Optical device utilizing ballistic zoom and methods for sighting a target

1. A method of sighting a target, the method comprising:

receiving an initial condition of an optical device, wherein the initial condition comprises a size of a ranging element and a range associated with the size of the ranging element;

receiving a ballistic information;

receiving an image from an imaging sensor;

displaying at least a portion of the image on a display;

overlaying the ranging element on the displayed portion of the image;

receiving a first zoom input to set a first zoom value, wherein the first zoom value corresponds to a first distance from the optical device; and

determining a first projectile position based on the first distance and the ballistic information.

2. The method of claim 1 , further comprising displaying a first region of interest based at least in part on the first projectile position and the first zoom value.

3. The method of claim 2 , further comprising displaying a first symbol corresponding to the first projectile position.

4. The method of claim 1 , further comprising:

receiving a maximum zoom input to set a maximum zoom value, wherein the maximum zoom value is defined by an image sensor region of interest and a display region of interest;

displaying a maximally magnified image associated with the maximum zoom value;

receiving a second zoom input to set a second zoom value, wherein the second zoom value corresponds to a second distance from the optical device;

calculating a size of an adjusted ranging element;

superimposing the adjusted ranging element on the displayed maximally magnified image;

determining a second projectile position based on the second distance and the ballistic information; and

displaying a second region of interest based at least in part on the second projectile position and the second zoom value.

5. The method of claim 4 , further comprising displaying a second symbol corresponding to the second projectile position.

6. The method of claim 3 , wherein the first symbol comprises at least one of a point of impact at the target and a guide symbol.

7. The method of claim 1 , wherein the first projectile position determination operation is based at least in part on a crosswind input.

8. The method of claim 1 , wherein the first projectile position determination operation is based at least in part on a projectile information input, an ambient temperature input, an inclination input, a tilt input, a muzzle exit velocity input, and a barometric pressure input.

9. The method of claim 1 , wherein the imaging sensor comprises a camera.

10. A method of sighting a target, the method comprising:

receiving a ballistic information;

receiving an image from an imaging sensor;

receiving a zoom value;

calculating a projectile trajectory based at least in part on the ballistic information; and

displaying a region of interest based on the zoom value, wherein the region of interest corresponds at least in part to the projectile trajectory.

11. The method of claim 10 , further comprising determining a range to the target.

12. The method of claim 11 , wherein the determination operation comprises:

displaying at least a portion of the image on a display; and

superimposing a ranging element on the portion of the image.

13. The method of claim 10 , further comprising:

receiving a zoom input, wherein the zoom input comprises an updated zoom value; and

displaying an updated region of interest based on the updated zoom value.

14. A method of sighting a target, the method comprising:

receiving an image from an image sensor;

displaying at least a portion of the received image, wherein the displayed portion comprises a displayed field of view;

displaying a ranging element with a fixed size in relation to the displayed field of view;

receiving a target size input;

receiving a zoom input to set a zoom value;

calculating a range to a target based at least in part on the target size input and the zoom value.

15. The method of claim 14 , wherein the target size input comprises a default target size input.

16. The method of claim 14 , wherein the receiving the target size input comprises receiving the target size input from a storage device.

17. The method of claim 14 , wherein the target size input is selected from a plurality of predetermined target sizes.