battery adapter

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75RR
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battery adapter

#1 Post by 75RR » Sat May 02, 2020 8:58 am

Anyone come across a battery adapter that connects to an external power supply for the olympus E-P2 M4/3

Can't seem to find one anywhere.
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Chris Dee
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Re: battery adapter

#2 Post by Chris Dee » Sat May 02, 2020 12:22 pm

eBay item number 323470694306
HTH.

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Re: battery adapter

#3 Post by 75RR » Sat May 02, 2020 12:32 pm

Thanks for looking. Unfortunately the ID is not recognized by ebay (no matches found)
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Re: battery adapter

#4 Post by Chris Dee » Sat May 02, 2020 12:43 pm

Try this link (UK eBay, but should ship to Spain as its a Chinese seller): https://www.ebay.co.uk/itm/AC-Power-Ada ... SwBBpbrPXA

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Re: battery adapter

#5 Post by 75RR » Sat May 02, 2020 12:50 pm

Got it! Many thanks :)
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Re: battery adapter

#6 Post by Roldorf » Sat May 02, 2020 12:57 pm

Try here:

https://www.amazon.de/Prettyia-PS-BLS1- ... 211&sr=8-3

Sorry it's in Germany but I would think amazon in Spain will have the same thing.
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Re: battery adapter

#7 Post by Roldorf » Sat May 02, 2020 1:08 pm

Spain Availability

https://www.amazon.es/Prettyia-PS-BLS1- ... 211&sr=8-3

Says they have 3 in stock. You will probably get it a lot quicker than from china.
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Re: battery adapter

#8 Post by 75RR » Sat May 02, 2020 1:13 pm

Thanks guys, must have been putting in the wrong search parameters!

You would think they would know what 'thingy' meant ;)

Have one on the way :)
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Re: battery adapter

#9 Post by jfiresto » Sat May 02, 2020 7:20 pm

Should you need an alternative, I can track down the one I bought from China about a year ago.

I run my Olympus E-PLx cameras off a 7.5VDC power supply. Panasonic µ4/3rds cameras are more finicky.
-John

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Re: battery adapter

#10 Post by 75RR » Sat May 02, 2020 7:37 pm

Thanks for the offer. I placed an order for one from china before I saw Roldorf's post so a little patience and I am basically sorted.
I run my Olympia E-PLx cameras off a 7.5VDC power supply.
Shop bought or jury-rigged?
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Re: battery adapter

#11 Post by jfiresto » Sat May 02, 2020 7:56 pm

75RR wrote:
Sat May 02, 2020 7:37 pm
I run my Olympia E-PLx cameras off a 7.5VDC power supply.
Shop bought or jury-rigged?
Store bought, this Mean Well GSM25B07. I prefer two-pin plug, table top power supplies that do not clutter electrical outlets, and do not mind spending a few more euros to get a high reliability, medical grade power supply.
-John

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Re: battery adapter

#12 Post by 75RR » Sat May 02, 2020 8:11 pm

See what you mean. That does look more dependable than a usb plug, easy to run out of usb sockets as well, something to think about.
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Re: battery adapter

#13 Post by jfiresto » Sun May 03, 2020 9:50 am

75RR wrote:
Sat May 02, 2020 8:11 pm
See what you mean. That does look more dependable than a usb plug, easy to run out of usb sockets as well, something to think about.
I also think about electrical safety, although this should not be a problem if you power your adapter from a computer or USB hub from an established maker. I and my kith and kin have gotten enough shocks from cheap, switch mode AC power supplies to convince us they are a poor investment. A medical power supply is probably more than anyone needs, but I have other reasons for spending a little more for one.

If you need me to run any tests, I have an E-PL1 which is the light version of your E-P2. It lacks leveling lines and a 1/4000 s shutter, which should be of no consequence when mounted on a microscope. Curiously, it does have a handy, separate button for starting and stopping movies.
-John

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Re: battery adapter

#14 Post by 75RR » Sun May 03, 2020 3:02 pm

Thanks jfiresto, most kind. I'll wait and see if I have any problems first. ETA is June/July, will post when it arrives. Thanks again.
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Re: battery adapter

#15 Post by 75RR » Fri Jun 12, 2020 11:35 am

Heads up as promised. Picked it up at the Post Office today.

