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View Full Version : Is this possible: E-5 running on 12V?


Dogcow
23rd January 2011, 04:57 PM
Does anyone here know if it is possible/feasible to have an E-5 running from a 12V battery?

This is how I should want it: Instead of having it wired to a wall outlet by means of the AC-1 adapter, I would like to have it wired to a 12 V battery by something similar for a prolonged outdoor operation.

Can't find anything in Google, so my hope is low, but you lot are much wiser than Google. *chr

photo_owl
23rd January 2011, 07:36 PM
in theory it's possible - as long as you have the right voltage and power arriving at the camera socket

the AC-1 delivers 9v - 2.5A

and you need the plug

fridgemagnet
23rd January 2011, 07:48 PM
still use the ac-1 adaptor but instead of the wall socket supply you use a mains inverter and 12v car battery or cigarette lighter in car, like this
http://www.maplin.co.uk/12v-150w-can-invertor-with-usb-socket-97788

ATB Martin:)

peak4
23rd January 2011, 08:47 PM
still use the ac-1 adaptor but instead of the wall socket supply you use a mains inverter and 12v car battery or cigarette lighter in car, like this
http://www.maplin.co.uk/12v-150w-can-invertor-with-usb-socket-97788

ATB Martin:)

But you need a fat wallet, I've just looked on ebay (http://cgi.ebay.co.uk/Olympus-E-Series-AC-1-Mains-Adapter_W0QQitemZ170589899943QQcategoryZ15215QQcmd ZViewItemQQ_trksidZp3286.m7QQ_trkparmsZalgo%3DLVI% 26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid %3D6577993706284404445) and thought someone was taking the mick until I did a Google shopping (http://www.google.co.uk/products?hl=en&q=olympus+ac-1&scoring=p) search :eek:

There's always a DIY option. Here's (http://forum.fourthirdsphoto.com/showthread.php?t=26044) a thread from the other side of the pond. There is a Maplin 12 to 7.5v adaptor (http://www.maplin.co.uk/3a-digital-car-power-adaptor-115314?tabid=1&criteria=usb&c=so&u=strat15) as well. Note that if you are going in via the battery rather than the power socket, you would need the lower 7.5 voltage.

I think I'd trial it out on something cheaper than an E-5 though.

Garrie
23rd January 2011, 08:52 PM
It's possible, I think Mark Humpage does it for his star trail photographs.

Maybes drop him a email (google his name)

Cheers
Garrie

Dogcow
23rd January 2011, 09:20 PM
Thanks for your input all.

@Martin: using an inverter is not my first choice, as it consumes an awful amount of additional power.

@Garrie: Thanks for the hint. I will certainly contact him.

photo_owl
23rd January 2011, 09:38 PM
for some reason the combination of AC-1 and invertor wasn't high on my list - despite having both!

there are loads of 12v DC to 9v DC solutions - it's a very common mobile voltage requirement - even quite small units.

http://www.maplin.co.uk/universal-3a-dc-power-supply-228639

the plug to the camera socket is tougher

Dogcow
23rd January 2011, 09:44 PM
the plug to the camera socket is tougher

Yep, I might buy an extra AC-1 just for the plug... :eek:

photo_owl
24th January 2011, 09:32 AM
Yep, I might buy an extra AC-1 just for the plug... :eek:


if you have an AC-1 then it's not a problem.

get a pair of good quality 2 core plug/sockets, cut the 2 core DC output wire and install one pair.

install appropriate half of the other on to your chosen 9v output and you can then connect your AC-1 plug to either source as required.

Dogcow
24th January 2011, 11:35 AM
Yes, I thought about that, but as I only recently purchased an AC-1 adapter, I do hesitate to cut the wire and void my warranty.

I mailed Mark Humpage and learned that he uses an inverter. So maybe that is the route to go.

Thanks all for your input. *chr