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New AP Right Angle Polar Scope

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#26 FaronD

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Posted 12 November 2012 - 12:16 AM

Hi Faron.
I followed Howard's suggestion about fine tuning the Pasill4L and this past friday I had my first light with the mount.
I did a 30 second polar alignment and it was precise enough to give me excellent goto's. Also the drift seemed to be minimal and very easy to guide out.
So thumbs up for the Pasill4 after the fine tuning!

Andy


That's great Andy! Tonight was the first opportunity for me to use my Pasill4. However, I only used it to put Polaris in the field of view of the polar scope. I probably won't have to use it much at all.

I purchased an excellent program called Alignmaster, I can't say enough about it. After only a few mins of polar aligning with the software, I was amazed at the accuracy. I'm still learning the whole package and my gotos are dead center already.

There wasn't time for a complete imaging session given the never ending cloud cover. I managed to take a 10min sub of M45 UNGUIDED to test it out. There was only the the slightest amount of rotation. The center stars were perfect. Once I add my autoguider to the package, this mount is going to be fantastic.

I'm ready to image!!

Faron

#27 andysea

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Posted 12 November 2012 - 03:36 PM

Yes I am familiar with align master. It's a very clever program. If I remember well the only issue that I had is that the mount had to be perfectly level on order for it to be accurate. Well, not really an issue but I would prefer to to have to worry about leveling the mount.

Andy

#28 andysea

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Posted 12 November 2012 - 03:41 PM

I just had quite a bit of discussion with George and Howard from AP- long story short, they say the right angle finder is good enough to do away with drift alignment hell.

-Rich


Hi Rich,
Yes that't what I was told too. However I think the PASILL4L gives me enough accuracy that I am able to guide out any residual drift plus I don't have to worry about setting the mount level int he E-W direction. I can see how a more accurate alignment would be necessary if one wanted to shoot unguided, but other than that the standard polar scope seems to be sufficient for most imaging purposes. What do you think?

Andy

#29 mewmartigan

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Posted 13 November 2012 - 03:23 PM

I would love the new right angle scope.

I have the PASIL4L and its okay but I was never able to get it centered properly so it didn't shift when you rotate the scope to get the big dipper where it should be each night. i tried all the tricks with tape, spoke to AP on the phone, etc. Never got it aligned all that well. Maybe its just me :)

#30 Dave M

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Posted 30 November 2012 - 09:53 AM

Just wondering if anyone received thier new Right Angle polar scope yet.
Web site now shows " late December " but i think thats
for those on the list for the second batch.

#31 Starhawk

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Posted 30 November 2012 - 11:33 AM

I've always ended up doing a full drift alignment with or without a polar alignment scope. I am still personally at the point of needing to see a polar scope give an alignment good enough to do that on the first try.

The time-wise reticle in the new AP alignment scope makes a lot of the guesswork as to where Polaris should appear go away- so I'm not saying what they are doing is impossible, it's just I've had a lot of disappointment in the quality of polar scope alignments. The worst effect is swirl in the image, which becomes a bigger problem the wider your field of view is, so it's not really fixable by guiding alone.

I'm wondering how hard it is to change reticles in another polar finder just to be able to watch the alignment accuracy and see if the AP method by itself really is that accurate.

-Rich






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