I have a few Tian Ya brought from the mass seller here and observed the following :
Product label
1st filter with TIAN YA wording on the filter.
2nd and 3rd brought without TIAN YA wording on the filter.
4th filter with TIAN YA wording on the filter.
Same product different density
The 3rd and 4th are the same type of filter but have different density.
The 3rd without the TIAN YA wording allow more light to pass through and with slight defect.
The 4th with TIAN YA wordin being darker, allow less light to pass through.
I am wondering if there are fake copies of TIAN YA around?
Product label
1st filter with TIAN YA wording on the filter.
2nd and 3rd brought without TIAN YA wording on the filter.
4th filter with TIAN YA wording on the filter.
Same product different density
The 3rd and 4th are the same type of filter but have different density.
The 3rd without the TIAN YA wording allow more light to pass through and with slight defect.
The 4th with TIAN YA wordin being darker, allow less light to pass through.
I am wondering if there are fake copies of TIAN YA around?