All of us with M8's could spend time testing our? 
various lenses, with and without filters, at various apertures,? 
focused on various subjects, with various amounts of IR present.

When discussing sharpness and contrast camera movement and subject? 
movement must be absolutely removed from the equation (as much as is? 
humanly possible).

Peter's test, while interesting and informative, certainly did not? 
reduce camera and subject movement to anywhere near zero.

Fond regards,
George
george@imagist.com
www.imagist.com
http://www.imagist.com/blog
Picture A Week - www.imagist.com/paw_07



On Jun 17, 2008, at 10:24 AM, Steve Barbour wrote:

> what started all this is the vague memory of several of us (or was? 
> it confabulation?) that without IR filters,? bw on the M8 is in? 
> fact slightly improved, sharper, more contrasty thanks to the IR rays,
>
> anybody know about this?


_______________________________________________
Leica Users Group.
See http://leica-users.org/mailman/listinfo/lug for more information