Description
To install the pinhole inserts, the entire pinhole glasses frame must be slightly heated – not above 65°C!
The pinhole inserts are identical on the left and right and can be pushed out of the frame towards the front and also back in from the front.
NOTICE: If your pinhole glasses are not from the current series (before 2019), it is possible that the pinhole inserts are a little too large and need to be ground down by approx. 0.5 to 1 mm all around.