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My M8 needs repair
Old 09-04-2018   #1
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My M8 needs repair

Hi,
I see a vertical line at the edge of the left side in each image today. Is it sectors that died, and should I contact Leica NJ to repair it? It is a faint line.
The purple tint is from using the 16mm Hologon.






I appreciate your advice on what to do. The M8 may not be worth repairing if it takes many months and if it costs a lot of money.
I recall having read that Leica may repair it for free or for a small amount of money if it is a few dead cells.
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Old 09-04-2018   #2
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There is a program out there and I don’t remember but you can remap your sensor. I don’t know the name of it. Maybe some one else on RFF knows what it is. If it’s not too bad I would leave it alone might cost more to repair than to find another M8 used.
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Old 09-04-2018   #3
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I agree with you. The effect seen is very minor. I could buy a Pen-F, say, and it complements my M9. I hope that someone here knows of that program that you are referring to. Thanks.

As a first step, I emailed tonight the Manager at Leica Camera NJ to ask her what she recommends me to do next about it. One person posted about sending Leica a DNG file with the issue shown in it, and then Leica would send you a firmware that is customized for the case.

I used ISO 640, and it could be that using ISO 160 results in a line that is nearly invisible.
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Old 09-04-2018   #4
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Quote:
Originally Posted by kknox View Post
There is a program out there and I don’t remember but you can remap your sensor. I don’t know the name of it. Maybe some one else on RFF knows what it is. If it’s not too bad I would leave it alone might cost more to repair than to find another M8 used.
Is it this program: https://www.pixelfixer.org/ ?
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Old 09-05-2018   #5
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If a repair or remapping is impractical there could be another solution.

Since the artifact seems very narrow (maybe just one column of pixels?) a Photoshop Action should be able to average the dead pixels with a small range of adjacent vertical pixels. This Action could be a very selective cloning operation. I suspect it would be very rare for the final result to be inferior.

All you would have to do is automatically apply the Action to every DNG or JPEG during post-production.

An extra step in your workflow is inconvenient. But this could extend its useful life.
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Old 09-05-2018   #6
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Thank you for the tip, Willie. I have never used a Photoshop Action before.

I expect the line to disappear at low ISO settings anyways. Leica Camera NJ asked me for a DNG image file when I emailed them yesterday about the dead line issue.
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Old 09-05-2018   #7
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Yes Raid that is the program/sofware I was referring to.
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Old 09-05-2018   #8
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I tried it again at ISO 160-320-640-1250. The dead line shows only at ISO 640 and 1250. The higher ISO settings seem to be affected. As I hardly ever set ISO above 320, this is maybe why I never before encountered dead lines.
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Old 09-05-2018   #9
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Hurricane Gordon
That's when I discovered the dead line.



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Old 09-05-2018   #10
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Quote:
Originally Posted by raid View Post
Hurricane Gordon
That's when I discovered the dead line.
I like that top pic!
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Old 09-05-2018   #11
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Raid, what happens if you set the ISO to 160 and then set the exposure compensation to +2 or +3? That's a trick recommended on an M8 site some years ago to give higher iso with less noise. It works very well if you're shooting DNG. Let us know how it all turns out. Good luck.
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Old 09-05-2018   #12
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I also remember a software called M8Raw2DNG that provided some ability to remap and eliminate dead pixels (which result in vertical lines). I have the software on my computer, and its free to distribute, so let me know if interested.

I haven't looked at this software for a long time now, so don't remember any details about it.
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Old 09-05-2018   #13
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Quote:
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Raid, what happens if you set the ISO to 160 and then set the exposure compensation to +2 or +3? That's a trick recommended on an M8 site some years ago to give higher iso with less noise. It works very well if you're shooting DNG. Let us know how it all turns out. Good luck.
I will check this out. Thanks. I know that deal lines only show p at ISO 640 and up. Maybe your idea works!
I will not work if I use auto exposure since images would be overexposed then. Manual exposure may work better.
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Old 09-05-2018   #14
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I also remember a software called M8Raw2DNG that provided some ability to remap and eliminate dead pixels (which result in vertical lines). I have the software on my computer, and its free to distribute, so let me know if interested.

I haven't looked at this software for a long time now, so don't remember any details about it.
Brian Sweeney uses it too. Thanks.
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Old 09-05-2018   #15
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Nice shots with that ultrawide!
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Old 09-05-2018   #16
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Thank you Emile. Once you use a Hologon it becomes a habit.
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Old 09-05-2018   #17
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update: Leica Camera NJ are unable to identify the problem when inspecting my DNG file. They need the camera to be sent to them.
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Old 09-05-2018   #18
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Quote:
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Hurricane Gordon
That's when I discovered the dead line.



