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ieEQ45 polar scope focus?

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#1 Midnight Dan

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Posted 01 May 2011 - 08:57 AM

I finally had a clear night last night and got out with the iEQ45. Everything worked great, but I had a problem focusing the polar scope.

The only thing I could see to use for focusing is the ring around the eyepiece which seems to screw in and out. As I screwed it out, the stars came into focus but the reticle did not. I continued turning it till the reticle came into focus, but the the stars were not.

I couldn't like Polaris up accurately and could only get it in the general vicinity. This was ok because I was just getting used to the mount and learning the setup procedures. I was doing any imaging. But it seems like there should be some way to focus the scope on the stars, and then focus the eyepiece on the reticle separately.

What am I doing wrong?

-Dan

#2 skoop

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Posted 01 May 2011 - 12:35 PM

I can not see Polaris from my "home" location. Can iEQ45 be aligned without polar scope?
Let me re rephrase this - is there a software assisted polar alignment or something similar?

Thank you.

#3 Midnight Dan

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Posted 01 May 2011 - 01:22 PM

Hi Skoop:

There's no software assisted polar alignment in the iEQ45. You could do a drift alignment, or I think there may be some external software you can run on a laptop that may do it.

-Dan

#4 LouP

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Posted 01 May 2011 - 02:43 PM

Keep turning that ring until the rectile comes into focus. I did that in my home before I took it out to the field.

LouP

#5 PHampson

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Posted 01 May 2011 - 06:15 PM

You can unscrew and remove the whole polar scope in the IEQ45 without affecting the centering, etc. Take the polar scope out and use the objective (far) end to focus at infinity for your eyes so the stars will be in focus. It's usually good enough to do this in daytime aiming at a very distant object. Then just screw it back into place and use the 'eyepiece' end to focus the reticle, etc. as you've already discovered.


Paul

#6 Midnight Dan

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Posted 01 May 2011 - 08:21 PM

Hi Paul:

Is there any trick to unscrewing it? I tried it by hand and it wouldn't budge.

-Dan

#7 Midnight Dan

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Posted 01 May 2011 - 08:48 PM

Hi Paul:

Never mind!

I gave it a bit more oomph and got it to unscrew. I guess I wasn't trying hard enough before because I wasn't sure it would come off and I didn't want to mess something up. Anyway, I can focus it now. Thanks for the tip!

-Dan

#8 Midnight Dan

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Posted 01 May 2011 - 08:49 PM

Keep turning that ring until the rectile comes into focus. I did that in my home before I took it out to the field.

LouP


Hi Lou:

My problem was that the reticle and the stars did not come into focus at the same point.

-Dan






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