The Explore Scientific 4.7mm 82° Series Argon-Purged Waterproof Eyepiece is used when very high magnifications are desired. Watch the video on this page below starting at 5:28 where we describe the benefits and conditions that are required to use your telescope at high magnifying power for planetary and double star observations, and for examining the details of many deep sky objects.
The 4.7mm will not be used every night, but when those times occur when conditions in the sky are near-perfect, you can get views of planetary detail that you will remember for a lifetime with this eyepiece.
Explore Scientific 82° Series Waterproof Eyepieces - Comfort, Quality, Value.
Explore Scientific 82° Series eyepieces, with their 82 degree apparent field of view, immerses you in a very comfortable ultra-wide field that naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that may not have become apparent to you at first glance. Another great benefit of ultra-wide eyepieces is the 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.
Waterproof Eyepieces Are Easy to Clean and Protect the Internal Lens Elements
All Explore Scientific Waterproof Eyepieces are gas-purged and O-ring sealed which makes them very easy to clean. You can even place them under running water and use generous amounts of lens cleaning solutions to remove stubborn layers (and sometimes sticky) of materials that nature and humans often subject eyepieces to. You can also leave the eyepieces out overnight without fear of them fogging up between the lens elements.
Item Number EPWP8247–01
Focal Length 4.7mm
Weight 7.5oz; 213g
Barrel Size 1.25"
Eye Relief 13.6mm
Field Stop Diameter 6.9mm
Limited Warranty is one year, which converts to the Explore STAR Transferable, No-Fault, Forever Warranty when product is registered within 60 days of purchase. Click Here to register. If you have acquired an Explore Scientific item and it was not registered within 60 days, you can join the Explore Alliance. EA members receive many benefits and one of them is covering your gear with Explore Care. See details.
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Miscellaneous Shipping Information
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Processing time is the time it takes from when you submit your order to when the product leaves the warehouse. The "Ships Within" time frame listed with each of our products on the website applies to this time frame. For example, if your order a product that reads "Ships Within: 2 Weeks", this means that the product typically leaves the factory within two weeks. If there will be any additional time required to process your order, we will notify you immediately to confirm the delivery period. This time is needed for products that are shipped to you directly from our manufacturers. The manufacturers need this time to fulfill your order. In some cases, the items are custom built. Shipping time is measured when your order leaves the warehouse to when it arrives at your address. Actual shipping time can vary between 2-5 business days. Contact our helpful customer service experts at (888-264-2244) for more information.
Did your shipment arrive damaged or defective?
Please report damaged or defective merchandise to us immediately by email phone. Photos of the items and the packaging would be greatly appreciated. This will speed up our resolution process. We strongly recommend at the time of delivery, if your notice any cartons that look dented, crushed or just not right, open them immediately and inspect the contents. If the contents appear to be damaged, please notate it on the delivery ticket, refuse that item only and contact us as soon as possible for instructions.
I got a pair of these for my APM 70mm Binoculars. They work very well. Despite the high magnification (pushing the limits of the binoculars) am able to fuse the images and I am happy with what I see.