40D v 400D... Shutter Life??

Was simply wondering the shutter life on both the Rebel XTi/400D and the 40D? I have both and just want to gauge how much life they both have. Also is there any way to keep track of the shutter count on both these cameras??

Thanks.

When 400d was released, Canon claimed a new, better shutter with 100 000 exposures.
This could be read in the White paper.
And now, Canon claims 50 000 on 400d.
Canon should be more consistent with their statements.

published numbers are meaningless, shutter can go at any time

http://www.olegkikin.c​om/shutterlife/canon_e​os400d.htm

MarKusWeB wrote in post #4026392
published numbers are meaningless, shutter can go at any time

http://www.olegkikin.c​om/shutterlife/canon_e​os400d.htm

If you look through the data you will see that it is total BS. For the 30D there are three users, Fake, mintiroso lol, and Canonista who have reported either very neay 8,000,000 or more than 8,000,000 shutter actuations. Since two of those guys reported that their shutters died at 8 million and there are only 15 reported failures, the numbers are really skewed. Doing a bit of quick math to filter those two out and the 30D failure rate drops from the over one million now showing to about 38,000 and change. Looking at the other cameras and you find similar guys posting enormous numbers. With a user name of Fake and LOL i would venture a guess that these guys are stuffing the data to make their camera look good.

haven't noticed them but yeah they seem to be fake 400D however seem more realistic

gjl711 wrote in post #4026463
If you look through the data you will see that it is total BS.

I don't think you even have to look at the data, the comparison:

'Average number of actuations after which shutter is still alive: 114,524.3
Average number of actuations after which shutter died: 9,373.6'

Is totally meaningless!

timmyeatchips wrote in post #4026508
I don't think you even have to look at the data, the comparison:

'Average number of actuations after which shutter is still alive: 114,524.3
Average number of actuations after which shutter died: 9,373.6'

Is totally meaningless!

No, that really isn't. It means that of those reporting no shutter failure they have an average of 114,524 actuations. It is assumed that that number is still counting.
However, for those who’s shutters died, it died at 9373 actuations. Thats valid data. But dig down into the numbers and you see a posting or two that off the charts, like 8,000,000 actuations. Even the 400 has one.

What would me a more interesting statistic for me would be to see the Mean Time between Failures (MTBF) on the shutter. This would give a better feel for the reliability of the shutter life.

DRBair wrote in post #4028405
What would me a more interesting statistic for me would be to see the Mean Time between Failures (MTBF) on the shutter. This would give a better feel for the reliability of the shutter life.

I believe thats the number Canon gives though I have never seen it explicitly expressed as MTTF or MTBF.

MarKusWeB wrote in post #4026392
published numbers are meaningless, shutter can go at any time

http://www.olegkikin.c​om/shutterlife/canon_e​os400d.htm

That's a very small dataset, and even if the data were genuine, I doubt if it would allow a very significant inference to be drawn.
As a general proposition, most machines follow a "bathtub" curve for failure: rates are very high initially, as those units with egregious flaws fail; they fall to a lower level for most of the duration of the design life; then rise again as parts wear out in many.

On another note, the effect of small numbers of obviously spurious data can be mitigated by considering the median time of failure, rather than the mean.

I have done almost if not more then 50,000 on my 400D does that mean it MUST die soon or could it get to 100,000 with no issue?? And how much would a new shutter cost if (Touch wood it doesnt) die?

NSWESP wrote in post #4031061
I have done almost if not more then 50,000 on my 400D does that mean it MUST die soon or could it get to 100,000 with no issue?? And how much would a new shutter cost if (Touch wood it doesnt) die?

As was pointed out, there are two curves, the one going up and the one coming down. You are in the middle and headed down. It will fail at some time but it's a total crap shoot as to when.

But is it like 100% going to die soon or could it get to 100 000 or similar?

NSWESP wrote in post #4031126
But is it like 100% going to die soon or could it get to 100 000 or similar?

At 50k actuations 1/2 of the cameras have died. Continuing onward more will die and as the number of actuations increases the odds of your failing increases as well. There is no way to predict when it will fail. I could be with the next photo, or it could last another 50k.
There are a couple of things to look out for. If you start seeing something like this: https://photography-on-the.net …php?p=3276185&p​ostcount=1
your is starting to go. Shutter replacements cost about 200~300 from what I hear. I've never had one fail.

MarKusWeB wrote in post #4026392
published numbers are meaningless, shutter can go at any time

http://www.olegkikin.c​om/shutterlife/canon_e​os400d.htm

They aren't meaningless at all. Of course, as with anything man-made, a shutter could fail at any time, but the shutter on a 1DM3 is designed to withstand far more actuations than that of the 40D, so on average, it will last much longer.