We get letters ♫ … I got an email recently regarding apertures from a compound archer. Some interesting points were raised. Here it is:
I’m working on a steadier hold. I switched to a dot from my aperture because the new (kinda) 80 cm target for compound @ 50m didn’t work with the aperture I’d been using for the 122cm target. That aperture also worked perfect in my garage at 28 feet as well as 18 m indoors. The dot seemed to be the same size at all distances. I was doing holding drills this week and tried both the dot and empty aperture, then noticed something interesting. When using the dot, it wanders out of the gold and you don’t want to take a shot when it does that but when using the aperture you always have some yellow in the circle made by the aperture even when the dot would be out. It’s an illusion, somewhat, you’re always in the yellow while you’re “out” with the dot even though it’s really the same position you’re holding on.
Here’s my response.
* * *
You were perceiving what is called relative steadiness. A bigger dot seems to move less than a smaller one (possibly because the extent of the motion is a fraction of the diameter of the larger dot, rather than a multiple of the diameter of the smaller one). Same is true for larger rings/apertures v. smaller rings/apertures. If you are using a central dot in your aperture, you want to have the dot be small enough it does completely cover the gold, nor does it leave the gold often. This is why I prefer a larger ring decal on my scope lens apertures. The gold floats inside of the ring and provides the information my brain needs to see that it is “centered” in that ring.
Imagine a dot so big it covers the gold. (Some have used old sight pins with beads glued on the tip to create such a thing for indoors compound archery.) In this situation one feels the urge to move it off to see if the gold is actually behind the dot. If you are in a situation like that, due to the distance to the target, it is better to “see” the dot as being inside, say, the blue ring, and looking to have it centered in that ring because the gold is not helping. On a target like the NFAA Hunter targets, you are SOL as there is only the small central dot on the face and no outer rings to help as with the parti-colored target faces.
Small dots make you feel more jittery, larger ones less so, but larger rings/apertures include the ability to see what is behind the aperture while keeping the sense of stillness.
We are never perfectly still. The fact that out hearts beat continuously, and each beat changes the location of our center of mass slightly, which means we can never be perfectly still. So apertures, scope lenses, dots will always be seen to be moving. Small objects moving a distance equal to their own size appear to be moving a lot. A large object moving the same distance appears to be moving very little. The empty ring aperture (recurve) and the ring decal applied to scope lenses (compound) provide the best of both.
Again, these are my opinions, my analyses. There ain’t no gospel here. If you are someone which an elevated innate sense of calmness, you made need no extra help like this. I am not one of those people and was born jittery, so I needed all of the help I could find. Steve