Question about Optics

Open Question

Jason rotary telescope

I am looking for a finder scope for a Jason Rotary 540 telescope I have just obtained in what I thought was a sealed box. Any suggestions as to a replacement or other solution would be very much appreciated. I actually have the instructions that seem to be so elusive and would be happy to scan and e-mail them to anyone who needs them. They're not very detailed or comprehensive, so don't get your hopes up and expect a ton of tips or information aside from assembly and basic operation.

Posted by on

5 Suggested Answers

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

SOURCE: Jason 313 telescope doesn't focus properly. Can

Put the eyepiece with the largest number written on it into the telescope. DO NOT use the 2x barlow if you have one. Go outside during the day time and practice focusing on a distant object.

The moon should be your first target.

Posted on Nov 01, 2009

SOURCE: I have a Jason Rotary Power 540 and cannot see

Do not turn "on" the 2x barlow attachment. Use the LOWEST power eyepiece on the turret. (the one with the largest number in mm written on it).

Go outside during the daytime and practice focusing on a distant object.

Sorry, but that small 60mm telescope will NEVER get to 500 power. The maximum possible power if everything is perfect is 50 times aperture. So your scope would be around 75-90 power only-- MAXIMUM, applying more power will make the sky object larger BUT fuzzier and much more dim.



Posted on Nov 08, 2009

SOURCE: i can not focus the finder scope

Most finders focus by either turning the lens, or the eyepiece portion of the finder. Look through the eyepiece at a distant object and try turning one or the other as described above.

Posted on Jan 18, 2010

SOURCE: need the manual for Jason

Sorry there are no manuals for that imported telescope. However Tasco has a web site with their manuals-- find one that is similar to your scope as they assemble in a similar fashion.

http://www.tasco.com/pages/instruction-manuals/

Posted on Jul 23, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do i use the jason rotary power astronomical telescope


I found this! https://picclick.com/Jason-Model-500-DSM-Rotary-Power-Astronomical-Telescope-By-252296676560.html

May 26, 2014 | Jason Rotary Power Astronomical Telescope,...

1 Answer

Need the manual for Jason Rotary Power 540


Sorry there are no manuals for that imported telescope. However Tasco has a web site with their manuals-- find one that is similar to your scope as they assemble in a similar fashion.

http://www.tasco.com/pages/instruction-manuals/

Jul 22, 2011 | Optics

1 Answer

Looking for manual and general set-up for jason 410-mercury telescope. thank you, rt


Sorry no manuals on the internet for that scope. However Bushnell, Tasco, and Meade all have web sites with manuals for all of their telescopes. Here is the Bushnell web site-- find one similar to your scope. They all assemble in a similar way--

http://www.opticsplanet.net/bushnell-warranty.html

Mar 25, 2011 | Optics

1 Answer

I can not focus the finder scope


Most finders focus by either turning the lens, or the eyepiece portion of the finder. Look through the eyepiece at a distant object and try turning one or the other as described above.

Jan 18, 2010 | Bushnell Deep Space 78-9512 (120 x 60mm)...

2 Answers

I have a Jason Rotary Power 540 and cannot see anything when looking in the view lens. Yes, I have the cover off at the other end


Do not turn "on" the 2x barlow attachment. Use the LOWEST power eyepiece on the turret. (the one with the largest number in mm written on it).

Go outside during the daytime and practice focusing on a distant object.

Sorry, but that small 60mm telescope will NEVER get to 500 power. The maximum possible power if everything is perfect is 50 times aperture. So your scope would be around 75-90 power only-- MAXIMUM, applying more power will make the sky object larger BUT fuzzier and much more dim.



Nov 08, 2009 | Bushnell Optics

1 Answer

Jason 313 telescope doesn't focus properly. Can


Put the eyepiece with the largest number written on it into the telescope. DO NOT use the 2x barlow if you have one. Go outside during the day time and practice focusing on a distant object.

The moon should be your first target.

Nov 01, 2009 | Optics

2 Answers

I need a user manual for a Jason by Bushnell Reflecting Telescope


Here: Find your telescope manual-
http://www.opticsplanet.net/bushnell-warranty.html

Jul 11, 2009 | Bushnell Optics

1 Answer

The manual of jason 200x telescope


Bushnell purchased Jason in 1992, they can refer you to a manual for similar products that they currently manufacture.
UNITED STATES
Bushnell Corporation
9200 Cody
Overland Park, KS 66214-1734
Important Phone Numbers:
In Kansas City area - (913) 752-3400
Consumers - (800) 423-3537
Dealers - (800) 221-9035
Fax - (913) 752-3550
There is no reference to Jason scopes on their website, here's some of the history if your interested: Jake Levin founded Jason/Empire, Inc. in 1947. Jake and his son,
****, started the business by importing binoculars from France, as
well as cigarettes and pearls from the Orient. The product was sold
to jewelry stores and catalog showrooms. The company's name was
created by shortening the name of Jake and Son, to get Jason. Empire
was the name of a brand of products the company sold. Jason's
original location was on the 8th floor of a building at 12th and
Walnut in downtown Kansas City, Missouri. The company later moved to
a facility in Kansas City on Warwick Boulevard. As the business
continued to grow, **** was responsible for the expansion and
evolution of the binocular and telescope business into a major
competitor in the U.S. Sports optics market.
Carson Companies, Inc. of Minneapolis acquired Jason/Empire, Inc. in
1977. In 1987, Jason introduced the Perma Focus binocular. This
patented binocular eliminated the need for focusing and revolutionized
the binocular industry. GlassOn, the first binocular exclusively for
eyeglass wearers, was introduced in 1991. The eyeglass wearer could
obtain a wide angle, full field of view when using the binoculars
while wearing eyeglasses. Other innovations included: the graphite
binocular, upscale consumer packaging, **** packaging, the Easy
Track telescope mount, and the telescope dual-position diagonal
eyepiece.

In 1992, Bausch & Lomb a.k.a. Bushnell, purchased Jason from Carlson
Companies and moved the sports optics operation to the current
facility in Overland Park, Kansas. The name of the division was
changed from Bushnell to Bausch & Lomb Sports Optics Division.

Bausch & Lomb divested the Sports Optics Division in 1995 and Bushnell
became a wholly owned subsidiary of Worldwide Sports & Recreation, Inc
(WSR). WSR was a leading designer, manufacturer, and marketer of
brand name sporting goods and outdoor-recreational products.

Since then, Bushnell has changed hands again and the Jason name has
been discontinued. It is no longer used in new products produced by
Bushnell and many of the more popular models were simply rebranded as
Bushnell models.

Jun 01, 2009 | Binoculars.com Jason Folding Compact...

1 Answer

Need help with a Jason 400x telescope, how do we use it


Insert the diagonal into the back of the focuser and use the thumb screws to lock it into place.  Then insert a low-power eyepiece into the diagonal and use the thumb screws to lock it into place.  Low power eyepieces have the higher numbers on them.  20mm is lower power than 10mm.  Point it at a target off in the distance (NEVER point it at the Sun, or you will burn your eyes and go blind!).  Then, using the thumb screws on the smaller finder telescope, adjust it so it is centered on whatever object you have in the main telescope.  At this point you can use the smaller finder scope to point the main telescope at object in the night sky, and they should then show up in the main telescope.

Apr 26, 2009 | Bushnell Optics

Not finding what you are looking for?
Optics Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optics Experts

Joe Lalumia aka...
Joe Lalumia aka...

Level 3 Expert

3186 Answers

kakima

Level 3 Expert

102366 Answers

Mark Campeau

Level 1 Expert

44 Answers

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

Answer questions

Manuals & User Guides

Loading...