Question about Meade LX200GPS Telescope

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My LX200 GPS has fungus on the frontal (10' lens) on the inside, how do clean it up? Thanks

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You will need to remove the corrector plate. It must be replaced EXACLY inthe position before you took it apart. There are tiny cork spacers around the edge that center the glass. These must also be replaced exactly where they came out. Read both of these web sites:

http://www.astromart.com/articles/article.asp?article_id=594

http://www.televue.com/engine/TV3_page.asp?id=103

Posted on Jan 02, 2011

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Posted on Jan 02, 2017

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How to clean fungi on lens


The success o cleaning fungus off a lens depends on how far the growth has gone.Light fungus on the outside surface off the lens can be removed by wiping a thin smear of Dove cream on the affected surface and then lightly removing using cotton buds. Follow this with a light polish using lens cleaning cloth. Never use cleaning tissue, it will scratch. A useful tip is to wash the lens cloth in hot water and dish washing liquid and rinse and ry before use. Have a spare clean cloth ready.
If the fungus is to heavy to remove you will still get some improvement using this cleaning method. If the fungus is on the inside it is up to you to decide whether to dismntle the lens.

Mar 03, 2015 | Vivitar 100-400mm f/4.5-6.7 Series Lens

Tip

How to avoid fungus on Digital Camera Lens?


The dreaded fungus is something that bothers every photographer. I have suffered from it before, and every coming rain gives me constant worries of possibilities of fungus growing somewhere inside my lenses. I am more vulnerable to fungus than most people because I don't think much about taking out the camera to get some good shots even if it has been raining a bit, and have often got plenty of rain drops on the camera and the lens therefore.

Where does fungus comefrom?
  • Fungus spores are everywhere and germinate under suitable environmental conditions:
  • Relative humidity of at least 70% (more than 3 days)
  • No or little airflow
  • Darkness
  • Nutrients (textile lint, traces of grease, varnish, dust and dirt)
  • Temperatures between 10 and 35°C
How can fungus be avoided?
  1. Silica Gel. This seems to be the easiest and common way to avoid fungus, but I haven't had much success with it either.
  2. . Store the lenses in an airtight container. Again, you may need to put a few Silica Gels in the container. Putting too many of Silica Gel is known to dry out the lubricants in the lens, so you need to use your discretion with quantity of the Silica Gel.
  3. . A popular idea is to install a low wattage tungsten bulb in the closet where you keep the lens. This will keep the place warm and dry, preventing the fungus. This is known to work.
  4. . Store the lens in transparent container. Fungus is known to fear light and love darkness. Also make sure that the lenses are not stored in leather bags, as leather can easily attract fungus.
  5. And finally, of course, the best way to prevent fungus is to get out and shoot more often.
  6. After the work is done, immediately clean the instruments. If possible, you can use a fan or blower to facilitate evaporation of surface moisture.




on Feb 13, 2010 | Cameras

2 Answers

How to clean sigma 500mm 4.5 fungus


Do you have a lens collimator and other gear needed to ensure proper alignment when reassembling the lens? If not, try this. Put the lens inside a window where it receives directly sunlight. Yes, you'll probably have to move the lens every few hours to it continues to receive direct sunlight. Do this for a day or two. If the fungus persists then take the lens to a reputable camera shop and have a properly trained and equipped professional clean the lens.

Jul 20, 2014 | Sigma Cameras

2 Answers

Clean inside lens fungus


If you realy have fungus in your zoom lens, you can't do anything. If it does not show on the pictures, just keep the lens dry. (use silica gel) If you want it it be repaired, it will cost more than an new lens.

Oct 05, 2013 | Nikon Zoom-Nikkor 55-200mm f/4-5.6G ED...

1 Answer

What should i do?...my tamron 17-50 began to have a fungus.


Well, that's a great lens and most definitely worth the cleaning/service. I don't know where in the world you are but fungus growing inside a lens is only heard of in high humidity environments and can happen fairly quickly. Are you sure this is a fungus on the inside and not just a clouded smear on the front element? If the lens is having a problem then the camera won't be to far behind. To answer your question more directly "what should I do" my suggestion is to send the lens to a authorized Tamron service/repair center/depot for cleaning. After which get a few of those little moisture absorbing packets and place them in with your photo gear to help reduce the moisture.

Jan 19, 2011 | Tamron 17-50mm f/2.8 XR Di-II LD [IF] SP...

1 Answer

POSSIBLE MOLD INSIDE CAMERA LENS


It is lens fungus and you're correct in your assumption that it's uneconomical to professionally repair on your lenses. But it need to be pretty bad before it affects image quality so don't junk them just yet.

Some types of lens fungus can be killed simply by leaving the lens out in sunlight, but I'd suggest that it's better to leave them exposed to the indirect sunlight on a bright overcast day to prevent any chance of sharply focussed light burning the inside of the lens. Killing the fungus won't remove the dead stuff but it prevents the problem getting worse.

May 29, 2010 | Quantaray 100-300mm F4.5-6.7 Zoom Lens for...

1 Answer

Clean fungus rear lens


Oh This Could be a problem. But try just wiping it with a lens cleaning kit. If that dosnt work take it to a camera shop and let them work on it.

Aug 28, 2009 | Nikon Telephoto AF Micro Nikkor 105mm...

1 Answer

Hi, It appears there is a small amount of fungus inside my lens, and when taking a picture, it comes back very dark. What would a possible remedy be for this? Many thanks Jon


This is actually a very common situation for older lenses. You should take the lens to a trained technician and have them clean the inner elements of the lens. Often times they can, if the fungus isn't too bad. In extreme situations, they will need to replace the element itself.

Jul 05, 2009 | Sigma 24-70mm F3.5-5.6 AF Zoom Lens

2 Answers

Fungus in the lens


These lenses arn't designed to be taken apart.

A camera specialist may help but they should alwys be kept dry and at room temp never warm and humid. Silicate gel in your storage bag also prevents this from happening.

Good luck

Marc

Apr 16, 2009 | Mamiya RB67 Pro SD Medium Format Camera

1 Answer

Fungus inside lens


There's nothing but normal air inside your SE. Nikon will service this for you under their No-Fault warranty. See Nikonusa.com for details.

Dec 17, 2007 | Nikon Superior E Binocular

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