Blue Light Filter Lens Coating
Related Faq
Q
How long do you charge the camera before installing it? How do you know when it's fully charged?
A
please charge the solar camera about 6 hours before installing it. The solar camera indicator light turns blue to indicate that it's fully charged. 
Q
How does this ND2-ND400 filter work
A
K&F Concept ND2-ND400 lens filter controls the amount of the light that enters into camera lens with two sets of polarizing glass of high transparency. 
Q
How does this ND2-ND400 filter work
A
K&F Concept ND2-ND400 lens filter controls the amount of the light that enters into camera lens with two sets of polarizing glassof high transparency. 
Q
What is the effect of blue coating?
A
double-side multilayer blue coating to help repel water ,dirty 
Q
What is the difference between the old and new version of this ND filter?
A
hello,the new version of this ND filter is double-side multilayer blue coating 
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