Resources
Binoculars
1. Where are the binoculars made? Where is the serial number for my model bino?
Country of origin and serial number location is generally located near the hinge on the reverse side of the product. There are a few models w/ serial #’s located on the tripod mount cap.
All of our binocular and spotting scope models are designed to be both, waterproof and fogproof.
3. Are your binocular prisms phase coated?
All roof prism Leupold binoculars are phase coated. Our Redfield roof prism binoculars are not phase coated. Traditional design porro prism binoculars do not require phase coating.
4. Do your binoculars have BAK4 prisms?
All of our Leupold and Redfield binoculars utilize BAK4 prisms.
5. Do your binoculars have a lifetime warranty?
Imported binoculars and spotting scopes are covered by our Leupold Limited Lifetime warranty. “Limited” means they are warranted to the original purchaser.
6. What does Synergy Built mean?
The Synergy Built project represents a combined redesign effort from a dedicated team of professionals at our Leupold headquarters in Beaverton, Oregon. This collection of professionals has worked extensively on a total re-creation of our Observation products involving: Optical Engineering, Design Engineering, Mechanical Engineering, Manufacturing Engineering, and Quality Assurance Testing. The results are a line of binoculars and spotting scopes that is unlike any other in the industry.
7. Do you have any covers that fit better?
As we redesign our products under the SYNERGY BUILT project, we have added tethered objective covers and quick detachable neoprene neck straps, along w/ many other upgraded features.
8. How do you rate your binoculars? (Which models are better than the others?)
Similar to our riflescope product line of VX-1, VX-2, VX-3, etc; we have redesigned the features and performance of our binocular and spotting scope product lines align w/ riflescopes regarding the different levels of glass quality, internal lens coatings, external lens coatings, etc. Our entry level products are labeled as BX-1 for binoculars and SX-1 for spotting scopes; mid level products are labeled as BX-2 and SX-2, High level products are labeled as BX-3; our premium level “made in USA” products will include our familiar “golden ring”.
9. Just what does the twilight factor number in the catalog mean?
The twilight factor is calculated by taking the square root of the magnification and the objective aperture size. The higher the twilight factor, the better the resolution of the binocular when observing under dim light conditions. One thing to remember, since this is a mathematical calculation, it does not take into consideration the light transmittance or quality of the optical system.
10. Which is the best Leupold binoculars for children?
The Yosemite is the best choice because of its lower magnification; wide field of view; compact, but easy-to-use size; and wide interpupilary distance adjustment range.
11. Can any of the Leupold spotting scopes be used for digiscoping?
Yes, the Golden Ring 12-40x60mm spotting scope can be used with the digital camera adapter for digiscoping.
12. What are the advantages of roof prism and Porro prism binoculars?
Roof prism binoculars are lighter and have a closer focus distance. Roof prism binoculars also have a more stream-lined design. Porro prism binoculars often cost less than roof prism binoculars and can provide better depth perception.
13. Which Leupold binoculars have low interpupillary distance capability?
The Yosemite IPD range spans from 50-70 millimeters, which is suitable for anyone. In addition, the Golden Ring binoculars (8x32mm, 10x32mm, 8x42mm, 10x42mm) have a range of 56-72 mm, and the Katmai from 57-72 mm.
