Diagnosis please - M body problem

[matt_sachs]

Greetings,

 

I purchased a used 50mm Noctilux f1 and put it on my M7 body earlier

this week; brick red vertical exposure stripes/bands are appearing

now (typically 2 of them, fairly dense, each approx 1/4-1/5 the

frame). It also happens now with my 35mm 'Lux 1.4 that I've had for

months and had not noticed was causing a problem previously. As I

stop down with either lens, the stripes lose intensity.

 

I expect its time to send it to Leica for Passport repair. But I feel

it is important to know what causes this.

 

Thank you for any information you might have on this problem.

[henry_ting2]

I think your problem has nothing to do with the lens.

Have the shutter curtain checked. I suspect the shutter tensioning brakes are off and the shutter is bouncing.

[matt_sachs]

Sorry if I wasn't clear. I don't thinks it's a lens issue, since it is happening with both lenses.

[gary voth]

Ahh... are the first M7 shutter-related problems starting to surface? This will send the traditionalists into a tizzy.

[alain_besancon]

Matt,

 

Is it possible you show us one of these pictures?

I had problems not so far from yours with a M6-TTL, just came back from Leica France but with no explanation. I also suspected a shutter problem but ???

Alain

[dan_brown4]

M7 shutter problems, OH MY! (visuallize me running around my

office in frantic circles) whatever will become of us! M6, of

course!!

 

Just kidding ;-)

[matt_sachs]

Note the red swath in the center of this this image. Formal test images and negs sent to Leica with camera.<div></div>

[matt_sachs]

In case that image is difficult to interpret, I adjusted levels and contrast in photoshop (no color-specific adjustments)<div></div>

[matt_sachs]

The answer was revealed subsequently: it is an electric lighting artifact that occurs in some sporting arenas with fast shutter speeds and the slow-synch M shutter.

 

See:

 

http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=0045j1