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Still a great start Graham despite the issues, If you are focusing manually the take advantage of the diffraction spikes on a bright star... you can use them rather like a Bahtinov mask...the spikes will appear double when out of focus.....it might make your life a little easier when focusing.

What camera were you using Cmos or CCD?

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Thanks Peter

Focus issue was the difference between the broad band and narrow band filters, 

I focused using the HA filter, next time I will use the Lum filter instead of he HA.

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1 hour ago, Graham said:

Thanks Peter

Focus issue was the difference between the broad band and narrow band filters, 

I focused using the HA filter, next time I will use the Lum filter instead of he HA.

Ah yes....that explains a lot Graham

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27 minutes ago, Bottletopburly said:

Could you fit an autofocuser to the RC graham 

 

I have an electronic focuser fitted David.

Problem is with the OAG, if I change focus between filters I will defocus my guide star and loose guiding.

I was just going to do Narrow band last night but had a change of mind mid session.

My LRGB filters are parfocal so not an issue..

I might look into fitting an ST 80 as a guide scope , we will see .

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12 hours ago, Peter Shah said:

Still a great start Graham despite the issues, If you are focusing manually the take advantage of the diffraction spikes on a bright star... you can use them rather like a Bahtinov mask...the spikes will appear double when out of focus.....it might make your life a little easier when focusing.

What camera were you using Cmos or CCD?

 

Sorry Peter seem to have missed the second part of your question.

I am using the QSI 683 with the built in OAG

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2 hours ago, Graham said:

 

Sorry Peter seem to have missed the second part of your question.

I am using the QSI 683 with the built in OAG

I was just wondering if you were using a Cmos......

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2 hours ago, Graham said:

Not at all Phil.

It is not bad as a starting point with a new scope.

Hopefully I can get the focus better next time.

 

I think the truth is that we are all learning and experimenting.

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Just now, Graham said:

We are indeed Phil I am always pushing the boundaries to learn more.

 

Without trumpet-blowing I made great strides last year in what can be done with a 300mm lens. I think all of us here are getting better photos, even when we haven't upgraded our gear.

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