how does it focus at 20 inches
1694217
It appears the focal distance is about 10-12 feet; you will be unable to see any clear image nearer than that distance.
1521466
I honestly haven't had a problem with the focus at any size. Right now I have it projected on a full wall, about 120", and its great. You can easily adjust the settings so it will always have the best picture.
1609945
I am Sorry i forget to Include this Information with My Response! Be Sure to Include a f-Stop Increase to being thing into Focus Also! This is Very Important Too! It is Something You Have To Experiment with to get Correct! Not Hard to Do, Just Use Live View on your Camera and Play with it from there! This Aspect is Very Tricky for Focusing and Experience will be Needed to some degree!
73961
I think it's prefocused. Several inches to infinity, but best at about ten feet.
1799494
It is a manual focus that is done by pressing on the outside ridge of the lens itself. Once you get your area of focus, you can adjust the"look" by pressing the lens to one side or the other.
1399152
I have it on a rifle and it will focus at 20 yards but I have never tried it at close distance as I still have iron sights on the rifle, thank you.
1505999
Their is an adjustment for the viewfinder that is a little wheel to the left of it, it will adjust the focus of the viewfinder...hope that helps!
20082
about the right distance....mine is about 20 feet and need to get a little closer.....
955255
It is focus-able to the viewer. I can't see clearly past 2 feet without my glasses. I see through this perfectly when I focus it. It's a tough little scope. I've been very happy with it. -DM
589186
Yes this headband magnifier will be in good focus at 18 to 24 inch range. I am happy with mine. I spread butterflies using mine. I have no focus problems at 24" or much closer. For the price this magnifier is as good or better than much more expensive one.
2120764
Its a macro lens. Try getting as close as posible , you almost have to be touching the object with the lens for it to focus
1239751
This lens has a wider view so you see more. It's a little heaver and bulkier than the 85mm, but you can stand much closer to an object that you want to have in focus (12 inches) as opposed to the 85mm (about 3-4 feet).
1655208
It turns a little more than two full turns. The focus is very smooth, from infinity to about 5 feet.
991304
HI, A 20 magnification will give you a wide field of view. a 10 mag will show object closer and a 2 x barlow will give you a 5 degree field of view (zoom effect) hope this helps
306697
You'll need to be within about 6 inches to use this magnifier. You might consider a pair of folding Opera Glasses. They can be found inexpensively (on amazon), unfortunately you'll probably need to be 3 feet away to get them to focus... it may say in the product description. I have a monocular that lets you focus in very short distance... little more expensive, but very handy.
1489808
There is no focus. It is just a magnifier of your view screen. I love mine. Great for a sunny shoot-bloks out excess light so I can see my screen.
1632324
Not sure why it says 4 inches. I can get it to focus at less than one inch. It's a great 30mm lens for macro photography.