Have a Barska model 60900 Diam: 60 mm, focal 900 mm, I've misplaced my owner's manual, and software, I was wondering if you could help me with this.

The power of the scope will be the focal length of the main objective (yours is 800mm) divided by the focal length of the eyepiece, so a 9mm eyepiece will give a higher magnification (and be dimmer and harder to focus and find objects) than a 20mm eyepiece. It is usual to have two or three different focal length eyepieces for viewing different objects.

Starting out, you want to use the lowest power, so the highest number, eyepiece. Do NOT use the Barlow lens if one came with the scope. Try it out during the day (but never point a telescope anywhere near the Sun). This will make it easier to find the focus point. There is a very wide range of movement in the focus mechanism, because different eyepieces focus at different points, but the actual focus range for any eyepiece will be a small part of the overall range afforded by the focusing mount.

It is unlikely that the finder scope will be much use in pointing the telescope until you adjust it to precisely line up with the main scope. Most manuals recommend that you do this in daylight, by pointing the scope at an object on the horizon and adjusting the finder to match. Once you have a tree or mountain peak in the center of the main scopes image, you can then adjust the screws around the finder scope to get the crosshairs centered on the same object. It is very difficult to do this job in the dark, especially as objects in the sky are constantly on the move.

Remember that astronomical telescopes usually show an upside down image. There is a good reason for this- erecting the image needs more bits of glass in the light path, which reduces the amount of light and increases aberrations. Even if this is only slight, astronomers prefer to avoid it, and they don't really care which way up the Moon or Jupiter appear. It is possible to fit an erecting prism or eyepiece to most astronomical telescopes, and some of them come with one.

Go to Barskas service/help desk, their Email; [email protected] , they are in California and are quite helpful.

Good luck. :)

I think I already answered your question--- look here for a MEADE manual that is similar to your telescope-- they all pretty much assemble the same way---

http://www.meade.com/manuals/index.html

I looking for a Owners/Operators manual for Acme DMX bench dough roller date 11-17-98 serial 1140

This scope will use a 1.5 volt button battery that is 4.2 mm thick and from 11 to 16 mm wide. A thin rubber washer can be used with a V386 battery or a LR43. Both are 11.6 mm by 4.2. My scope came with a thin 16x12 mm ring made of plastic so that the battery would be held firmly into the center position.
After a close inspection, it is possible that a similar sized battery that is 3.6mm thick/thin might work also, but would have a shorter life due to less capacity.

I hope this is helpful. If not, I would be happy for you to sell me your scope for another gun of mine! :-)

[email protected]

Barska is one of the many brands stamped on Asian made optics. Many of the models they sold were sold by Celestron and others. Go to the Celestron web sit and poke around in the download archives.for manuals and I'm sure you can find a manual that covers a model similar to your Barska. Start with the FirstScope series.

Their is a lot of excellent astronomy freeware available, just google for it.
Geo.

Hi lilwing,

I'm Harvey the Master Plumber.

Your question is: you have a ge dishwasher you purchased two years ago. you have misplaced your owners manual. you can only tell you it is a ge quietpower 3. you don't even know the model since you've misplaced your owners manual. it started with the timer for speed cycle set itself between 50 and 60 minutes, and you knew that wasn't right. and then yesterday it did not drain all the water out. you know there is no food particles in it because you clean them before you put them in the washer and the drain line it is hooked up to is working proberly also. can i help?

First, the model and serial numbers are in the door jam. Open the door and look right and left.
The rest sounds like a bad control board, It will require a pro. If the d/w has a few years on it you may want to consider the price of repair verses replacement.

Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
Harvey your Master Plumber