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Re: Triplet Lens -vs- Doublet Lens
George, I was thinking the same thing. The image scale changes very slightly.
Stuart
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Stuart Heggie
http://www.stuartheggie.com/featured.html
George, I was thinking the same thing. The image scale changes very slightly.
Stuart
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Stuart Heggie
http://www.stuartheggie.com/featured.html
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By
Stuart Heggie <stuart.j.heggie@...>
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#62716
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Re: Triplet Lens -vs- Doublet Lens
Remember…since you are refocusing for each image the image scale is changing.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-282-1513
Email: george@...
Remember…since you are refocusing for each image the image scale is changing.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-282-1513
Email: george@...
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By
George
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#62715
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Re: Triplet Lens -vs- Doublet Lens
I don’t mean to butt-in, but I think Charlie is on to something. Each NB image will have been focused independently. There would be no chromatic aberration because each set of images will be in
I don’t mean to butt-in, but I think Charlie is on to something. Each NB image will have been focused independently. There would be no chromatic aberration because each set of images will be in
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By
George OBrien
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#62714
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Re: Triplet Lens -vs- Doublet Lens
I would think if you plan to combine the NB data later into a false colour image you’ll have the same problem. If your goal is pure B&W then I’d guess you’d be fine.
Stuart
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Stuart
I would think if you plan to combine the NB data later into a false colour image you’ll have the same problem. If your goal is pure B&W then I’d guess you’d be fine.
Stuart
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Stuart
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By
Stuart Heggie <stuart.j.heggie@...>
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#62713
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Triplet Lens -vs- Doublet Lens
As we know, one of the benefits of a triplet lens is that it brings the three primary colors to a single focus while a doublet lens can only bring two of the primary colors to a common focus. The
As we know, one of the benefits of a triplet lens is that it brings the three primary colors to a single focus while a doublet lens can only bring two of the primary colors to a common focus. The
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By
acf900gto@...
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#62712
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Re: AP1100GTO + Pole Master
You will need to change the 2 studs which you would screw a cable connector
to. Buttonhead allens will solve the problem. Richard
You will need to change the 2 studs which you would screw a cable connector
to. Buttonhead allens will solve the problem. Richard
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By
richard payne
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#62711
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Re: Saving SYNC/Rcal information
Hello Ray,
I use this topic to ask questions about pointing model of APPM :
1/ When I use my 10micron mount or when I had a Gemini system on Titan Losmandy, after the first 3 stars, I can see pointing
Hello Ray,
I use this topic to ask questions about pointing model of APPM :
1/ When I use my 10micron mount or when I had a Gemini system on Titan Losmandy, after the first 3 stars, I can see pointing
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By
Stephane Charbonnel
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#62710
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Re: AP1100GTO + Pole Master
Hi Charlie,
I have a polemaster and I put up and pull down my telescope 1100 AE every night. I find the polemaster awesome. With the encoder connector installed I never even tried to fit it there. I
Hi Charlie,
I have a polemaster and I put up and pull down my telescope 1100 AE every night. I find the polemaster awesome. With the encoder connector installed I never even tried to fit it there. I
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By
Matthew Hughes
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#62709
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AP1100GTO + Pole Master
A year ago a buddy in my dark sky site operation bought a Pole Master and matching adapter for his AP900GTO mount. He was impressed with its ability to improve his polar alignment and he asked me if
A year ago a buddy in my dark sky site operation bought a Pole Master and matching adapter for his AP900GTO mount. He was impressed with its ability to improve his polar alignment and he asked me if
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By
acf900gto@...
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#62708
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Re: Saving SYNC/Rcal information
Hi Ray,
Thank you very much for helping me with this...
Eduardo.
Em qui, 16 de ago de 2018 às 10:39, 'Ray Gralak (Groups)' groups3@... [ap-gto] <ap-gto@...> escreveu:
Hi Ray,
Thank you very much for helping me with this...
Eduardo.
