Question about Optics

1 Answer

Barska information Hello, I 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. Thanks

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 44 Answers

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.

Posted on Jan 07, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

Tip

Harmony 900 Manual Download


Download Logitech Harmony 900 Remote Control Manual

5b3d12f.jpg

Have you misplaced your Logitech Harmony 900 Remote Control Owners Manual?

Would you like a digital, searchable, pdf version of the Logitech Harmony 900 Remote Control Users Guide?

Follow this link to download a pdf version of the operations manual.

I hope that helps.
__________________________________________
Logitech Harmony Firmware Update
Harmony Mac Software Download
Harmony Win Software Download
Logitech Harmony Safe Mode Fix
Harmony Remote Glow Light Fix

on Apr 30, 2010 | Televison & Video

Tip

Harmony 900 Manual Download


Download Logitech Harmony 900 Remote Control Manual

5b3d12f.jpg

Have you misplaced your Logitech Harmony 900 Remote Control Owners Manual?

Would you like a digital, searchable, pdf version of the Logitech Harmony 900 Remote Control Users Guide?

Follow this link to download a pdf version of the operations manual.

I hope that helps.
__________________________________________
Logitech Harmony Firmware Update
Harmony Mac Software Download
Harmony Win Software Download
Logitech Harmony Safe Mode Fix
Harmony Remote Glow Light Fix

on Apr 30, 2010 | Logitech Harmony 900 Remote Control

1 Answer

2009 Yamaha TDM 900 adjust headlight


Hi, Jeffcooper09 for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "Free" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Headlight adjustment
TRS Tips How to Adjust Headlights for the Perfect Aim
Yamaha 2002 TDM900 Service Manual
OEM parts for Yamaha
YAMAHA TDM900 Owner Manual

Apr 02, 2011 | 2009 Yamaha TDM 900

1 Answer

I have a Barska telescope. Model: 60800. Diam: 60mm Focal length: 800 mm. I think I put it together correctly, but I can not see anything through it... just black. Yes, I have taken the cap off the...


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.

Dec 31, 2010 | Optics

1 Answer

2002 Yamaha TDM 900 led is not displaying on dash


Hi, Twincitiesto for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
http://www.grizzlycentral.com/forum/grizzly-electrical-lighting/6465-digital-display-not-working.html
07 660 sport display not working
Yamaha 2002 TDM900 Service Manual
OEM parts for Yamaha
YAMAHA TDM900 Owner Manual

Nov 24, 2010 | 2002 Yamaha TDM 900

1 Answer

Need free wiring diagram for yamaha xj 900


Hi, Magslbw for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
1992 Yamaha XJ 900 wiring diagram Google Search
Yamaha Motorcycle Wiring Diagrams
Yamaha 95 XJ900S Service Manual
OEM parts for Yamaha
Yamaha Diversion 900 Owner Manual

Nov 17, 2010 | 1992 Yamaha XJ 900 F

1 Answer

I need the assembly instructions, please, for a Swift 60900.


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


Apr 08, 2009 | Optics

1 Answer

Looking for Owners / Operators manual for Acme MRS11 Dough Roller


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

Mar 26, 2009 | Doughpro Automatic Pizza Press

Not finding what you are looking for?
Optics Logo

Related Topics:

291 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optics Experts

kakima

Level 3 Expert

102366 Answers

james laughton
james laughton

Level 3 Expert

1851 Answers

ray gallant

Level 3 Expert

41075 Answers

Are you an Optic Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...