Archived posting to the Leica Users Group, 2007/02/05

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Subject: [Leica] IMG: More IR on M8
From: Jim at hemenway.com (Jim Hemenway)
Date: Mon Feb 5 03:03:04 2007
References: <0932DE6E-3A64-4FF4-A525-D284D1DA3D84@mac.com>

Bob:

Love the infrared shots.  I'd get an M8 for that alone if I had the $$$$$.

Jim


Robert Rose wrote:

> Some more IR images, from the Getty Museum in Los Angeles.
> 
> http://gallery.leica-users.org/v/rjrose/IR/L1000407.jpg.html
> http://gallery.leica-users.org/v/rjrose/IR/L1000412.jpg.html
> http://gallery.leica-users.org/v/rjrose/IR/L1000421.jpg.html
> 
> There are two non-IR images in the same album, to compare.  Which do  
> you think works better?
> 
> The amount of exposure necessary really varies throughout the day.   The 
> A setting does a good job on exposure.  At times really high ISO  is 
> needed, but the noise ("grain") reminds me of the grain from Kodak  High 
> Speed Infrared.
> 
> A red filter doesn't seem to work well.
> 
> Some of the images (not these) are fuzzy.  I am pretty sure that it  is 
> not focus shift; perhaps it is a cousin to blooming that occurs in  IR 
> film.  Sharpening helps, as does slight underexposure.
> 
> I am using Adobe Camera Raw to open the DNG file.  I turn on the  
> clipping warnings, and then adjust the Temperature and tint to  minimize 
> clipping.  Then I use Nik Color Efex Pro; BW Conversion  Tonal Enhancer 
> to convert to BW, and then do a final adjustment using  Levels.  
> Bringing the middle slider up seems to make the image more  dramatic.
> 
> Lots of fun research ahead.
> 
> Cheers,
> Bob Rose
> 
> 
> Robert Rose
> robert.rose@mac.com
> Experience should teach us to be most on our guard to protect liberty  
> when the government's purposes are beneficent. Men born to freedom  are 
> naturally alert to repel invasion of their liberty by evil-minded  
> rulers. The greatest dangers to liberty lurk in insidious  encroachment 
> by men of zeal, well-meaning but without understanding.   Louis 
> Brandeis, Olmstead v. US (1928)
> 
> 
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In reply to: Message from robert.rose at mac.com (Robert Rose) ([Leica] IMG: More IR on M8)