Wide Lens says to apply Weakness and Resistance for attacks that do damage to the opponent's Benched Pokemon. This will not affect attacks that say "this attack isn't affected by Weakness, Resistance, or any other effects" or "ignore all effects including Weakness and Resistance"; Weakness and Resistance is still ignored for those attacks.
Source: Roaring Skies FAQ (2015-05-07), TPCi Rules Team (2015-05-07)

Relevant cards

Note: All applicable cards may not be listed below.
XY6_95