Is It Possible To Make A Good 1-10x LPVO

Published on November 11, 2022
Duration: 20:50

This video critically analyzes the inherent compromises in 1-10x Low Power Variable Optics (LPVOs). The presenter explains that achieving high magnification often degrades 1x performance due to optical physics, zoom ratios, and objective lens size limitations. Key issues discussed include small exit pupils impacting light gathering and sight picture stability, and the challenges of First Focal Plane reticles at 1x magnification without adequate illumination.

Quick Summary

10x LPVOs often compromise optical performance due to the inherent physics of achieving both a clear 1x view and high 10x magnification. This leads to issues like small exit pupils, degrading image quality in low light, and First Focal Plane reticles that can be difficult to see at 1x without illumination, making them a specialized optic for few users.

Chapters

  1. 00:00Introduction: 10x LPVOs Suck?
  2. 00:21Gear Quality vs. User Skill
  3. 01:46Maximizing Performance & Minimizing Friction
  4. 02:23Why 10x LPVOs Fall Short
  5. 03:05The Fundamental Problem with 10x LPVOs
  6. 03:50LPVO Requirements: 1x and Max Magnification
  7. 04:34The Compromise at 10x Magnification
  8. 05:10Understanding Optical Ratios and Formulas
  9. 05:23Zoom Ratio Explained
  10. 06:29LPVO Zoom Ratios vs. High-End Scopes
  11. 06:54Objective Lens Size Limitations
  12. 07:13Minimizing Light Bending and Aberrations
  13. 08:36Comparing 1x Performance Classes
  14. 10:27Max Magnification Performance Issues
  15. 10:46The Critical Factor: Exit Pupil
  16. 12:13Exit Pupil vs. Human Pupil
  17. 13:05Increasing Objective Size on 10x LPVOs
  18. 14:03Impact of Small Exit Pupils
  19. 14:54Other Factors: First Focal Plane
  20. 15:39FFP Challenges at 1x
  21. 16:26Illumination Limitations
  22. 17:24The Polarizing Nature of LPVOs
  23. 18:18The 'Just Don't Use Extremes' Argument
  24. 19:18Conclusion: Reconsidering Your Stance

Frequently Asked Questions

What is the main reason 10x LPVOs are often considered compromised?

The primary compromise in 10x LPVOs stems from the optical physics required to achieve both a clear 1x view and high 10x magnification within the same optical tube. Enhancing one aspect often degrades the other, leading to a scope that may not excel at either extreme.

How does exit pupil affect LPVO performance?

Exit pupil, calculated as objective lens diameter divided by magnification, is critical for light gathering. A small exit pupil in 10x LPVOs, especially in low light, means less light reaches the eye, resulting in a dimmer, lower-quality image and potential difficulty acquiring the sight picture.

What are the challenges of First Focal Plane (FFP) reticles on 10x LPVOs?

On 10x LPVOs, FFP reticles can be very difficult to see at 1x magnification without illumination. This makes rapid target acquisition challenging during dynamic shooting scenarios, as the reticle may be lost against the target, requiring users to rely on the etched reticle which is often suboptimal.

Why are smaller objective lenses common on LPVOs?

LPVOs typically feature smaller objective lenses (24mm or less) to maintain a compact and lightweight design, which is desirable for maneuverability. However, this size limitation inherently restricts light-gathering capability, negatively impacting image brightness and clarity, particularly at higher magnifications.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from Brass Facts

View all →