Canon Canonet QL17
I have been getting back in to film over the past year and I have been lurking here recently.
I have been interested in the Canon Canonet QL17 and have been watching them on ebay. Well today I acquired one from my Father-in-Law, that he said he had purchased in Japan in 1966. It appears to be the original model with a 45mm 1.7 lens. The camera seems to function properly (I will run a roll of film through it tomorrow to see what I get). I have been online all day researching it and most of the info I have come up with deals with the giii which seems to be very similar but with a few changes - mostly the lens (40mm vs 45mm) and the battery.
I am looking for info on the battery as it seems very different from the type used in the giii. The battery door says 1.3v which I believe is the same as the giii and the battery from the camera doesn't have any info on it other then a patent #. I have posted some pictures here (sorry taken with my iphone) including the battery that I pulled out of the camera. Any help regarding the battery or any other information would be greatly appreciated.
Thanks in advance.
according to the photo, I think the battery you have is LR-50 or PX-1. But the manual said it needs 625 or PX-13. Of course any of these battery would have wrong voltage and might cause wrong exposure.
Some of the modern 1.5v batteries are, LR-50...PX-1A...A1PX.
Please note: 1.5 volt batteries will not provide accurate metering.
You may find more answers and solutions in the following links.
Small Battery Company-UK:
KEH Camera, Battery Blog:
Hope this helps,
Keep in mind that you don't need a battery for this camera. I have never put a battery in mine and have been using it for years.
If the battery is slightly different voltage than needed than act accordling.
You can use a battery adapter, like that available fro Gossen and others for voltage reduction from 1.5 to 1.3. It is a tight squeeze but they fit into a Canonet.
I think the OP may have a validly odd battery question he's asking.
If the battery in his picture came from that Canonet QL17, what is it?
It's not a PX625 format. It's much too tall for that. (I have a QL17 GIII and a freezer full of 625 mercury cells.) But references I've looked at, including Canon's historical archives, says 1.3-volt (MP) mercury. And he says the compartment door reads 1.3-volts.
The only form factor I could find that matched that voltage, used to be available in mercury, and looked similar was a PX640. But even that seems just a bit shorter. And nowhere could I find a reference to 640s in Canonets.
There is the PX27 format, but I believe the voltage is incorrect (5.6-volts in the original mercury version), even though it closely resembles the photo.
So what is that battery?
(Regarding camera model, I also note that his lens collar levers are significantly different from other QL17s.)
[Edit: See the following link for an excellent Mercury Replacement Battery Catalogue by the Small Battery Company in the UK.]
Thanks for all the responses. I have been looking into the various battery options mentioned in this thread. For the time being I am shooting with an external light meter.
Regarding the differences Ken mentioned - is it possible that they exist because the camera was purchased in 1966 in Japan and that there may have been a slightly different model released to the US and Europe?
That battery looks exactly like a PX-640 -- a 1.35v packaging of two mercury cells. I don't think it was ever intended for a Canonet but iof it fit it may have actually worked.
Re: Canon Canonet QL17
I've been using PX625A batteries for many years with no issues.