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#1 SRTS1

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Posted 27 March 2007 - 02:59 PM

I cracked the glass filter that covers the CCD chip.  I tightened the ring to muck which ultimately cracked the filter.  Anyone else had this problem, or know where to get a replacement?
14" LX200GPS
6"  LXD55
ETX-125

#2 Mark Sibole

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Posted 29 March 2007 - 05:28 AM

The glass you are refering to is the IR block filter.
You can try calling Meade to see if the can get you another 1 or you can get a baader IR filter that may screw in the nose piece if its 1.25 thread size.
Im not sure on the thread size as I dont own a LPI but see if 1 of your other filters thread in the nose piece.
It it does thread in the baader will work fine.


regards

Mark
Mark Sibole
MTSO Observatory
Fife Lake, Mi.

http://astronomy.qteaser.com

#3 SRTS1

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Posted 29 March 2007 - 11:53 AM

Thank you for the info Mark.  What would happen if I used the LPI w/o the IR filter?
14" LX200GPS
6"  LXD55
ETX-125

#4 Mark Sibole

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Posted 29 March 2007 - 09:30 PM

Generally for the short exposures the main thing will be color balance.
The Ir filter helps set the color and without the IR filter your colors will be slightly off.
You can try it and see how far they are off  if it isnt to bad you can probably live without the IR filter.

Regards


Mark
Mark Sibole
MTSO Observatory
Fife Lake, Mi.

http://astronomy.qteaser.com

#5 SRTS1

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Posted 05 April 2007 - 02:01 PM

I will try it and see.  Thank you.

Chris
14" LX200GPS
6"  LXD55
ETX-125

#6 Tony

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Posted 24 April 2007 - 03:18 PM

I did the same thing. I unscrewed the nose housing to release the glass... in pieces, but the rectangular filter seemed in tact... i. e. not crack running through it, so I carefully put clear packing tape around the rectangular filter patch to hold the glass in one piece and provide some "cushioning" for when I re-assembled it... works fine

#7 SRTS1

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Posted 26 April 2007 - 12:11 PM

I did the same thing. I unscrewed the nose housing to release the glass... in pieces, but the rectangular filter seemed in tact... i. e. not crack running through it, so I carefully put clear packing tape around the rectangular filter patch to hold the glass in one piece and provide some "cushioning" for when I re-assembled it... works fine


How did you reassemble it?  Did you leave the tape on the filter?
14" LX200GPS
6"  LXD55
ETX-125

#8 Tony

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Posted 26 April 2007 - 02:10 PM

The glass disk had cracked in several places, but the small rectangular IR filter was stuck to one of the pieces and in one piece... so the tape didn't need to cover it. I did the same thing on my first DSI color camera... dark is hard on equipment!

#9 SRTS1

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Posted 25 May 2007 - 03:21 PM

The glass disk had cracked in several places, but the small rectangular IR filter was stuck to one of the pieces and in one piece... so the tape didn't need to cover it. I did the same thing on my first DSI color camera... dark is hard on equipment!


LOL very true!  Of course mine cracked right through the middle, so, off to the parts counter.
14" LX200GPS
6"  LXD55
ETX-125

#10 signs

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Posted 23 March 2008 - 07:54 AM

my lpi didn t come with a glass covering the end
just a none threaded black tube
when you look into it you can see the electronic receptors
no cover
hummm

#11 Fish Cat Fish Dog

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Posted 23 March 2008 - 03:17 PM

my lpi didn t come with a glass covering the end
just a none threaded black tube
when you look into it you can see the electronic receptors
no cover
hummm



I believe they are talking about the glass directly on top of the CCD and not on a threaded part.  At least I hope so because that is the way my LPI is.




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