Explore Scientific 52 Degree Series 20mm Waterproof Eyepiece | EPWP5220-01
EPWP5220-01
Explore Scientific 52 Degree Series 20mm Waterproof Eyepiece | EPWP5220-01
EPWP5220-01
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Product Description
Often considered the perfect mid-range focal length for most amateur telescopes, the 20mm on the ED127 at f/7.5 produces a 1 degree true field of view. Perfect for the Messier Marathon, or running down the Herschel Catalog. The 20mm 52° Series is also a good selection for most binoviewers with its relatively small size and magnification range.
Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossol.
Another great benefit of these eyepieces is the excellent contrast and ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images
Specifications
| Item Number | EPWP5220–01 |
| Focal Length | 20mm |
| Length | 71.0mm |
| Width | 43mm |
| Weight | 6.4oz (181.4g) |
| Barrel Size | 1.25" |
| Eye Relief | 15.0mm |
| Field Stop Diameter | 18.2mm |
