Well let's back up to basics for everyone.

I have grandkids who use my binoculars at times. So each morning I adjust the focus on some far object and have made this a habit. Usually once you have set your diopter you can leave it alone. But I taught my kiddies how to get the best focus.

To Focus
I Look at an object through the left eyepiece with my left eye. I rotate the focusing ring until you I see a sharp image of itin the left eye. I then look at the same object through the right eyepiece with my right eye 0 keft eye closed. I then rotate the Diopter adjustment ring (usually located under the right eyepiece) until I see a sharp image. Now open both eyes - I am should be in focus. Practice this and it takes mere seconds.

Then as flags said I use them in heavy brush looking for that out of place Horizontal line. The back of the deer. Or that Vertical Line the leg of the deer. eI look at anything my naked eye suspects might be a deer. And as flags said you will be amazed how much farther into the brush you can see. Make it a practice to use the binos alot. You will see more deer.

And as Mudder wrote movement is the key. That shadow that just moved. That ear twitch as deer are always adjusting ears towards sound or that tail flick. It is their movement that gives them away as I sit.

It is also your movement to..that will give you away....never sit where you are back silloetted.
Always have something behind you to break up your body outline and sit still as possible. To sit realy still you must be comfortable. Bring a cushion or chair if that is what it takes. The more comfortable you are the longer you can sit still. And dress for the climate.

..So grandpa taught - sit very still - he told me to become a stump or rock and don't move - move your eyes first as far as you can before you move your head. You think you see a deer.....look away quickly and look back. Watch for those
Look for Horizontal lines out of place or for that tree the just grew legs Vertical.
And be sure of your target and beyond.

Anohter very nice addition to your binocs Father Forkhorn- a S4 Bino Carrier(Google it). You will never regret the purchase. The binos are locked down to your chest but are there quickly when you need them. They are covered in bad weather but are there when you need them. And the S4 is so comfortable to wear. Best Xmas gift ever from my brother.

JW