Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11AM Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enjoy Extended Returns thru Feb 1, 2017!
You have until Feb 1, 2017 to return or exchange items purchased between Nov 1, 2016 and Jan 1, 2017. All other standard return policy conditions apply.
Enter new zip code to refresh estimated delivery time.
The National 775-420 0.75x Auxiliary Objective Lens reduces magnification by 75%. This allows an increased working distance from 3.1" / 79mm to 3.5" / 90mm, as well as increasing the field diameter by 33%.
Table of Contents
National 775-420 0.75x Auxiliary Objective Lens Review