A document ys to be reproduced using a duplicating camera where should the document be placed in order to obtain an exact copy
at the point which is twice the focal length of the lens of the camera
At a point which is twice the focal length of the lens
To obtain an exact copy using a duplicating camera, follow these steps:
1. Prepare the duplicating camera: Start by ensuring that the duplicating camera is set up and ready to use. Make sure that the camera's lens is clean and that all necessary adjustments have been made, such as focus and exposure settings.
2. Place the original document: Position the original document face down on the glass platen of the duplicating camera. Make sure the document is centered and aligned properly.
3. Secure the document: If your duplicating camera has a document holder, use it to keep the document in place. Otherwise, you may need to use weights or clips to prevent the document from moving during scanning.
4. Align the document: Adjust the position and orientation of the document until it is exactly as desired for reproduction. Make sure any text or images are straight and positioned correctly.
5. Close the lid: Once the document is correctly positioned, carefully lower the lid of the duplicating camera and ensure that it is securely closed. This will prevent any ambient light from affecting the reproduction.
6. Capture the image: If your duplicating camera requires manual settings, adjust the settings as required based on the camera's instructions. Then, press the shutter release button or activate the scan function to capture the image. Some duplicating cameras may require you to manually move the document or the camera to achieve the desired result.
7. Review the reproduction: After capturing the image, check the preview or develop the reproduction to ensure it is an exact copy of the original document. Adjustments may be necessary for brightness, contrast, or other factors depending on the camera and desired outcome.
Note: It's important to consult the specific manual or guidelines for the duplicating camera you are using, as different models may have unique instructions for the specific placement of documents and any required adjustments.
To obtain an exact copy of a document using a duplicating camera, you should place the document on the copyboard or platen glass of the camera. The exact location may vary depending on the specific make and model of the duplicating camera, but the general process is as follows:
1. Open the duplicating camera: Begin by opening the lid or cover of the duplicating camera to access the copyboard or platen glass.
2. Clean the copyboard or platen glass: Ensure that the copyboard or platen glass is clean and free from any dust or debris. Use a soft, lint-free cloth to wipe the surface if necessary.
3. Position the document: Place the document to be reproduced face down on the copyboard or platen glass. Ensure that the document is aligned correctly, with all edges fitting within the boundaries of the copyboard or platen glass.
4. Close the lid or cover: Once the document is positioned, close the lid or cover of the duplicating camera. This will ensure that the document is held securely in place during the reproduction process.
5. Adjust camera settings (if applicable): Depending on the camera, there might be settings or adjustments you need to make, such as adjusting the brightness, contrast, or zoom level. Consult the camera's instruction manual for specific details on adjusting these settings.
6. Capture the image: With the document properly positioned and the camera settings adjusted (if necessary), follow the camera's designated method for capturing the image. This could involve pressing a button or operating a lever or switch.
7. Remove the reproduced document: After the image has been captured, open the duplicating camera and carefully remove the reproduced document from the copyboard or platen glass.
Remember, it is always advisable to refer to the specific instructions provided by the manufacturer of the duplicating camera for accurate guidance on operating their particular equipment.