Discussion Overview
The discussion revolves around building a sound-activated shutter for high-speed photography, focusing on the technical aspects of creating a circuit that can trigger a camera shutter in response to sound. Participants explore various circuit designs and compatibility with specific camera models, particularly the Nikon D80.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant expresses the desire to create a sound-activated shutter to avoid purchasing an expensive flash, noting challenges with high voltage outputs from existing circuits.
- Another participant questions the definition of "high speed shots" and emphasizes the need for sufficient light in short durations, typically achieved with flashes.
- A participant clarifies that they have an external light source adequate for their needs but that it cannot be turned on and off rapidly.
- There is a suggestion that the Nikon D80 has a remote shutter release input that could be utilized for the sound activation circuit.
- One participant confirms the camera's shutter can be triggered by connecting specific terminals and discusses the need to lower the voltage output from the circuit.
- A link to a potential circuit design is shared, with advice on using a resistor for voltage level translation, contingent on the required voltage being below 9V.
- Questions arise regarding the specifications of the resistor and the function of the MOC3020 component in the proposed circuit.
- Another participant suggests using the circuit as is, prompting inquiries about the camera's input requirements.
- A participant describes the camera jack configuration, indicating uncertainty about the voltage requirements needed to trigger the shutter.
Areas of Agreement / Disagreement
Participants have not reached a consensus on the best approach to build the sound-activated shutter, with various suggestions and uncertainties regarding circuit specifications and camera compatibility remaining unresolved.
Contextual Notes
Limitations include unclear voltage requirements for the camera shutter input and the need for further clarification on the circuit components and their functions.