The adjustment of the intercept after focussing camera lens is the method what kind of? The function of automatic electron shutter of use camera, camera lens aperture tone arrives the biggest, focusing annulus is apart from actually by scenery adjust, the intercept after adjusting next till till picture is the clearest. The adjustment of the intercept after scorch camera lens is the method what kind of?
1.Open camera function of automatic electron shutter
2. moves camera lens aperture with controller the biggest
3. aims camera 30 meters of objects beyond, focusing is moved to boundless far (major camera lens is to face camera lens general in front
Suitable hour hand of focusing adjustment annulus rotates in the end)
4. uses controller to adjust camera lens scorch to push scenery to farthermost, the intercept after adjusting camera lens makes scenery the clearest
5. uses controller to adjust camera lens scorch to pull scenery to recently, focusing of fine tuning camera lens makes scenery the clearest
6.Repeat 4-5 situation several times, till scenery is clear from beginning to end in process of camera lens scorch
Infra-red lamp has different power to reach 715, 830nM two kinds of wavelengh, does the choice of wavelengh depend on what element?
2.1. If the user does not mind infra-red light to be seen by naked eye place, the infra-red lamp of 715nM because its illume distance is far, the effect is good
Should be first selection.
If 2. considers red cruel issue, must use the infra-red light of 830nM, should use the camera of low intensity of illumination.
3. chooses the shot with opposite bigger aperture
The horn of disperse the internal heat with sudorifics of 4. infra-red lamp should match with the photograph of angle of visual field of camera lens
3.Limits of the biggest illume depends on of weather condition, object glance rate and the illumination level all round, the projectile limits with infra-red farthermost spotlight is as follows:
Rice of 500W=150-200 rice 300W=80-120
50W=15-30 rice 30W=5-15 rice
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