trseattle
Active member
I have to set the date and time after removing the battery to charge on my new EM5 every time. It won't remember the setting. All other settings stay as specified in memory. Anyone else encounter this issue?
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I have to set the date and time after removing the battery to charge on my new EM5 every time. It won't remember the setting. All other settings stay as specified in memory. Anyone else encounter this issue?
That sounds most unusual, indeed. I just searched throught the E-M5 Instruction Manual PDF that I have (no Edition/Revision Number is stated in the document), and I do not find such information.No, that is not normal, have Olympus look at it. It says in the manual the date will reset to default if it's without a battery for more than 24 hours.
But I have had the battery out of mine for 5 days in a row and the date was still retained.
That sounds most unusual, indeed. I just searched throught the E-M5 Instruction Manual PDF that I have (no Edition/Revision Number is stated in the document), and I do not find such information.No, that is not normal, have Olympus look at it. It says in the manual the date will reset to default if it's without a battery for more than 24 hours.
What page did you find that information on ?
But I have had the battery out of mine for 5 days in a row and the date was still retained.
Thanks, found it:check page 99. "the camera settings will be returned to factory default settings blah blah blah for approximately 1 day"
Amazing. This makes no sense at all (if) the E-M5 actually has an internal Li-Mn button-battery. They hold a charge for up to 90 days in Panasonic cameras. It is very likely that this is an indication that Olympus E-M5 uses a capacitor (only) - which discharges relatively quickly (by comparison).
That's nice - but it only tells the OP that their's is not as nice. At any rate, it seems clear that the E-M5 very likely uses a charge-storage capacitor only - and not an internal Li-Mn button-battery.I've removed the batt from mine for 5 days straight and the date and time/settings were still retained.
Amazing. This makes no sense at all (if) the E-M5 actually has an internal Li-Mn button-battery. They hold a charge for up to 90 days in Panasonic cameras. It is very likely that this is an indication that Olympus E-M5 uses a capacitor (only) - which discharges relatively quickly (by comparison).
How do you know that the cogent information that you were glad to see retained was not stored in (non-volatile) flash-memory in the camera? Internal Li-Mn button-batteries (I think) only supply the processor's clock circuit (in the absence of main battery power) - and (I think) are not necessary in order to maintain internal memory data.I'd say defective camera, and not a design error. And every manufacturer ships out a few that will have some sort of problem.
I've not had any issues with losing the date/time, when changing batteries.
But I have had a related experience, with regard to the internal batter...but in a good way.
Last weekend I was shooting BIF, in L multi-shot mode, and the battery died during writing to the card. When I replaced the battery, the buffer resumed dumping to the card and with no errors.
Yesterday, I was firing away again at those fleeting birdies and when I stopped and turned off the camera, it did not turn off. I thought I had my first problem with camera (after close to 10,000 shots) and pulled the battery to shut the camera down. But when I re-inserted the battery, it again resumed buffer to card writing and all was good.
By now, you're speculating on an extrapolation of a surmise. It's time to call it a day.How do you know that the cogent information that you were glad to see retained was not stored in (non-volatile) flash-memory in the camera? Internal Li-Mn button-batteries (I think) only supply the processor's clock circuit (in the absence of main battery power) - and (I think) are not necessary in order to maintain internal memory data.
If/when such internal batteries fail to power that clock circuit when the main battery is removed, the time/date data is (I think) reset by the system (which determines it to be invalid) on power-up
In the case of a camera design which may only use a high-valued capacitor (as opposed to a Li-Mn battery) to power the (very low current draw) processor clock circuitry, such capacitors should be able to retain a charge for a reasonable amount of time (24 hours would not surprise me at all).![]()
Leaving such data at the mercy of an internal Li-Mn button-battery would be poor design practice.How do you know that the cogent information that you were glad to see retained was not stored in (non-volatile) flash-memory in the camera? Internal Li-Mn button-batteries (I think) only supply the processor's clock circuit (in the absence of main battery power) - and (I think) are not necessary in order to maintain internal memory data.
A system incapable of assessing whether the clock had continuously run would be unreliable.If/when such internal batteries fail to power that clock circuit when the main battery is removed, the time/date data is (I think) reset by the system (which determines it to be invalid) on power-up
When the E-M5 Manual promises not more than 24 hours retention, you can bet it's a capacitor.In the case of a camera design which may only use a high-valued capacitor (as opposed to a Li-Mn battery) to power the (very low current draw) processor clock circuitry, such capacitors should be able to retain a charge for a reasonable amount of time (24 hours would not surprise me at all).![]()
Always enlightening to hear from armchair critics. So very deep. Anything else useless to say ?By now, you're speculating on an extrapolation of a surmise. It's time to call it a day.
It happened the second day I had the camera, but hasn't happened since then.Hi,
i had the very same issue with my OMD the during the first three days after I bought it in April.
I found out, that I left the charged main-battery for too short time inside the camera during the first days. (I was unpatient and did not charge the main battery to its full extend before shooting. And so I had to recharge it more often than normal. Silly me!) So I assume the main battery could not charge the internal battery for time/date sufficiently.
But after the fully charged battery had been in place for some time the issue disappeared. And I have not discovered this problem ever since.