Hi. I'm looking for someone who can advise me on modding a Leicina Special, please.
I first wish to connect my Leicina to a microprocessor for shutter control. I have seen this discussed before here in the context of self-made intervalometers, but that was back in 2006.
Can anyone advise me on the kind of switch (and even a circuit design) I should use, please? I'm looking at using a MOSFET but have no idea if this is the best solution or how to specify it and the circuit to match the camera's shutter circuit. I have the basic camera circuit diagram that came with the Leicina's ST-1 manual.
I know the camera shutter connection pins and have tested it works by shorting across them. I have already designed a circuit that uses an opto-isolator switch but this for some reason this does not fire the shutter. My knowledge of electronics is very partial but I can make breadboards from other's designs and code the Ardiuno.
It's quite specialised as it need some knowledge of the camera as well as electronics.
Simon
NEWB - Leicina connection to microprocessor?
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Simon Lucas
- Posts: 51
- Joined: Wed Jan 30, 2013 4:23 pm
- Real name: Simon Lucas
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Simon Lucas
- Posts: 51
- Joined: Wed Jan 30, 2013 4:23 pm
- Real name: Simon Lucas
- Contact:
Re: NEWB - Leicina connection to microprocessor?
More info. The shutter circuit current is 38mA in single frame and 90mA in continuous modes. I will try and find out what kind of switching component will work. When I get a working design I will post it to the forum.
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Simon Lucas
- Posts: 51
- Joined: Wed Jan 30, 2013 4:23 pm
- Real name: Simon Lucas
- Contact:
Re: NEWB - Leicina connection to microprocessor?
[UPDATE]
First steps towards Leicina Special modification:
I have the circuit now working with a SPST Reed-relay switch (an appropriately out-of-date 1930s technology). I will post a circuit diagram with the specs. as soon as I learn to draw.
You can't see it, but in theory, I was getting single shutter activation every 100ms in my first run through pictured here:
First steps towards Leicina Special modification:
I have the circuit now working with a SPST Reed-relay switch (an appropriately out-of-date 1930s technology). I will post a circuit diagram with the specs. as soon as I learn to draw.
You can't see it, but in theory, I was getting single shutter activation every 100ms in my first run through pictured here:
Re: NEWB - Leicina connection to microprocessor?
Hi I know this is a old post .
Looking at the Leicina ST 1 manual has any one here made a breadboard ? any help here please .
https://drive.google.com/file/d/0BxR_SV ... kzc28/view
My knowledge of electronics is very partial but I can make breadboards from other's designs and code the Ardiuno.
It's quite specialised as it need some knowledge of the camera as well as electronics.
Looking at the Leicina ST 1 manual has any one here made a breadboard ? any help here please .
https://drive.google.com/file/d/0BxR_SV ... kzc28/view
My knowledge of electronics is very partial but I can make breadboards from other's designs and code the Ardiuno.
It's quite specialised as it need some knowledge of the camera as well as electronics.