Hi,
I'm new here and need advice on a small project I am about to embark on.
I have a Pentax K-X DSLR camera that is powered by 4 x AA battery cells. Pentax do make a mains adapter for this unit which is hard to get hold of and costs around £100.00. It looks simple enough and from what I have seen it has an output of 6.5V and 3A. Connectivity is via a twin dummy AA cell unti that plugs into where two of the AA cells would sit.
I'm in the process of making the adapter unit using two AAA to AA converters and these are wired up with a CCTV tail that has a 2.1mm female power connector (pretty standard).
What I am struggling with is finding a power supply that matches the one from Pentax. Could I get away with using a PSU with a different voltage and amperage?!? There are loads of 5V PSU out there with various Amps and was wondering what I could use safely without running the risk of blowing my camera up.
I got my inspiration from a website (I can't understand what it says as it seem chinese to me!):
http://www.welcome.zaq.jp/moonlight/k-m.html
You may wonder why I want to do this? I do Astrophotography which requires long exposures and the outside temperature is generally low. I use rechargable battery's but once I start shooting I can't move anything. If the battery's die that is essentially it! A PSU unit would by pass this.
Thanks in advance.
Jaq
I'm new here and need advice on a small project I am about to embark on.
I have a Pentax K-X DSLR camera that is powered by 4 x AA battery cells. Pentax do make a mains adapter for this unit which is hard to get hold of and costs around £100.00. It looks simple enough and from what I have seen it has an output of 6.5V and 3A. Connectivity is via a twin dummy AA cell unti that plugs into where two of the AA cells would sit.
I'm in the process of making the adapter unit using two AAA to AA converters and these are wired up with a CCTV tail that has a 2.1mm female power connector (pretty standard).
What I am struggling with is finding a power supply that matches the one from Pentax. Could I get away with using a PSU with a different voltage and amperage?!? There are loads of 5V PSU out there with various Amps and was wondering what I could use safely without running the risk of blowing my camera up.
I got my inspiration from a website (I can't understand what it says as it seem chinese to me!):
http://www.welcome.zaq.jp/moonlight/k-m.html
You may wonder why I want to do this? I do Astrophotography which requires long exposures and the outside temperature is generally low. I use rechargable battery's but once I start shooting I can't move anything. If the battery's die that is essentially it! A PSU unit would by pass this.
Thanks in advance.
Jaq