first focal plane vs second focal plane

This is a discussion on first focal plane vs second focal plane within the Optics forums, part of the Sniping Related category; I am hunting for a new scope since the one that came with my thunderstick is of zero quality. While I am searching for the ...

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  1. #1
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    first focal plane vs second focal plane

    I am hunting for a new scope since the one that came with my thunderstick is of zero quality. While I am searching for the best that my finances can pay for I have run across some terms that I don't understand. What is the difference between a first focal plane scope and a second focal plane scope.
    More importantly, why is one better than the other? I have tried the search function and have not found an answer to my question.
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  2. #2
    Senior Member frzburn's Avatar
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    Search function gave me this as the second result (the first one being your post)

    http://www.snipercentral.com/forums/...st+focal+plane

    Read the posts, and you'll find your answer around mid-page.
    "Fight for something you believe in and find it for yourself. If you do, pass it on to the future." --Solid Snake

  3. #3
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    With a first focal plane scope (FFP), the reticle shrinks/grows with the adjustment of magnification (Mils always read true). With a second focal plane scope (SFP), the reticle stays the same size while what you are looking at shrinks/grows with magnification. (Mils are only true under one magnification setting)

    Im still a newbie, but it seems like most people prefer a FFP scope because the mil readings are always true. I personally just picked up a bushnell elite 4200 that is SFP. I like the SFP with this scope because it is based on the magnification setting of 12, allowing you to drop the scopes power to 6 or up the power to 24 allowing you to get a more accurate mil reading then just dividing/multiplying by two.

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