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second focal plane
In mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape.
More formally two conic sections are similar if and only if they have the same eccentricity.
One can think of the eccentricity as a measure of how much a conic section deviates from being circular. In particular:
The eccentricity of a circle is zero.
The eccentricity of an ellipse which is not a circle is greater than zero but less than 1.
The eccentricity of a parabola is 1.
The eccentricity of a hyperbola is greater than 1.
The eccentricity of a pair of lines is
∞
{\displaystyle \infty }
View More On Wikipedia.org
More formally two conic sections are similar if and only if they have the same eccentricity.
One can think of the eccentricity as a measure of how much a conic section deviates from being circular. In particular:
The eccentricity of a circle is zero.
The eccentricity of an ellipse which is not a circle is greater than zero but less than 1.
The eccentricity of a parabola is 1.
The eccentricity of a hyperbola is greater than 1.
The eccentricity of a pair of lines is
∞
{\displaystyle \infty }
View More On Wikipedia.org
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Trijicon Tenmile 6-24X50 Second Focal Plane Riflescope, Red LED dot, MRAD reticle, 30mm tube ..SPF-
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- For Sale
- For Trade
- $550
- Veneta
- Oregon
Excellent condition Trijicon Tenmile 6-24X50 SFP optic with red LED dot & MRAD reticle for your consideration. 30mm tube. Includes front and rear flip up caps, lens cleaning pen and everything that came in the factory box. It has been lightly used on a 22LR Volquartsen rifle, was dialed in at...- Classified Ad
- Sight, Scope, & Optic Classifieds
- Luvmegrandkids
- Replies: 2
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Trijicon Tenmile 6-24X50 Second Focal Plane with red LED dot, MRAD reticle & Warne Tactical mount.
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- For Sale
- $749
- Veneta
- Oregon
Here's an excellent condition Trijicon Tenmile 6-24X50 SFP optic with red LED dot & MRAD reticle for your consideration. Warne Tactical X-SKEL mount, zero MOA is included. Includes both front and rear flip up caps & everything that's included in the factory box. Was recently mounted on my...- Classified Ad
- Sight, Scope, & Optic Classifieds
- Luvmegrandkids
- Replies: 0
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Second focal plane ?
I was gifted a Vortex Crossfire 2. 3 - 9 x 40 second focal plane Dead hold BDC scope what do I need to know about second focal plane thanks- Discussion Thread
- Scopes
- Lead Ball
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- Tags
- second focal plane
- Replies: 25
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Vortex Strike Eagle 1-8x24mm 30mm Tube Second Focal Plane Rifle Scope
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- For Sale
- $170
- Portland
- Oregon
New haven't taking it out of the box $180 Meet near SE 33rd Powell Blvd- Classified Ad
- Sight, Scope, & Optic Classifieds
- s75n
- Replies: 3
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NightForce NF Benchrest Rifle Scope, 12-42x56mm,
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- For Sale
- $1200
- Poulsbo
- Washington
NightForce NF Benchrest Rifle Scope, 12-42x56mm, 30 mm Tube, Second Focal Plane,- Classified Ad
- Sight, Scope, & Optic Classifieds
- GoodFellow
- Replies: 0
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WTT Aimpoint PRO for LPVO in Second Focal Plane
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- For Trade
- Vancouver
- Washington
Rattle canned, but has only seen light use. Works as it should. I am only looking to trade for a 1-6x or 1-8x LPVO in SFP only. I am willing to add cash for the right set up. Clearly I don't care if it's rattle canned or salty as long as it functions as it should with no broken or missing parts.- Classified Ad
- Sight, Scope, & Optic Classifieds
- Gunbuggy
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- Tags
- lpvo pro second focal plane
- Replies: 0
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Sig Sauer Waterproof Fogproof Hunting Second Focal Plane 1-inch Tube Diameter Whiskey3 4-12X50mm Scope
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- For Sale
- $140
- Portland
- Oregon
New, Sig Sauer Waterproof Fogproof Hunting Second Focal Plane 1-inch Tube Diameter Whiskey3 4-12X50mm Scope- Classified Ad
- Sight, Scope, & Optic Classifieds
- szs
- Replies: 0
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Price drop! Just in time for Christmas! Athlon Optics Talos 4-16x40 Second Focal Plane Riflescope
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- For Sale
- $100
- Lynnwood
- Washington
Brand new scope! Fully multi-coated lenses gives you better light transmission to bring optimum brightness and true color across the entire light Spectrum Reticle etched on the Glass that provides excellent backing support for complex reticle design and offers great durability and much...- Classified Ad
- Sight, Scope, & Optic Classifieds
- Rigali V
- Replies: 0
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Schmidt & Bender PMII, 5-25-56 MOA, SFP, P4FL retical
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- For Sale
- $2600
- Rainier
- Washington
Use the honor, bench rest gun only. Has Tenebraex scope caps and a aadland throw lever. The only marks on the scope are around the windage turret, and one very small Merc on the elevation turret, form my safe and being in the case $2950. The listing does not include the sphur mount. Will trade...- Classified Ad
- Sight, Scope, & Optic Classifieds
- aidenarms
- Replies: 1
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