Re filter
Amazing price Lewis.and its not to be sneezed at from all accounts.
The SVBONY eps with an aspheric non glass eyelens in the 23mm is actually very useful at a ridiculously low price also..Ive not used one but others on CNs have, and love them esp the 10mm of the 3...one can buy on Ebay.
Maybe thats the way of the future with some lenses ...even Zeiss has used special plastic aspheric lenses at times...and it works.
No need to scoff at the price if it works I say.
bigjoe.
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