Question about Meade DS-2114 ATS (325 x 114mm) Telescope

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How do I clean the primary mirror it has smudges

How do I clean the primary mirror it has smudges on it

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Watch this video:

http://vimeo.com/channels/tas

It's the second one down from the top-- cleaning a telescope mirror.

Posted on Aug 31, 2010

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Posted on Jan 02, 2017

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I have a hitachi 55vf820 lcd rear projection tv. How do you get the cover off to clean mirror?


Don't try that as the mirror almost never needs cleaning and MUST be cleaned with a special cleaner---leave a single fingerprint on that mirror (or a smudge) and it will stand out in the picture like a sore thumb.

Reason to clean mirror?

Apr 09, 2012 | Televison & Video

1 Answer

How do I clean Sony KP-61XBR300


The mirror rarely needs it---access for it requires removal of entire screen unit------the lens (3) can easily be reached from rear with the back removed---you also at that time can look up to see if mirror is dirty or smudged.

Mar 25, 2012 | Sony KP-61XBR300 61" Rear Projection...

1 Answer

I can't find any documentation on how to remove the primary mirror for cleaning. I'm a newb and don't want to mess anything up. Thanks, Bob


First -- how do you know the mirror needs cleaning? Did you shine a flaslight down the tube and see some dust? Never use a flashlight to determine if a mirror is dirty-- they are ALL dirty when you use a flashlight to check them.

Only clean the mirror if it is interferring with the views through the scope.

There is a ring around the back-- remove those screws and the mirror should come out-- don't driop it! Then remove the mirror from the mirror cell.

Sep 03, 2011 | Celestron Advanced C10-NGT (600 x 254mm)...

1 Answer

My pictures all come out with a smudge depending on the focus is howm noticeable it comes out on the image


This is almost certainly due to dirt on your lens or mirror - possibly your sensor. If you have two interchangable lenses try them both and see if there is a difference. If no difference the mirror or sensor is probably dirty. In either case, I would suggest you have them cleaned professionally unless you are confident about working inside your camera. If there is no smudge with one lens then the other lens must be dirty. Clean both ends carefully with soft, lint free cloth.

Jun 28, 2011 | Sony Alpha DSLR-A100 Digital Camera

1 Answer

I have a Tasco 302911 (Old model) D=114mm F=500mm that has been sitting around in the closet for some time. Has become dirty from sitting around and would like to clean up and adjust as required. Would...


The only thing fragile are the main primary mirror and the smaller secondary mirror anything else can be cleaned with Windex and or Pledge.

To learn how to clean the mirrors read this:

http://www.astro-tom.com/tips_and_advice/cleaning_optics.htm#article1
The mirror should be VERY dirty or leave it alone.

You must do this gently or you will scratch the mirror. Once the mirror is clean you will need to re-collimate the scope. Watch this video:
http://www.andysshotglass.com/Collimating.html:

Aug 03, 2010 | Tasco Galaxsee 46114500 (500 x 114mm)...

1 Answer

Tried to clean mirror and now it is kind of smudged, will this affect picture?


not really, but I'd make sure that the mirror is spotless. Take the time to do it right.

Feb 04, 2010 | Pioneer PRO-620HD 58" Rear Projection...

1 Answer

Changed cartdrige copies still come out with black smudge over text


Try to clean optical section, mirrors , lens , lamps, coronas discharges.

Feb 24, 2009 | Ricoh Office Equipment & Supplies

2 Answers

Primary reflector became dull with time.


The primary mirror is VERY delicate -- first surface mirror. Without a doubt you damaged it using auto polish. Mirror are cleaned very very gently using running water and alcohol-- and a tiny amount of dish soap... here is an article--
http://www.dvaa.org/ATM/MirrorCleaning.html

You can buy mirrors --- but they will be almost as expensive as a new telescope.

Jan 09, 2009 | Meade Polaris 114EQ-D (36 x 114mm)...

2 Answers

Pentax ME super dirty mirror


Don't even think about cleaning the mirror in your SLR. For smudges and marks that can't be blown away with a handheld blower, you really need to have it cleaned by a repair shop. Most technicians clean mirrors with a special viscous fluid specially formulated to protect the fragile surface of the mirrors. Definitely do not attempt it with a standard lens cleaning solution or cloth as you could cause irreparable damage.

Keep in mind that this will not require disassembly of the camera, so the charge should be nominal

Nov 24, 2008 | Pentax ME Super 35mm SLR Camera

1 Answer

Smudge looking marks onscreen


If you suddenly noticed it, this is most likely caused by a large piece of dust on the lens. It is hard to clean, you would need to take the whole TV apart in order to get to the lens (mounted on the optical block).

It could also be caused by a failure of the optical block, which had inherent issues. There is a pending class action law suit against Sony for problems with optical block that include smudges, hazes, and tints that appear after a certain number of hours.

Other causes could be a dirty portion of the mirror or a smudge on the inside part of the screen but these are rare because dust and contaminants do not usually accumulate on these parts of the TV.

Jul 14, 2008 | Sony KDF-E60A20 60 in. LCD HDTV

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