| Brand and Model: | Rini Optics 28.5mm |
| Price ($USD): | $43 |
| Type: | Ultra Wide Angle |
| Focal Length: | 11.2 mm |
| Barrel Size: | 2 |
| Apparent FOV: | 90.0 degrees |
| Field Stop Dia.: | 19.0 mm |
| Eye Relief: | 20 mm |
| Elements: | 8 |
| Weight (lbs): | 1.1 |
| Description: | This is a 6 element eyepiece with a 2 element barlow threaded into the bottom. Without the barlow it has a 28.5mm focal length. Thread in the barlow and it becomes an 11.2 mm eyepiece. It has very good eye relief and gives good images on both planetary and deep sky objects. |
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