Question about Zhumell Commodore Brass Nautical Telescope 8040-COMM w/FREE UPS

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Inability to focus on close objects

My Zhumell Commodore brass telescope is an extremely handsome instrument. However, I find that I cannot focus on anything closer than about 50 meters. The focus knob doesn't help. Is there any other adjustment I can make to allow me to focus on closer objects?


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Thats most likely its focal point. 50 yards you will have to unscrew the view lens and make an adapter out of a paper towel roll and keep working with it till you get what you want. Its just the way it was made.

Posted on Jul 03, 2009

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When using telescope for the first time (looking at venus) it would not focus, also the cross at the front of the tube was most prominent.

Do stars appear as small pinpoints in your scope? If not then it sounds like you have not adjusted the focus properly. I recommend you take your telescope outside in the daytime and point it toward a building or tree or hilltop that is somewhat distant from you. The exact distance is not important, but it should a block or more.

With the telescope pointed at the distant object, focus the telescope until the object is sharp and clear. The object might appear upside down -- that's normal for many astronomical telescopes. When you have achieved a sharp focus, leave the focus control alone until you are outside at night under the stars.

The focus should now be fairly close for viewing stars and planets. Small adjustments of the focus control may still be necessary for the sharpest view.

Venus is sometimes a difficult object. It is often fairly low in the sky where the atmosphere is most likely to blur the view. Find a bright star and focus it to a pinpoint, then swing your scope toward Venus.

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