Dead pixels or not, this is a lovely image!
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Old 09-05-2018   #19
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Raid, my error. It should read -2 or -3, not plus. I apologize.
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Old 09-05-2018   #20
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Quote:
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Dead pixels or not, this is a lovely image!
Thank you, Jamie.
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Old 09-05-2018   #21
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Raid, my error. It should read -2 or -3, not plus. I apologize.
I believe that you were right the first time.
With -2 or -3, all images will be underexposed.
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Old 09-05-2018   #22
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There’s an additional problem on the very right side - similar but fainter line.
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Old 09-05-2018   #23
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I had the same issue with my M8 in 2008. I sent it to NJ and they replaced or maybe remapped the sensor.
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Old 09-05-2018   #24
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It shouldn’t be that expensive to have the sensor remapped by Leica I’m pretty sure I had it done under warranty when I had an m8.
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Old 09-06-2018   #25
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Raid-

I had this with my M9 last year. Wetzlar fixed it for €74.50 plus tax = €88.66 (labour costs only, no parts)

Irritating because the old RD-1 used to be able to re-map its own sensor for free, but not too big as Leica bills go. NJ should apply similar charge I'd have thought

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Old 09-06-2018   #26
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Raid, no I was right the second time. The images are indeed underexposed but that is very adjustable with Photoshop as long as you're shooting raw. The limited edition of Capture One that shipped with the camera will do the same thing but only works really well to -2. The adjustment does not affect the color or the image quality and gives an effective ISO of 640 for -2 and 1280 for -3 (if my math is correct, and it's early so it may not be spot on). I typically leave mine set that way. The images have much less noise than shooting at either 640 or 1280.
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Old 09-06-2018   #27
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The first Hurricane Gordon sample image is lovely indeed, Raid.

There is also a series of stains on your sensor at the bottom right of it (top left on the photos).

Best of luck with the sensor remapping.
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Old 09-06-2018   #28
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...or you can just pretend it's a scratched film and live with it
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Old 09-06-2018   #29
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I will mail Leica Camera NJ my M8 to have it checked out and to assess to repair cost. I have seen posted comments on repair cost in such a dead line issue. These costs ranged from "free" to "$75" and reaching "$1500". Should be interesting to see what I amange to get.
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Old 09-06-2018   #30
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Do keep us posted. Many of us still shoot Leica's first digital rangefinder.
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Old 09-06-2018   #31
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I will. I like using my M8, so I am at least giving it a check-up for free. If I let Leica Camera do the reair depends on the cost.
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Old 09-06-2018   #32
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The first Hurricane Gordon sample image is lovely indeed, Raid.

There is also a series of stains on your sensor at the bottom right of it (top left on the photos).

Best of luck with the sensor remapping.
Thanks. Maybe, Leica Camera NJ can give me definite answers next.
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Old 09-11-2018   #33
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My M8 has arrived to Leica Camera NJ! Now I need to wait patiently for their assessment.

"Thank you for your submission to our LEICA Customer Care, the
confirmation of receipt can be found in the attachment.
We will inform you about the results of our incoming inspection shortly."
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Old 09-17-2018   #34
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I have received a repair estimate from Leica Camera NJ. It is $518.
Is it "OK" to go for it, or should I save the money and just live with the dead sensor sector?
The proposed service covers also a few other things, as shown below. Adjusting the RF and adjust the sensor may be useful service.

Error description

adjust sensor
clean sensor
adjust range finder
CCD pixel error
clean, lubrication and adjustment
leather covering
sealing ring,

____________
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Old 09-17-2018   #35
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You are getting full CLA for these money. Not just hot pixel re-map.
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Old 09-17-2018   #36
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Sounds like a reasonable price for what is essentially a full service plus repair. If you like the camera, it's less expensive than junking it and buying a comparable replacement.

(I had a Rolleiflex 2.8F serviced recently for a focusing glitch and general CLA. It cost about that same amount of money. So it's certainly not out of line for a repair cost.)

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Quote:
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I have received a repair estimate from Leica Camera NJ. It is $518.
Is it "OK" to go for it, or should I save the money and just live with the dead sensor sector?
The proposed service covers also a few other things, as shown below. Adjusting the RF and adjust the sensor may be useful service.

Error description

adjust sensor
clean sensor
adjust range finder
CCD pixel error
clean, lubrication and adjustment
leather covering
sealing ring,

____________
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Old 09-17-2018   #37
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Thank you guys. I also had similar thoughts. Since I actually love using this camera for a low ISO relaxing photography experience, it is a good deal. But I wanted to get feedback from people here. I need to send back to Leica a signed form.
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Old 09-17-2018   #38
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A full CLA? Sounds worth it to me.
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Old 09-17-2018   #39
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OK then. I will go for it. I should get back a fully funvtioning CLA'd M8 whenever they can do the work.
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Old 09-17-2018   #40
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Go for it Raid! I know you love that camera and in this way you'll be able to use it for a long time!
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