There must have been a mix-up in the transmission of the data. We have checked this and found the following: Filter category: S3 (8-18 %): predominantly sunshine VLT (%): 13

Hi - no, the lenses are not self-tinting. Up to a certain degree of overcast, these lenses are fine, but they tend to be glasses for sunny weather.

That's right. This refers to a particular sub-model of the Line Miner range.