Archived posting to the Leica Users Group, 2006/12/20

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Subject: [Leica] IMG: Another Comparison
From: len-1 at comcast.net (Leonard Taupier)
Date: Wed Dec 20 08:02:10 2006
References: <7.0.1.0.2.20061220093138.0257c598@infoave.net>

Tina,

I still believe it is a dynamic range issue. That also ties in to the  
banding which also seems to originate with a point source of light  
but from the edges of the sensor.

I think you have the noise issue licked with your minus 2 stop  
exposure. The M8 appears to have much less noise at effectively ISO  
640 than the D5 at ISO 800.

I tried my suggested test with my Nikon D2X and the 85mm f1.4 and  
could not duplicate the bulbous light source. I went in and out of  
focus and up and down the exposure range. Now if somebody loaned me a  
M8 for a year or so I'd be glad to run all sorts of tests. :-)

Len


On Dec 20, 2006, at 9:39 AM, Tina Manley wrote:

> People who are interested in the M8:
>
> I'm still doing comparisons. Yesterday photographing a Hanukkah  
> celebration, I used both the 5D and the M8.  The 5D had the 85/1.2  
> lens, I set it at 800 ISO and used automatic focus.  The M8 had the  
> 75/1.4, I set it at 160 ISO and minus 2 exposure and manual focus.   
> They were both converted in SilkyPix using automatic white balance  
> and exposure compensation.  What is going on with the candle flames  
> in the Leica photo?  Is it just a difference in depth of field?   
> Did I miss the focus slightly?
>
> http://www.pbase.com/tinamanley/m85d
>
> I would love to get to the point where I could carry just the M8  
> but I'm definitely not there yet!
>
> Tina
>
>
> Tina Manley, ASMP, NPPA
> http://www.tinamanley.com
>
> _______________________________________________
> Leica Users Group.
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Replies: Reply from imagist3 at mac.com (Lottermoser George) ([Leica] IMG: Another Comparison)
In reply to: Message from images at InfoAve.Net (Tina Manley) ([Leica] IMG: Another Comparison)