Difference between revisions of "Focus adjustment 393"

Revision as of 10:58, 2 October 2020

internal use

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.

Fig.2a SFE parts

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).

Fig.3 Focus adjustment screws

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.

Fig.4 Assembled focusing setup

Fig.5 Tripod placement

Fig.6 Tripod closeup

Make sure all 4 lasers are pointing in the right spots - "manual laser pointers" yellow button in the imagej plugin

Fig.7 Laser spot markings

Now proceed with regular_SFE instructions

@@ Line 15: / Line 15: @@
 # repeat from 4. until good
-==Setup before using ImageJ==
+==Setup before using ImageJ Aberration Calibration plugin==
 ===Parts===
 * Assembled SFE without lens and without IR-cut filter (can be with the filter if the target lens is different)