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04-13-2014, 01:42 PM   #61
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A myth for the "right" brand always beats up a real Pentax product.
Because PentaxIsDoomed.

04-13-2014, 01:51 PM - 1 Like   #62
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QuoteOriginally posted by Kunzite Quote
Except the new sensor. And the new AF system. And the ability to shoot at 3fps with a decent buffer. And the FluCard wireless tethering. And the movie mode, and Live View with focus peaking. And the price.
Apart from that, I guess there's nothing new. And being the only stabilized solution in the DMF market I guess it's unimportant
This almost "sounds" like a reply from Sheldon in the Big Bang Theory ... but a very good reply !

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04-13-2014, 02:03 PM   #63
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More like a "what have the Romans ever done for us" reply, I'd say
04-13-2014, 02:56 PM   #64
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4k madness

So you have a camera with a shutter that has a lifespan off 60k images and you put in 4k interval mode. You think anyone in his right mind would use it?

04-13-2014, 03:13 PM   #65
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QuoteOriginally posted by RonHendriks1966 Quote
So you have a camera with a shutter that has a lifespan off 60k images and you put in 4k interval mode. You think anyone in his right mind would use it?
At a company I used to work at (film vfx), we had a stockpile of 5d mk iii's, which would routinely get retired and given away to staff once they hit 150,000 actuations. For most people there, 150k was the target, not the limit
04-14-2014, 03:11 AM   #66
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QuoteOriginally posted by robthebloke Quote
At a company I used to work at (film vfx), we had a stockpile of 5d mk iii's, which would routinely get retired and given away to staff once they hit 150,000 actuations. For most people there, 150k was the target, not the limit
Ouch, I know I would have that target too..
04-14-2014, 03:14 AM   #67
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wasn't that shutter lifespan increased with 645Z? in some posts it was mentioned to be as high as 100k..? not still a good idea to shoot 4K interval video, or is it?
04-14-2014, 04:46 AM   #68
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On a $8500 camera it still pays to get the shutter replaced.

04-14-2014, 05:17 AM   #69
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So what if the 645D in 4K interval mode does not use the mechanical shutter at all, but instead utilizes a CMOS with a global shutter? In that case the shutter can stay open 100% of the time, with the mirror fixed in the up position. No mechanical wear and tear in this case, only wear of the electronic components..
04-14-2014, 10:13 AM   #70
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QuoteOriginally posted by RonHendriks1966 Quote
So you have a camera with a shutter that has a lifespan off 60k images and you put in 4k interval mode. You think anyone in his right mind would use it?
This myth will never end. It is not lifespan, but the span the shutter is "guaranteed" to be within manufacturers specifications without service or adjustment....
04-14-2014, 10:28 AM   #71
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shutter life expectancy seems to be highly speculative and perhaps influenced by the company trying to avoid possible warranty costs.

Here's a database of users who have provided their results for the 5D MkII. I just picked that because it seemed to have been a popular camera and was a FF, no MF data is provided in the database:

canon eos 5dmkii | Camera Shutter Life Database

According to that data, the AVERAGE shutter actuations after a failure was about 380,000 for a 5D Mkii

For a Nikon D3, average failure was after 663,000 actuations,

The problem with that reporting, i would suspect, is that many people are not reporting, except if they have a failure, and many others are selling cameras, etc.
04-14-2014, 11:05 AM   #72
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QuoteOriginally posted by philbaum Quote
shutter life expectancy seems to be highly speculative and perhaps influenced by the company trying to avoid possible warranty costs.

Here's a database of users who have provided their results for the 5D MkII. I just picked that because it seemed to have been a popular camera and was a FF, no MF data is provided in the database:

canon eos 5dmkii | Camera Shutter Life Database

According to that data, the AVERAGE shutter actuations after a failure was about 380,000 for a 5D Mkii

For a Nikon D3, average failure was after 663,000 actuations,

The problem with that reporting, i would suspect, is that many people are not reporting, except if they have a failure, and many others are selling cameras, etc.
So, going by those figures, the average real shutter life is a little over double the rated value (150k for the 5D2, 300k for the D3).

Extrapolating from that, a 50k rated shutter (original 645D) would be expected to fail somewhere a little over 100k actuations, giving you maybe around 1 hour 15 minutes worth of unedited timelapse video played back at the slowest framerate in common use (24 fps) over the whole lifespan of the shutter, assuming you don't use the camera for stills.

Yeah, doesn't sound like a good idea to me, unless they dramatically increased the shutter durability over the 645D

Last edited by Cannikin; 04-14-2014 at 12:14 PM.
04-14-2014, 11:15 AM   #73
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QuoteOriginally posted by Pål Jensen Quote
This myth will never end. It is not lifespan, but the span the shutter is "guaranteed" to be within manufacturers specifications without service or adjustment....
I know, but what if this service is costing like $500 for a first service (just aligning) and &1000 for a second (replacing). Then you can make with just only one allignment for $ 9000 (camera plus service) only 30 full length timelapsemovies. Pretty expensive.
04-14-2014, 11:17 AM   #74
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We should know 100% for sure later today.
04-14-2014, 11:58 AM   #75
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QuoteOriginally posted by RonHendriks1966 Quote
I know, but what if this service is costing like $500 for a first service (just aligning) and &1000 for a second (replacing). Then you can make with just only one allignment for $ 9000 (camera plus service) only 30 full length timelapsemovies. Pretty expensive.
Hopefully anyone committing to a project that involves thousands of shutter actuations of their $9000 camera is charging someone appropriately to cover the wear and tear or has a spouse with a fantastic job to pay for their $9000 camera per day habits.

I'd think Asahiflex's suggestion seemed likely. Some kind of high resolution slow frame rate video mode where the shutter stays open. We'll see I suppose.
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