Em qui, 16 de ago de 2018 às 10:39, 'Ray Gralak (Groups)' groups3@... [ap-gto] <ap-gto@...> escreveu:
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By
Eduardo Oliveira
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#62707
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Re: Saving SYNC/Rcal information
Hi Joe,
The next release of APCC, which has been completed and is in internal testing at A-P, can use any ASCOM ObservingConditions driver.
That said, APCC has always had the ability to calculate
Hi Joe,
The next release of APCC, which has been completed and is in internal testing at A-P, can use any ASCOM ObservingConditions driver.
That said, APCC has always had the ability to calculate
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By
Ray Gralak
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#62706
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Re: Saving SYNC/Rcal information
Ray,
.... “APCC can also monitor temperature, humidity, and barometric pressureto calculate a better estimate of refraction“
Which version of APCC PRO added this feature, and whichT & H
Ray,
.... “APCC can also monitor temperature, humidity, and barometric pressureto calculate a better estimate of refraction“
Which version of APCC PRO added this feature, and whichT & H
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By
Joe Zeglinski
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#62705
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Re: Saving SYNC/Rcal information
Hi Eduardo,
Accuracy is improved only in the area where the recal/sync was performed.
APCC Standard does not include a pointing model, so an RCAL/SYNC only would only potentially improve pointing
Hi Eduardo,
Accuracy is improved only in the area where the recal/sync was performed.
APCC Standard does not include a pointing model, so an RCAL/SYNC only would only potentially improve pointing
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By
Ray Gralak
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#62704
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Re: Mach 1 Milestone – GearBox
Agreed.
And I must also add that polar alignment is a delight with the smooth and precise knobs.
My old EQ6 was clunky and the two axes seemed to interfere with each other a bit too. This is buttery
Agreed.
And I must also add that polar alignment is a delight with the smooth and precise knobs.
My old EQ6 was clunky and the two axes seemed to interfere with each other a bit too. This is buttery
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By
Paul
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#62702
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Re: [ap-ug] Re: Re: Astro-Physics now accepting 1100GTO orders again
It doesn’t look like a political statement to me. It simply looks like a statement of fact. I don’t infer anything about your political preferences from anything below.
For my part, I have
It doesn’t look like a political statement to me. It simply looks like a statement of fact. I don’t infer anything about your political preferences from anything below.
For my part, I have
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By
W Hilmo
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#62701
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Re: Articles on periodic error and PEC
Thanks George. I should have thought of that at the get go.
Thanks George. I should have thought of that at the get go.
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By
Bruce Donzanti
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#62703
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Re: Articles on periodic error and PEC
Thanks much for the link and tips. I realize nothing is as good as doing it and I will get my hands dirty and have fun with it ;)). I'll download the program and start playing with it.
Thanks much for the link and tips. I realize nothing is as good as doing it and I will get my hands dirty and have fun with it ;)). I'll download the program and start playing with it.
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By
Bruce Donzanti
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#62700
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Re: Mach 1 Milestone – GearBox
I agree with you Darrell, it is a brilliant system. Makes precise balancing a piece of cake!
Just remember to hold on to your counterweight shaft when disengaging the worm in case you are way out of
I agree with you Darrell, it is a brilliant system. Makes precise balancing a piece of cake!
Just remember to hold on to your counterweight shaft when disengaging the worm in case you are way out of
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By
Keith Olsen
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#62698
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Saving SYNC/Rcal information
Hi everyone,
I am sorry if this is answered somewhere else, but I could not find using Yahoo search engine. I am using APCC (standard version) and AP V2 Ascom driver with my Mach1 GTO CP4 mount. I
Hi everyone,
I am sorry if this is answered somewhere else, but I could not find using Yahoo search engine. I am using APCC (standard version) and AP V2 Ascom driver with my Mach1 GTO CP4 mount. I
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By
Eduardo Oliveira
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#62699
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Re: Articles on periodic error and PEC
Check the Tech Support page of our website.
http://www.astro-physics.com/tech_support/mounts/Making_PE_Curve.pdf
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone:
Check the Tech Support page of our website.
http://www.astro-physics.com/tech_support/mounts/Making_PE_Curve.pdf
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone:
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By
George
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#62696
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