The Pentax 8x20 MCF II Jupiter binocular is an entry-level offering rendered in a stylish color scheme. Bak-4 Prisms are used, as opposed to the more commonly found Bk-7 prisms in most entry-level binoculars. These are great as a unit not to worry about, or for giving a young child as a gift.
| Prism Type | Porro |
| Magnification | 8x |
| Objective Lens Diameter | 20 mm |
| Angle of View | 6.2° |
| Field-of-View | 324' @ 1000 yd / 107.57 m @ 1000 m |
| Minimum Focus Distance | 9.84' / 3 m |
| Exit Pupil Diameter | 2.5 mm |
| Eye Relief | 10 mm |
| Interpupillary Adjustment | Not Specified By Manufacturer |
| Dioptric Correction | Not Specified By Manufacturer |
| Focus Type | Center |
| Tripod Mount | None |
| Dimensions | 4.21 x 1.69 x 2.99" / 10.69 x 4.29 x 7.59 cm |
| Weight | 6.24 oz / 177 g |