[Leica] A tripod, an M8, and two candles

[jhnichols at bellsouth.net (Jim Nichols)]

Brian,

I don't wish to get into the definition of depth  of field or allowable 
circles of confusion.  However, if you go to the full size image in the 
second photo, you will notice that the highlights on the rim of the neck of 
the oil candle are not nearly as sharp as the highlights on the frame in the 
background.  This is what led me to state that the sharpest focus is behind 
the candle flame.

Jim Nichols
Tullahoma, TN USA
----- Original Message ----- 
From: "Brian Reid" <reid@mejac.palo-alto.ca.us>
To: "Leica Users Group" <lug@leica-users.org>
Sent: Sunday, January 07, 2007 11:49 AM
Subject: Re: [Leica] A tripod, an M8, and two candles


>
>> I am assuming that you were careful not to change the focus between the 
>> two shots.
>
> Correct.
>
>> I notice in the second shot that the frame in the background seems to be 
>> the plane in focus.  The IR effects are interesting, but I do not think 
>> that you have eliminated the focus question.
>
> According to the manual that came with the Noctilux, the depth of field at 
> f/5.6 at that distance (1.5 meters) is about 22cm. I believe I have 
> eliminated the focus question.
>
> (http://www.leica-camera.us/assets/file/download.php?filename=file_153.pdf,
>  
> page 6)
>
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>