calibrating AZ-EQ5 polarscope

[nutrocker]

Hi,  Can anyone tell me how to calibrate AZ-eq5 polarscope  ( external fit type )  I understand first part   using ALT AZ knobs to centre object and then rotating polarscope and repeadtdly centering ny 50% until centered but it'the next phase i don't understand. Instructions says use ALT AZ to centre object in vertical line...ok  Release RA axis and rotate 180o and use screws to centre by 50%...ok now it says rotate RA axis back 180o and recentre object.   BUT do i do this with AL AZ bolts or with screws before rotating back 180o and recentering by 50% until centered.

If anyone can explain in real laymans terms i would be really grateful

Thanks,

Rob

[wookie1965]

http://www.myastroscience.com/polarscopecalibration

I used this and mine is spot on now

[nutrocker]

Hi,  Thanks for reply. Mine is foe the AZ-EQ5 GT mount and is a differnt type to this. You would think that calibration is same  but they are not. I am hoping someone can give me a real laymans guide to this job. 

 

Thanks,

Rob

[wookie1965]

I would think the principle would be the same mine is a EQ5 although not AZ but I cannot see it being that much different.

[wookie1965]

https://storage.googleapis.com/skywatcher-canada/upfiles/en_download_caty01440636363.pdf

Half way down shows how to polar align.

[nutrocker]

For me the Skywatcher instructions don't make sense.

[2STAR]

On 30/03/2017 at 20:28, nutrocker said:

Hi,  Can anyone tell me how to calibrate AZ-eq5 polarscope  ( external fit type )  I understand first part   using ALT AZ knobs to centre object and then rotating polarscope and repeadtdly centering ny 50% until centered but it'the next phase i don't understand. Instructions says use ALT AZ to centre object in vertical line...ok  Release RA axis and rotate 180o and use screws to centre by 50%...ok now it says rotate RA axis back 180o and recentre object.   BUT do i do this with AL AZ bolts or with screws before rotating back 180o and recentering by 50% until centered.

If anyone can explain in real laymans terms i would be really grateful

Thanks,

Rob

+Hi, your question has obviously not been answered as Polar Scopes differ , and you are just asking this not how to Polar Align which is a totally different Topic to your query !! I am waiting delivery of my az-eq5 gt and will be getting help to calibrate it hopefully, if I do I will pass it on to you.

eric

[2STAR]

Fortunately the polar scope did not require any calibration adjustement out of the box.

However, figuring out the new etchings is the next step !!

eric