Dew in TS GPU Coma corrector - Complete Nonsense

Equipment Troubleshooting Help Needed
5 replies•643 views
RolkaK avatar
RolkaK avatar
Hi guys,

Has anyone had problem like this?
In my case it's even worse...

As I was not able to get rid of humidity inside the CC, so I removed the outer lense for cleaning...
(Lense was holding inside quite well even without a holding ring... So I had to shake a bit... holding CC upside down...)
Long story, short, - all lenses and spaceres inside the CC fell out of the CC tube/holder, flipped, mixed and....

I have no way to trace how to put them back in the correct order and side....
In request to help and to provide any guiding or scheme how to put all back into the CC tube/holder, TS Optics replied quite strange...
"they (the  manufacturer) would definitely have some informations about it, but due to trade and company secrets, they will not give any details, unfortunately."

If anyone does, - I would be grateful as I will spend whole week or even two, by placing such a mount of lenses and spacers in the different orders and sides, plus focusing-testing, to figure out the correct order.
Bob Lockwood avatar
Bob Lockwood avatar
Hi RolkaK,

I don't use any of that type of equipment, but since no one has answered, I'd say you have 3 options. Keep trying, you may get lucky, ask TS Optics if they will put it back together if you send them all the parts, or buy another one. Taking an optical assembly apart is always a bad idea and should never be done. You may have had good intensions, but…
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Philipp Weber avatar
Philipp Weber avatar
Hi guys,

Has anyone had problem like this?
In my case it's even worse...

As I was not able to get rid of humidity inside the CC, so I removed the outer lense for cleaning...
(Lense was holding inside quite well even without a holding ring... So I had to shake a bit... holding CC upside down...)
Long story, short, - all lenses and spaceres inside the CC fell out of the CC tube/holder, flipped, mixed and....

I have no way to trace how to put them back in the correct order and side....
In request to help and to provide any guiding or scheme how to put all back into the CC tube/holder, TS Optics replied quite strange...
"they (the  manufacturer) would definitely have some informations about it, but due to trade and company secrets, they will not give any details, unfortunately."

If anyone does, - I would be grateful as I will spend whole week or even two, by placing such a mount of lenses and spacers in the different orders and sides, plus focusing-testing, to figure out the correct order.

Hi,
as I understand the GPU from TS is essentially a clone or as they say "improved version" of the GPU from Hungary. Teleskop Austria has an image on their site which shows the sequence of the parts inside: https://teleskop-austria.at/KomakorrF4_Komakorrektor-fur-f-4-Newtons-4-linsig-Arbeitsabstand
Maybe this can help you.
Ciao,
Philipp
RolkaK avatar
RolkaK avatar
Bob Lockwood:
Hi RolkaK,

I don't use any of that type of equipment, but since no one has answered, I'd say you have 3 options. Keep trying, you may get lucky, ask TS Optics if they will put it back together if you send them all the parts, or buy another one. Taking an optical assembly apart is always a bad idea and should never be done. You may have had good intensions, but...

It has 4 lenses, once dew is in, - it does not vanish as it is locked inside quite well ... I tried to place it on the radiator for a whole week, - but dew created lots of mess inside which needed to be cleaned.
RolkaK avatar
RolkaK avatar
Philipp Weber:
Hi guys,

Has anyone had problem like this?
In my case it's even worse...

As I was not able to get rid of humidity inside the CC, so I removed the outer lense for cleaning...
(Lense was holding inside quite well even without a holding ring... So I had to shake a bit... holding CC upside down...)
Long story, short, - all lenses and spaceres inside the CC fell out of the CC tube/holder, flipped, mixed and....

I have no way to trace how to put them back in the correct order and side....
In request to help and to provide any guiding or scheme how to put all back into the CC tube/holder, TS Optics replied quite strange...
"they (the  manufacturer) would definitely have some informations about it, but due to trade and company secrets, they will not give any details, unfortunately."

If anyone does, - I would be grateful as I will spend whole week or even two, by placing such a mount of lenses and spacers in the different orders and sides, plus focusing-testing, to figure out the correct order.

Hi,
as I understand the GPU from TS is essentially a clone or as they say "improved version" of the GPU from Hungary. Teleskop Austria has an image on their site which shows the sequence of the parts inside: https://teleskop-austria.at/KomakorrF4_Komakorrektor-fur-f-4-Newtons-4-linsig-Arbeitsabstand
Maybe this can help you.
Ciao,
Philipp

Thanks,
Will try this way, - it looks quite similar, - just few smaller  rings are missing, but maybe I will get lucky...
Ruediger avatar
Ruediger avatar
It has 4 lenses, once dew is in, - it does not vanish as it is locked inside quite well ... I tried to place it on the radiator for a whole week, - but dew created lots of mess inside which needed to be cleaned.


Hi RollaK,

Unfortunately I cannot help with the assembly of the CC, but one advice I may share (maybe useful when you successfully reassembled the puzzle) :
Instead of putting it on a radiator, but it in a air tight Tuber Ware together with fresh silica, because the warm air over the radiator contains even more absolut moisture than the surrounding, cooler air.  The silica gets it down to 3%-5% easily what you never will achieve when exposed to surrounding air. 

CS
Rüdiger
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