Hi,
In my and two friends' experience, a quite close polar alignment obtained from Sharpcap 3.1 is reported as somewhat less accurate by other followup apps. I don't have very many specific numbers, sorry. I got a 1' 30" difference in Sharpcap that was reported as 5-10' error in PHD Guiding Assistant. It seems to vary somewhat.
This note is more like a "heads-up" than an actual bug report. Polar Alignment is what drew me to Sharpcap, though :-/
James
error in polar alignment?
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If you have a problem or question, please check the FAQ to see if it already has an answer : https://www.sharpcap.co.uk/sharpcap-faqs
Please also read about Troubleshooting USB Issues before posting.
*** Please do not post license keys - please report any problems with licensing to 'admin' by private message ***
Please include the following details in any bug report:
* Version of SharpCap
* Camera and other hardware being user
* Operating system version
* Contents of the SharpCap log after the problem has occurred.
[If SharpCap crashes, please send the bug report when prompted instead of including the log]
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Re: error in polar alignment?
Hi James,
Just now and then I hear of someone who has this problem - so far if we have tracked down a cause it has always been some sort of physical movement (flexure) of the mount either during alignment or afterwards. Something as simple as a loose USB cable that pulls slightly on the guide camera can have this effect - see https://www.sharpcap.co.uk/sharpcap/fea ... leshooting for more hints. Other possibilities include settling of the mount if it is on a soft surface like a grass lawn.
One further trick to check on alignment in SharpCap - once aligned put the polar align tool back to the start and watch the position of the NCP cross as you rotate the mount - if your alignment is correct it should remain motionless during rotation.
cheers,
Robin
Just now and then I hear of someone who has this problem - so far if we have tracked down a cause it has always been some sort of physical movement (flexure) of the mount either during alignment or afterwards. Something as simple as a loose USB cable that pulls slightly on the guide camera can have this effect - see https://www.sharpcap.co.uk/sharpcap/fea ... leshooting for more hints. Other possibilities include settling of the mount if it is on a soft surface like a grass lawn.
One further trick to check on alignment in SharpCap - once aligned put the polar align tool back to the start and watch the position of the NCP cross as you rotate the mount - if your alignment is correct it should remain motionless during rotation.
cheers,
Robin
Re: error in polar alignment?
Robin,
That sounds very possible, for me at least. I'll check it out
Thank you for replying.
James
That sounds very possible, for me at least. I'll check it out
Thank you for replying.
James