A telescope eyepiece with a variable focal length is called a zoom eyepiece. Zoom eyepieces are well suited for outreach use, terrestrial observing and solar observing thanks to the convenience of a range of magnifications without requiring a physical change of eyepiece. In instances where you need to quickly reduce and increase magnification repeatedly, telescope zoom eyepieces will save you from having to switch out eyepieces in rapid succession.
Subtotal:
All coupons, tax, shipping, store credit and gift cards will be applied during checkout.