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Occasional Contributor
Posts: 8
Registered: ‎05-24-2016

Re: Weird "artifact" in 70D photos.

Thanks guys. I'll look at getting the shutter replaced. It definitely won't be as expensive as replacing the camera.

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Occasional Contributor
Posts: 8
Registered: ‎05-24-2016

Re: Weird "artifact" in 70D photos.

So, to test the theory, I decided to try something. This probably isn't any breakthrough for you guys, but I found it rather clever on my part (not knowing enough about the inner workings of the DSLR). I turned the mirror lock up to on, hit the shutter button to lock the mirror up, then gently held the mirror up while firing the shutter. I filmed it with my Samsung Note 4 doing slow motion. You can clearly see the shutter problem. 

I'm assuming this is the failing shutter, but I'll take any expert opinions here:

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Occasional Contributor
Posts: 8
Registered: ‎05-24-2016

Re: Weird "artifact" in 70D photos.

The sad thing is I only have 67,862 actuations on my shutter. 

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Respected Contributor
Posts: 1,971
Registered: ‎02-26-2015

Re: Weird "artifact" in 70D photos.


@ckjohnson72 wrote:

So, to test the theory, I decided to try something. This probably isn't any breakthrough for you guys, but I found it rather clever on my part (not knowing enough about the inner workings of the DSLR). I turned the mirror lock up to on, hit the shutter button to lock the mirror up, then gently held the mirror up while firing the shutter. I filmed it with my Samsung Note 4 doing slow motion. You can clearly see the shutter problem. 

I'm assuming this is the failing shutter, but I'll take any expert opinions here:


Yep, shutter failure.

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Honored Contributor
Posts: 5,320
Registered: ‎06-25-2014

Re: Weird "artifact" in 70D photos.


@ckjohnson72 wrote:

So, to test the theory, I decided to try something. This probably isn't any breakthrough for you guys, but I found it rather clever on my part (not knowing enough about the inner workings of the DSLR). I turned the mirror lock up to on, hit the shutter button to lock the mirror up, then gently held the mirror up while firing the shutter. I filmed it with my Samsung Note 4 doing slow motion. You can clearly see the shutter problem. 

I'm assuming this is the failing shutter, but I'll take any expert opinions here:


I think that machination falls in the "Don't try this at home" category. I can understand why you wanted to test the "theory", but every time you stick your fingers into the lens opening, you risk breaking something or, at a minimum, getting it dirty. Any broken shutter is a loose cannon (unintended pun!). and when you manipulate it, you risk scratching the sensor. You probably got away with it this time, and Canon will clean it up for you as part of the repair. (The Jamesburg shop, just to name one with which I'm familiar, does an amazing job.) But I wouldn't try something like that again.

Bob
Philadelphia, Pennsylvania USA
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Respected Contributor
Posts: 1,971
Registered: ‎02-26-2015

Re: Weird "artifact" in 70D photos.


@RobertTheFat wrote:
I think that machination falls in the "Don't try this at home" category. I can understand why you wanted to test the "theory", but every time you stick your fingers into the lens opening, you risk breaking something or, at a minimum, getting it dirty. Any broken shutter is a loose cannon (unintended pun!). and when you manipulate it, you risk scratching the sensor. You probably got away with it this time, and Canon will clean it up for you as part of the repair. (The Jamesburg shop, just to name one with which I'm familiar, does an amazing job.) But I wouldn't try something like that again.

I agree this is the second user that posted that they physically held up the mirror in their camera. This is a bad idea, that is more likely to cause more harm than good.

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Esteemed Contributor
Posts: 3,808
Registered: ‎02-17-2016

Re: Weird "artifact" in 70D photos.

[ Edited ]

Especially since mirror lock up will do exactly what they want.

(Though I am not about to see if it works with the lens off...)

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