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BG1209 no scheimpflug?

 
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Sat Feb 09, 2019 2:47 pm    Post subject: BG1209 no scheimpflug? Reply with quote


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Today I was at the home of a friend of mine who owns a BG1209. I had never worked on this projector and I realized that it does not have continuous focus adjustment at the corners. Do I have to insert shims between tube and lenses?

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Domenico (Barco fan!)
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deronmoped



Joined: 03 Nov 2006
Posts: 1125
Location: San Diego


PostLink    Posted: Mon Feb 11, 2019 7:42 am    Post subject: Reply with quote

I shimmed the lenses on my 10PG. I used some thin plastic between the lense and the C-element. It seemed to do the trick.
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SPL800



Joined: 10 Nov 2009
Posts: 126
Location: Israel


PostLink    Posted: Wed Feb 13, 2019 6:06 am    Post subject: . Reply with quote

deronmoped wrote:
I shimmed the lenses on my 10PG. I used some thin plastic between the lense and the C-element. It seemed to do the trick.


How do you know that you have to use them?
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deronmoped



Joined: 03 Nov 2006
Posts: 1125
Location: San Diego


PostLink    Posted: Fri Feb 15, 2019 3:48 am    Post subject: Reply with quote

It been a very long time since I shimmed the lenses, but what I remember was, I was not able to get uniform focus. I first tried loosening the lens hold down screws and tweaking them, to see if that did anything. I then added a shim, paper first then I ended up with thicker plastic. Now of course, this is after I had everything set up correctly and double checked, before I started to look for alternatives.
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