Did a quick check - ran some video off the power supply - looks good.

Camera battery door construction is not really conducive to making holes in it so have removed it.

Thanks to all :)
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Re: battery adapter

#16 Post by Hobbyst46 » Fri Jun 12, 2020 2:41 pm

Congratulations on getting the AC adapter. Important upgrade.
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Re: battery adapter

#17 Post by 75RR » Fri Jun 12, 2020 3:05 pm

Thanks Hobbyst46,

it will make quite a difference as not only do the batteries seem to run out at the most inconvenient moment,

but the way it attaches to the focusing rail means I have to remove it in order to open the battery compartment, which of course entails setting the camera up all over again!
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Re: battery adapter

#18 Post by jfiresto » Fri Jun 12, 2020 4:13 pm

Good job.

Would it be possible to mount the camera to the microscope and have it cast an image directly on to the E-P2's sensor? The PEN cameras have a pretty effective anti-shock setting to avoid shutter shock.
-John

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Re: battery adapter

#19 Post by 75RR » Fri Jun 12, 2020 4:39 pm

Must admit I have not tried the anti-shock setting (had to get the manual out)

This is what it says:

"ANTI-SHOCK
You can select the interval between fully pressing the shutter button and releasing the shutter to be anywhere from 1/8 to 30 seconds.
This diminishes camera shake caused by vibrations. This feature is useful in situations such as microscope photography and astrophotography."


I use a shutter release cable - do you think the anti-shock would be an improvement?
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Re: battery adapter

#20 Post by jfiresto » Fri Jun 12, 2020 5:37 pm

75RR wrote:
Fri Jun 12, 2020 4:39 pm
I use a shutter release cable - do you think the anti-shock would be an improvement?
It can make a noticeable difference if you happen to choose an unfavorable, intermediate exposure time. My first week with the PL1, I think I discovered all the times that maximally smeared its images. Then I searched the manual for "microscope" and read about ANTI-SHOCK. 8-)
-John

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Re: battery adapter

#21 Post by 75RR » Fri Jun 12, 2020 5:44 pm

My read is that the delay is to allow any vibration caused by pressing the shutter button to dissipate before activating the shutter. Is that right?
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Re: battery adapter

#22 Post by jfiresto » Fri Jun 12, 2020 6:14 pm

I use the self timer for that.

The camera, when it takes a picture, closes the shutter, rolls it open and then rolls it closed. The first close slams the shutter to its limit and vibrates the camera. If ANTI-SHOCK is on, the camera briefly waits, to let the vibration die away (you can choose how long), then rolls open and close the shutter, and exposes the sensor. Note that final close also slams the shutter and vibrates the camera, but by then, the sensor is dark and the camera has already finished taking the picture.
-John

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Re: battery adapter

#23 Post by 75RR » Fri Jun 12, 2020 6:22 pm

jfiresto wrote:
Fri Jun 12, 2020 6:14 pm
I use the self timer for that.

The camera, when it takes a picture, closes the shutter, rolls it open and then rolls it closed. The first close slams the shutter to its limit and vibrates the camera. If ANTI-SHOCK is on, the camera briefly waits, to let the vibration die away (you can choose how long), then rolls open and close the shutter, and exposes the sensor. Note that final close also slams the shutter and vibrates the camera, but by then, the sensor is dark and the camera has already finished taking the picture.
Thanks for the translation. That does make it more worthwhile. Will have a go and see if it helps.

As to putting the camera on the microscope and projecting onto the sensor - it is something I have been thinking about. Would require a couple of parts I don't have so it would be a long term project.
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Re: battery adapter

#24 Post by 75RR » Sun Jun 14, 2020 2:30 am

Update: Got a couple of electric shocks when touching the camera during yesterday's session! Any suggestions?

Camera `battery´ module is plugged into my monitor's usb port.
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Re: battery adapter

#25 Post by MichaelG. » Sun Jun 14, 2020 4:59 am

75RR wrote:
Fri Jun 12, 2020 6:22 pm
jfiresto wrote:
Fri Jun 12, 2020 6:14 pm
I use the self timer for that.

