Orders placed after 4pm on weekdays will not ship until the next business day. Orders placed after 12pm Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
The Konus #5473 Objective Protection Lens is used upon the Crystal microscope. It is affixed atop the normal objective lens for the Crystal, and provides a small layer of protection against impact damage upon the expensive lens. It is just a transparent 'sacrificial' lens.
Novice microscope users will often focus a microscope so close to the specimen that they collide the specimen and objective lens.