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I bought these for my husband. In trying them

I bought these for my husband. In trying them out, I think it is hard to focus them. Can you focus close up?

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  • Billie Thoeming Jul 31, 2009

    They are 10x25. They look like roof prisms. There is little info on the net except very unhappy people. I called Vivitar and he told me that these were made before they took over the company and I sould probably return them. I bought 4 sets for gifts. There is some kind of knob in the middle to focus, but you cannot get a clear focus no matter where you look and when I download them, I seem to get an image that I wasn't looking at at all. Thanks

  • Billie Thoeming Aug 01, 2009

    It does not matter how close or how faraway I shoot. I can shoot down the street and still don't get anything that can be recognized. Thanks

  • Obertelli
    Obertelli May 11, 2010

    Binoculars are for distant objects, how close up are you asking about?

  • Zeiss Man May 11, 2010

    How close do you wish to focus them? Binoculars have a limit as to how close something can be focused based on a number of things such as magnification and design. What magnification are they? Are they roof prism or porro prism? Porro prisms have the traditional old look where the front Lenses are further apart than the rear ones. Roof prisms have the rear and front lenses inline. Checking online for the model specifications that you have should also let you know what the close focus range is.



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Difficult to answer specifically without knowing the model. But binoculars are designed to view objects in the distance. They all have a limit as to how close they will focus based on the magnification and design. Objective lenses that are far apart such as on a porro prism binocular will not focus very close. The nature of the design of having the objectives further apart than the eyepieces doesn't allow it. When trying to focus too close the image will appear blurred and double. That is the nature of the design. 9 feet or 3 metres is considered quite close to focus a binocular and is usually for a model designed to do this such as a roof prism where the objective lens and the eye lenses are inline. A specialty binocular such as the Pentax Papilo will close focus to 50 centimeters. It has been designed so that the objective (large lenses) lenses converge.

Take into account when focusing that binoculars are also designed to compensate for differences in each eye. One of the eyepieces either right or left will adjust seperately. For binoculars with a center focus ring. First focus using the center ring with one eye covered. The eye that should be covered is the one that doesn't have the adjusting eyepiece. When the image is clear close the eye you have just used and leave the center focus alone. Focusing on the same spot look through the eyepiece that adjusts and turn the eyepiece ring until the image is clear. Now all you have to do is focus using the center ring only as the binoculars are adjusted for each eye.

Some binoculars do not have a center focus and each eye will adjust seperately.

Posted on Aug 01, 2009

  • Zeiss Man Aug 01, 2009

    I'll add to my solution. Now I have the model. Delay in post and response times. Vivitar or any other camera binoculars don't do either well. The image will always not be what you are looking at as the camera and binoculars are two seperate items stuck together. What you see through the camera will be in the approximate area where you are viewing. The camera lens does not go through the binocular tubes. It's like holding a camera on top of a pair of binoculars. The camera lens has its own magnification and is not the same power as the binoculars. As a collector I have a pair of these camera binoculars to have in my collection. They are made by Tasco and are identical to the Bushnell made ones of the time. The binocular is sub par and the camera is awful. All the camera binoculars are made in China very cheaply regardless of the company and are not held in high regard. Some work, many don't. If someone made a high quality unit it would cost thousands of dollars. Sorry the news isn't that good.



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