[Leica] M9 sensor, 35mm frame lines

[john at mcmaster.co.nz (John McMaster)]

That sounds like bad pixels? I think Leica just maps them out, if not done 
in USA I would not like to guess when you may see your camera again :-(

The frames are set up for 1m on the M9, so at infinity they will be at their 
least accurate....

john

-----Original Message-----

Yesterday I was using an Eclipse kit to clean my M9 sensor. After going 
through three of my four remaining swabs and the routine of shooting the 
blue sky and again inspecting the result in LR, I bit the bullet and had 
Keeble and Shuchat do a $60 cleaning; they also use Eclipse. 

They phoned me this morning to say that there was some permanent strange 
stuff at the bottom of the sensor. I told them to ship it to Leica. They 
said ?no charge? for the cleaning.

I went back and looked at the sky image in LR. I had been methodically 
scanning in the Develop Module and didn?t realize that I had missed a very 
narrow band at the bottom. It was a virtual rainbow of colored dots. Had I 
seen that, I wouldn?t have even started the repeat cleaning.

I don?t see much sense in having Leica replace the sensor with another one 
that will do the same thing. I?ll probably accept whatever offer they make 
for an M and will put my spare (Leica) M9 battery up for sale.

I do have a question about Eclipse cleaning. The previous time that I 
cleaned my sensor, I did exactly what the Eclipse video shows: go across the 
sensor in one direction, return in the other direction, and you?re done. If 
a repeat treatment is needed, new swab. What about carefully returning the 
swab to it?s plastic envelope and re-using it for the next try? What say, 
Richard Man? What do you do?

Finally I want to mention another thing that surprised me. Because the 35mm 
pre-ash Summicron is usually in the camera, it was hard to photograph sky 
without a roof top or a tree getting in the picture. So, I would take two 
shots, one where I was sure the the objects on the right were not in the 
frame and one with the left side supposedly clear. What I discovered was 
that a hell of a lot of space outside of the frame lines get in the picture. 
This ordinarily wouldn?t bother me; I do my framing (cropping) in LR. But it 
surprised me, considering Leica?s claims for accuracy.

I finally did what I should have done in the first place (no brains at all), 
and used my 90mm lens for sky shooting.

Herbert Kanner
kanner at acm.org
650-326-8204