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James Cunningham
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Reged: 08/07/10

Loc: Maryland
going out of focus? new
      #5904057 - 06/05/13 02:24 PM

I have had my scope about 3 years now. Last night was the first time that I got a good focus at the beginning of the session but by the end of the session only 2 hours later, the scope was pretty far out of focus. Anyone else run into this problem after only 2 hours? Thanks.
Jim


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MikeBOKC
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Reged: 05/10/10

Loc: Oklahoma City, OK
Re: going out of focus? new [Re: James Cunningham]
      #5904344 - 06/05/13 05:03 PM

I don't think it is focus. More likely cooldown and changes in seeing. I find the need to fine tune focus frequently throughout a night depending on atmospheric conditions and what part of the sky I may be aimed at.

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FXDX
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Reged: 03/29/13

Loc: Good old Europe
Re: going out of focus? *DELETED* new [Re: MikeBOKC]
      #5906066 - 06/06/13 01:49 PM

Post deleted by FXDX

Edited by FXDX (06/06/13 01:52 PM)


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jerwin
scholastic sledgehammer
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Reged: 05/17/12

Loc: Romeoville IL
Re: going out of focus? new [Re: FXDX]
      #5906998 - 06/06/13 10:10 PM

Focus or alignment? I refocus each eyepiece, so i'm making adjustments all night.

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James Cunningham
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Reged: 08/07/10

Loc: Maryland
Re: going out of focus? [Re: jerwin]
      #5909244 - 06/08/13 06:48 AM

Its the focus. My alignments stay on target. I use a camera so I don't change eyepieces.

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