Calculation Form for Diving Masks
For the glazing of our dive masks, the higher BVD (Best Vision Distance) must be taken into account.
Our dive masks are calculated based on a BVD of 25mm. Most frame lenses are based on a BVD of 16mm.
For calculating the lenses and, consequently, the prices, we use this calculation model.
Important Notice!
The conversion is based on rounding to quarter diopters. This rounding prefers downward rounding, as this usually results in more comfortable outcomes. If your calculations are based on different principles, please let us know. Otherwise, we will proceed with our calculations. These calculations do not replace your responsibility as an optician to verify them with your own calculations. We do not provide any warranty for the calculated values.