Focal Plane Doesn't Matter for LPVOs

Published on June 9, 2020
Duration: 5:47

This video explains the functional differences between First Focal Plane (FFP) and Second Focal Plane (SFP) Low Power Variable Optics (LPVOs), particularly in budget-friendly options. The speaker argues that for typical LPVO use cases, especially at lower magnifications (1x to 4x or 6x), the focal plane often doesn't significantly impact performance or usability for ballistic calculations and target acquisition. The discussion touches on reticle size consistency and the practical implications for shooters.

Quick Summary

For budget Low Power Variable Optics (LPVOs), the focal plane (First Focal Plane vs. Second Focal Plane) often has minimal practical impact on usability. While FFP offers consistent ballistic holdovers across all magnifications, SFP can be adequate for typical LPVO use cases at lower power settings where extreme long-range precision isn't the primary requirement.

Chapters

  1. 00:13Introduction to LPVOs
  2. 00:51Focal Plane Explained: FFP vs SFP
  3. 01:16Ballistic Calculations and Reticle Consistency
  4. 01:37Practical Use Cases for LPVOs
  5. 02:06Target Acquisition and Magnification
  6. 03:04Budget LPVO Testing and Observations
  7. 03:21Bushnell AR Optics Example
  8. 03:52Reticle Size Issues at Low Magnification
  9. 04:24FFP vs SFP Practical Advantages
  10. 04:46When Focal Plane Matters Most
  11. 04:56Conclusion: Budget LPVO Focal Plane Debate

Frequently Asked Questions

What is the main argument regarding focal planes in budget LPVOs?

The primary argument is that for budget-friendly Low Power Variable Optics (LPVOs), the distinction between First Focal Plane (FFP) and Second Focal Plane (SFP) often has minimal practical impact on usability, especially for typical shooting scenarios at lower magnifications like 1x to 4x.

How does a Second Focal Plane (SFP) reticle work in an LPVO?

In an SFP scope, the reticle is located behind the magnification lens. This means the reticle's apparent size remains constant relative to the eyepiece, but its subtensions for ballistic holdovers are only accurate at one specific magnification, usually the highest setting.

What is the advantage of a First Focal Plane (FFP) reticle in an LPVO?

An FFP reticle is positioned in front of the magnification lens. As you change magnification, the reticle scales proportionally with the image. This ensures that ballistic holdovers and subtensions remain accurate and usable across the entire magnification range of the scope.

When might the focal plane of an LPVO not matter for a shooter?

The focal plane may not significantly matter for shooters who primarily use their LPVO at low magnifications (e.g., 1x to 4x or 6x) for general shooting, hunting, or close-to-medium range engagements where precise ballistic holdovers at extreme distances are not the main concern.

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