Difference between revisions of "Focus adjustment 393"
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* Lens N125B04530W with IR-cut filter. If the target lens is different, still use this one for adjustment then replace. Wrap the thread of the lens with the teflon tape for better thread fitting - 2 layers if enough. When screwing in make sure the tape does not get in the optical path. | * Lens N125B04530W with IR-cut filter. If the target lens is different, still use this one for adjustment then replace. Wrap the thread of the lens with the teflon tape for better thread fitting - 2 layers if enough. When screwing in make sure the tape does not get in the optical path. | ||
{| | {| | ||
| − | |[[File:SFE focusing parts.jpeg|thumb|500px|Fig. | + | |valign='top'|[[File:SFE focusing parts.jpeg|thumb|500px|Fig.2a SFE parts]] |
| + | |valign='top'|[[File:SFE focusing sensor spacer.jpeg|thumb|200px|Fig.2b Sensor teflon spacers]] | ||
|} | |} | ||
* Focus adjustment screws - do not overtighten initially. Later, right before starting the procedure when the camera is against the pattern - turn it on, while in jpeg open the control interface and adjust the screws for the best manual focus (do not apply too much force). | * Focus adjustment screws - do not overtighten initially. Later, right before starting the procedure when the camera is against the pattern - turn it on, while in jpeg open the control interface and adjust the screws for the best manual focus (do not apply too much force). | ||
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|[[File:SFE focusing SFE screws.jpeg|thumb|200px|Fig.3 Focus adjustment screws]] | |[[File:SFE focusing SFE screws.jpeg|thumb|200px|Fig.3 Focus adjustment screws]] | ||
|} | |} | ||
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===Assembled setup=== | ===Assembled setup=== | ||
* Take a longer cable - at least 100mm | * Take a longer cable - at least 100mm | ||
Revision as of 10:54, 2 October 2020
Description
internal use
regular SFE
- used on big the Xeon PC - 192.168.0.6
- restore from test_focusing/default.conf-xml
- quick get&show
- find grid
- no-move measure
- show PSF
- adjust screws
- repeat from 4. until good
Setup
Parts
- Assembled SFE without lens and without IR-cut filter (can be with the filter if the target lens is different)
- M12 adapter
- 2 spacers: 5mm and 4.7mm (shaved off 0.3mm (made from 5mm spacer) for optimal adjustment)
- Lens N125B04530W with IR-cut filter. If the target lens is different, still use this one for adjustment then replace. Wrap the thread of the lens with the teflon tape for better thread fitting - 2 layers if enough. When screwing in make sure the tape does not get in the optical path.
- Focus adjustment screws - do not overtighten initially. Later, right before starting the procedure when the camera is against the pattern - turn it on, while in jpeg open the control interface and adjust the screws for the best manual focus (do not apply too much force).
Assembled setup
- Take a longer cable - at least 100mm
- Connect to port 0
- Set the camera address to 192.168.0.38
- Make sure the power supply provides the right voltage - 12V or 48V. If possible install PoE compatible power board - 10386.
Pattern
- Use the wallpaper pattern
- Make sure all 4 lasers are pointing in the right spots - "manual laser pointers" yellow button in the imagej plugin