The camera, when it takes a picture, closes the shutter, rolls it open and then rolls it closed. The first close slams the shutter to its limit and vibrates the camera. If ANTI-SHOCK is on, the camera briefly waits, to let the vibration die away (you can choose how long), then rolls open and close the shutter, and exposes the sensor. Note that final close also slams the shutter and vibrates the camera, but by then, the sensor is dark and the camera has already finished taking the picture.
Thanks for the translation. That does make it more worthwhile. Will have a go and see if it helps.
.
If you haven’t seen it before ...
This video of the original Lumix G1 shutter in action is worth a look:
https://youtu.be/-dK6Qa1Iy4Y

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Re: battery adapter

#26 Post by 75RR » Sun Jun 14, 2020 6:11 am

Thanks MichaelG., ran a quick test of the anti-shock, no striking difference so far. Probably because the camera is isolated from the microscope.

Will do another assessment (this time with Kemp's 8 form test slide) later.

A better test and perhaps the only worthwhile one, would be with the camera attached to the microscope but I lack the parts to do that.



Meanwhile any suggestions on the real shock - as in electric, will be appreciated :) posting.php?f=9&mode=reply&t=9273&sid=8 ... 31#pr82182
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Re: battery adapter

#27 Post by Hobbyst46 » Sun Jun 14, 2020 7:10 am

75RR wrote:
Sun Jun 14, 2020 6:11 am
Meanwhile any suggestions on the real shock - as in electric, will be appreciated :) posting.php?f=9&mode=reply&t=9273&sid=8 ... 31#pr82182
Annoying !
Cannot explain the shock, but here is my doubt:
My AC adapter is a dummy battery, plugged into a 7.4V, 2A power supply which is fed from a 220VAC wall wart. The Olympus E-P2 uses a BLS-1 battery of 7.4V also, whereas USBs usually provide 5V. It seems that the hard to get part of the AC adapter is the specific dummy battery. So perhaps you could team the dummy battery with a PS from another source ? instead of USB power from the monitor ?
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Re: battery adapter

#28 Post by 75RR » Sun Jun 14, 2020 7:18 am

Hobbyst46 wrote:
Sun Jun 14, 2020 7:10 am
75RR wrote:
Sun Jun 14, 2020 6:11 am
Meanwhile any suggestions on the real shock - as in electric, will be appreciated :) posting.php?f=9&mode=reply&t=9273&sid=8 ... 31#pr82182
Annoying !
Cannot explain the shock, but here is my doubt:
My AC adapter is a dummy battery, plugged into a 7.4V, 2A power supply which is fed from a 220VAC wall wart. The Olympus E-P2 uses a BLS-1 battery of 7.4V also, whereas USBs usually provide 5V. It seems that the hard to get part of the AC adapter is the specific dummy battery. So perhaps you could team the dummy battery with a PS from another source ? instead of USB power from the monitor ?
Agree! Will check the ground in the wall socket, the power strip and the UPS ...
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Re: battery adapter

#29 Post by hans » Sun Jun 14, 2020 9:56 am

Meanwhile any suggestions on the real shock - as in electric, will be appreciated :)
What exactly were you touching? (Including type of floor surface, footwear, any metal furniture you were leaning against, etc.)

Was there any noticeably 50/60 Hz buzz sensation or just a sharp tingle?

Is all your equipment ultimately connected to the same wall socket?

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Re: battery adapter

#30 Post by 75RR » Sun Jun 14, 2020 10:35 am

hans wrote:
Sun Jun 14, 2020 9:56 am
Meanwhile any suggestions on the real shock - as in electric, will be appreciated :)
What exactly were you touching? (Including type of floor surface, footwear, any metal furniture you were leaning against, etc.)

Was there any noticeably 50/60 Hz buzz sensation or just a sharp tingle?

Is all your equipment ultimately connected to the same wall socket?
Could well be an electrostatic discharge. More than a tingle, made me jump.

After the 2nd shock starting using a pencil to press the buttons on the camera.

Wearing plastic sandals and have a nylon carpet under my chair.

Had a discharge touching the toaster oven a couple of days ago.

Wonder if the earth on the mains electricity in the apartment is not well grounded.
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