Archived posting to the Leica Users Group, 2008/06/26

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Subject: [Leica] Only about the UV/IR filters on the M8
From: hoppyman at bigpond.net.au (Geoff Hopkinson)
Date: Thu Jun 26 16:52:22 2008
References: <4AB109A52C71420B8131F60C014A7651@xyw><C488B05D.13402%mark@rabinergroup.com><000001c8d758$acc7d390$6b01a8c0@dadquad><200806261300.m5QD0ZLY025689@server1.waverley.reid.org><000a01c8d793$c8e69c60$6b01a8c0@dadquad> <200806261623.m5QGNXH0010670@server1.waverley.reid.org>

Hi Marc, just to address my comments on the UV/IR filters. I'm not sure how
you managed to miss about a gazillion discussions on this and the M8 over
the last couple of years!
Owing to its sensor design, the M8 has been proven to be very sensitive to
infrared. One result can be that synthetic fabrics (especially blacks) for
example and even skin tones can be rendered very inaccurately. This is the
oft discussed 'magenta' cast. The slightly contentious fix with the current
camera is to use Leica supplied filters which block both UV and infrared,
essentially. You can imagine I'm sure, that this displeases folks who do not
wish to use (or pay for!) any filters on principle. Leica does give you two
filters when you buy an M8 new. There are also camera firmware
accommodations in support of the filters, which introduce new complications,
especially with wide angles. The magenta effect, when it happens is dramatic
and unpleasant. The UV/IR filters and current firmware work perfectly for
me. I can show you some very clear with and without examples, if you like.
Not set up shots, simply swapping lenses while shooting. Some types of
photography are not affected at all.

Cheers
Geoff
http://www.pbase.com/hoppyman/e
http://gallery.leica-users.org/v/gh/

-----Original Message-----
Subject: RE: [Leica] Ah! Back to the Great Filter Dispute!

At 09:51 AM 6/26/2008, Geoff Hopkinson wrote:
 >.... As to the new UV/IR filters, I consider
 >those essential on the M8 for my photography. That I can illustrate
 >unequivocally. That's really a more complex issue however.

Marc said
......I fear that I am a hopeless digital klutz, and I 
haven't a clue as to what you are saying about the M8......





In reply to: Message from alal at duke.poly.edu (A. Lal) ([Leica] 21mm M Biogon question)
Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] 21mm M Biogon question)
Message from hoppyman at bigpond.net.au (Geoff Hopkinson) ([Leica] 21mm M Biogon question)
Message from marcsmall at comcast.net (Marc James Small) ([Leica] Ah! Back to the Great Filter Dispte!)
Message from hoppyman at bigpond.net.au (Geoff Hopkinson) ([Leica] Ah! Back to the Great Filter Dispute!)
Message from marcsmall at comcast.net (Marc James Small) ([Leica] Ah! Back to the Great Filter Dispute!)