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40m Log |
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Thu Mar 9 15:25:12 2017, Koji, Update, General, IMC/XYarms aligned/locked
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Thu Mar 9 17:26:43 2017, Steve, Update, General, attempted ETMY picture taking
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Thu Mar 9 20:11:04 2017, Koji, Update, General, attempted ETMY picture taking
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Fri Mar 10 18:00:22 2017, Steve, Update, General, attempted ETMY picture taking 
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Message ID: 12877
Entry time: Thu Mar 9 20:11:04 2017
In reply to: 12876
Reply to this: 12881
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Author: |
Koji |
Type: |
Update |
Category: |
General |
Subject: |
attempted ETMY picture taking |
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The attached is the ETMY image with the single arm locked. This was the best I could do. Here is the recipe
- Turn on SP570UZ
- Switch to "M" mode (Manual aperture and exposure)
- Set the aperture to be the widest (smallest F number) and the exposure to be maximum (15 second).
- Switch to AF mode by the lens side switch
- Use the lens dial to adjust the zoom until the OSEMs fill the central 1/3 box (i.e. 1/9 area of the field of view). If you zoom more, you can't focus the spot later.
- Use menu button to switch to ISO1600 (You are now capable to see the beam spot)
- Switch to MF mode by the lens side switch
- Use the lens dial to adjust the focus to have the sharpest image of the spot. This can be achieved at the focal distance of ~1m
- Use menu button to switch back to ISO64
- Push the shutter (I didn't use it, but you should be able to use 2sec timer)
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