Guide :Optics : LXD55 AR5EC Achromatic 5 in f9 Refracting Telescope 05095503

LXD75 AR6-AT I have a problem with the doublet lens. I seem to be able to collimate it, but there is still light that spreads out from stars and planets that are brite. Also when I'm handling the scope to place it on the mount I hear a clunking sound from the objective lens. I think the secondary part of the doublet is loose. I see the concentric rings when I attempt to collimate the scope but the blob of light that forms when you defocus the scope, forms beside the star and not on top (as I would expect). If the corrector lens is loose an slumping down from it's correct tightened spot would this cause the image to spray light from where it's meant to? Can I repair this or should I return the scope to Meade?

Posted by rcozoner on Dec 18, 2007

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We did not find results for: lxd75 ar6 at i have a problem with the doublet lens i seem to be able to collimate it but there is still light that spreads out from stars and planets that are brite also when i m handling the scope to place it on the mount i hear a clunking sound from the objective lens i think the secondary part of the doublet is loose i see the concentric rings when i attempt to collimate the scope but the blob of light that forms when you defocus the scope forms beside the star and not on top as i would expect if the corrector lens is loose an slumping down from it s correct tightened spot would this cause the image to spray light from where it s meant to can i repair this or should i return the scope to meade.

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LXD75 AR6-AT I have a problem with the doublet lens. I seem to be able to collimate it, but there is still light that spreads out from stars and planets that are brite. Also when I'm handling the scope to place it on the mount I hear a clunking sound from the objective lens. I think the secondary part of the doublet is loose. I see the concentric rings when I attempt to collimate the scope but the blob of light that forms when you defocus the scope, forms beside the star and not on top (as I would expect). If the corrector lens is loose an slumping down from it's correct tightened spot would this cause the image to spray light from where it's meant to? Can I repair this or should I return the scope to Meade?


I have the identical issue --- AND It did not have it when it was new. I was returning from a road trip, and heard the rattling cell get louder and louder in the back seat. When I got home, the retaining ring that keeps the doublet in the cell had almost fallen out. I GENTLY checked for lens damage and noticed that one of the three tiny foil spacers between the lenses had fallen out and was missing. I tried to fabricate one out of aluminum foil, but upon reassembly, I have symptoms identical to the ones you describe. No matter what I've tried, I still have the same symptoms. I'm getting close to giving up and sending the cell to Meade to service. I suspect the issue is that the dimension of the tiny spacers and when one falls out or is replaced with the wrong size, we get the symptoms.
Read More At : LXD55 AR5EC Achromatic 5 in f9 Refracting Telescope 05095503...

I bought a ft 700 and it has a cylender under the lens and it had came unglued and was flopping around as a result i would hit the power button and nothing the only thing that would come on is the ir light when pushed i took the lens off and epoxied the item back in place and turned on and still didn't work should i see a light when i hit the power button or only at night in pure darkness


I don't unstand about the cylinder under the optical lens. Let me ask a few questions, OK.first, what type of battery does the Famouse Trail 700 use? Where on the NV Monoculars is the battery compartment on the top or bottom or on the back side? General question, have you or anybody else been pointing or observing bright lights with monoculare while the NV monocular been on. If has been observing bright light during the night or day.... It has died and has going back to Red Star. Just send me more information, and don't tell me about the color wires. In these Russian manufactured NV devises they use teflon white wire, every now and then a light pink wire will show up. stewbison.... like American Bison Meat!
Read More At : Calypso FT700 Monocular...

I struggle to use the finder scope on the telescope, is it rubbish or is it me. i would like to change the rdf but it looks like its unique to this scope, nothing else looks like it, the mount does not look like any other mount on other rdf, i,m i stuck with this one or are they any other rdf i could use on this scope with the same mount. the telescope is fab but spend most of the time trying to aline rdf. celestron is such a big manufacture in telescopes and dont recon they would supply a scope with a hard to use finder. 2 red dots and 2 circles need to be lined up at an object, in day light fine but a nightmare against the dark sky, any tips if i'm stuck with it? cheers


No you can buy many different kinds of finder scopes and mounts-- look here:http://www.telescope.com/control/accessories/telescope-finder-scopes
Read More At : AstroMaster 130 EQ Reflector (65 x 130mm) Telescope...

Missing a piece of my RX-9 +venture


You are missing the 2 inch to 1.25 inch adapter, that fits into the focuser so you can use 1.25 inch eyepieces.Here:http://www.agenaastro.com/Blue-Fireball-2-to-1-25-Eyepiece-Adapter-p/paar-bf-e04017.htm
Read More At : 675x5 EQ Reflector Telescope...

PST CaK, can't see any light coming through.


I don't know quite what you mean by the "finder" as it doesn't come with a finder scope but it sounds as if it wasn't pointed directly at the sun.
Read More At : P.S.T. CaK Telescope...

What lens do i insert into scope to view the moon


The moon is big so use the 25mm. The Barlow will have a multiplication marking on it 2x 3x etc. A 2x Barlow lens will effectively double the power of the eyepiece you are using. Do not use the erecting eyepiece for anything other than land viewing. Erecting eyepieces generally reduce the amount of light reaching your eye and thus reduce brightness of the faint objects in the sky.So basically just place the 25 mm lens in the focuser and point the scope at the moon and you will be amazed at what you can see and how bright it is.
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Objective doublet assembly


This should help you reassemble correctly--http://www.cloudynights.com/documents/cleaning2.pdf
Read More At : AMT...

US Navy 1940 Mk-1 16-power telescope


Click here to open and download maintainance manual for the 1942 model that should be very similar to yours.
Read More At : Optics...

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