UPSTATE MILES / REFERENCE
Standard, polarized and photochromic lenses
Understand lens types and visible light transmission, and choose lenses for the conditions you move in.
01 / REFERENCE
Which lens types does ZAG offer?
ST1 uses standard lenses, PL1 and PL4 use polarized lenses, and PH1, PH3 and PH4 use photochromic lenses. Brand-supplied specifications list TR90 frames, PC (polycarbonate) lenses and a weight of 29.8 g for every model.
02 / REFERENCE
What is the visible light transmission of each model?
The figures below are brand-supplied specifications. ST1 and PH values were supplied based on existing test reports. PL1 and PL4 values reflect visible light transmission (Tv) in the supplied reports.
| Model | Lens | Visible light transmission | Filter category | Availability |
|---|---|---|---|---|
| ST1 | Standard | 13.97% | S3 | Available now |
| PL1 | Polarized | 14.67% | S3 | Available now |
| PL4 | Polarized | 13.54% | S3 | Available now |
| PH1 | Photochromic | 13.53% ~ 81.22% | S0 → S3 | Available now |
| PH3 | Photochromic | 9.48% ~ 69.36% | S1 → S3 | Available now |
| PH4 | Photochromic | 9.70% ~ 75.39% | S1 → S3 | Available now |
03 / REFERENCE
How do photochromic filter categories change?
Before and after darkening, the filter categories are S0 → S3 for PH1 and S1 → S3 for PH3 and PH4. Compare these with each model’s transmission range and choose for the time of day and ambient light.
04 / REFERENCE
Which models can I buy?
All six ZAG models are on sale: standard ST1, polarized PL1 and PL4, and photochromic PH1, PH3 and PH4. Select your model option on the official Store product listing. See the model pages for current prices.