May 14
As described in Eye Alignment and Eye Focus, vision is a complicated process.
There are a number of muscles involved in creating a clear focussed image that the brain processes.
The muscles can be groups into essentially two sets:
- Muscles that control Eye Focus (Lens Focus)
- Muscles that control Eye Alignment
Increasing the speed with which your muscles can acquire and focus on objects is often measured on the clock in sports like IPSC. As covered in the fundamentals, you can only shoot accurately as fast as you can see. Continue reading »
May 09
Calling the shot is critical skills in accurate shooting at speed and refers to the skill of knowing exactly where the bullet is going to hit at the instant the shot breaks, before it gets to the target.
It is important to note that the call is simply visual awareness. Calling the shot tells you where the bullet went at the moment the shot broke and has nothing to do with where you wanted the shot to go.
This point is key. Continue reading »
Apr 23
Please refer to my posts on Stereo Vision and Eye Alignment vs. Eye Focus for details on the issues.
This post covers a technique I’ve used to teach myself to shoot with both eyes open. Continue reading »
Apr 21
Vision is a complicated process. The human brain is constantly taking the images from each eye and combining them to render a single image that we see.
The disparity in the images comes from the fact that the eyes are almost never aligned parallel to each other. If you draw a straight line from each eye, based on the direction it’s looking, the lines will intersect at some point. This point typically aligns with the object that you’re looking at. The position of the eyes is commonly referred to as eye alignment. I’ve also heard some people refer to this as brain focus.
The second thing that happens when you “look” at an object is that the muscles in the eye adjust the lens to focus and produce a clear image. This is commonly referred to as eye focus or lens focus. This is analogous to how a camera lens focuses.
Continue reading »
Apr 06
Stereopsis (derived from the greek word stereos meaning solidity, and opsis meaning vision) is the process in visual perception leading to perception of stereoscopic depth.
This is essentially the process where the brain takes the distinct images from each eye and combines them into an image that is more than the sum of the parts since it is a 3D image which allows the perception of depth.
There is much debate on shooting with one eye vs. shooting with both eyes open. Continue reading »