Date   

Re: EXOS2 PMC-Eight Polar Alignment issue.

 

Yes, I was aligning Polaris with the little circle then adjusting the mount to the home position, but this was wrong. I needed to align Polaris on the crosshair then rotate the RA to point at the inverted Polaris clock in the app, then centre Polaris in the circle and move the RA to the home position. I'm new to all this so still learning. 
--
Bill Kinnair
West Midlands UK
MountsEXOS-2 PMC-8 GOTO
Scopes: Skywatcher 200PDS + Skywatcher Skyliner 200p
CamerasZWO ASI120MC + Canon EOS 1300D
Software: ExplorerStars, Backyard ESO, ASIStudio, AutoStakkert, PIPP, RegiStax 6, PolarAlignment PRO


Re: Slew Errors #EXOS2 #ExploreStars

Lloyd Simons
 

Bob, 

If you plate solve and sync at the ncp you can confuse the mount. I think it can break the pointing model. Syncs at the ncp routinely give issues. By omitting this solve and sync you should be fine.
1. Polar align.
2. Turn on mount and connect to software.
3. Slew to Target.
4. Plate solve and sync.
This works well for me.

Looks like we are going to have a couple clear nights here in Michigan for you to try it out. Good luck.


--
Lloyd Simons
Mattawan, MI
Telescopes: Astrotech AT72ED II, Orion 8" Dobsonian, Tectron 15" Dobsonian, Celestron Super Polaris C8
Imaging Camera: Canon T3i
Guide Camera: QHY5L-IIM on a 60mm F4 Guidescope
Mounts: iExos-100 PMC-8, Vixen Super Polaris
Mount Control: KODLIX gn41 mini PC, Explorestars on a Lenovo Tab 2 A10-70F Android 6.0
Software: N.I.N.A. for imaging, PHD2 for guiding, Sharpcap for PA, Cartes du Ciel, PixInsight


#EXOS2 #pmc-eight Unable to get my new mount to work #EXOS2 #pmc-eight

Joe Rigby
 

Hi everyone, I just got a new EXOS-2 PMC-Eight mount. When I switch it on, 
1. I hear a humming sound from the mount, but don't see any movement
2. My ExploreStars app just says "Please Wait"

Could someone guide me on what to do; I've watched a few videos, read and re-read the manual, reset my wi-fi, and re-balanced my scope multiple times, but nothing helped :(

Any help on this would be highly appreciated! 


Re: Slew Errors #EXOS2 #ExploreStars

Tyler Bowman - Explore Scientific Customer Service
 

Lets simplify things and do the basics, manually do a polar alignment or use sharpcap and get a good polar alignment. 
then slew to a object and lets see how far off you are. 

Can i ask what kind programs are you running?

1. Power supply voltage is => 12Vdc
2. Longitude, Latitude, Time, and Time Zone are correct for your location
3. The mount is placed in the Home position according to the index pointers on each axis.
4. The mount is balanced (slight imbalances are okay)
5. The gear mesh is good based on no noticeable excessive motor/drive noise indicative of motor skipping steps.


From: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io> on behalf of Bob via groups.io <drrtownsend@...>
Sent: Thursday, September 3, 2020 2:28 PM
To: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io>
Subject: Re: [ESPMC-Eight] Slew Errors #EXOS2 #ExploreStars
 
Well Tyler here is the problem I have.  Ok, let's say the error is with plate solving at the NCP.  I still slew 'somewhere' and plate solve there, so now the scope should know where it is.  Given that it now knows where it is it should be a simple matter to go where it is told.  Yet it continues to go somewhere else.  I plate solve there, so now the scope again knows where it is pointing, and tell it to go somewhere to a known target, yet it moves in a completely different direction.  Can I reset the mount?  Maybe it starts with bad data and no matter what I tell it to do it is still lost?

--
Bob T
Mt. Pleasant, MI

EON 110
Meade LX 10
Exos2-PMC


Re: EXOS2 PMC-Eight Polar Alignment issue.

 

Did you use the inverted view?


On 3 Sep 2020, at 20:50, Bill Kinnair via groups.io <kinnawill@...> wrote:

I wrote a post above explaining what I done but I think the main issue was not understanding the Polar scope diagram, I think I was aligning incorrectly.
--
Bill Kinnair
West Midlands UK
MountsEXOS-2 PMC-8 GOTO
Scopes: Skywatcher 200PDS + Skywatcher Skyliner 200p
CamerasZWO ASI120MC + Canon EOS 1300D
Software: ExplorerStars, Backyard ESO, ASIStudio, AutoStakkert, PIPP, RegiStax 6, PolarAlignment PRO

--
Michael Whitaker
Wakefield, UK. 
MOUNTS. Exos-2 PMC Eight..
SCOPE: RVO Horizon 72ed. 
CAMERA: Not Applicable. 
SOFTWARE: Just iPad at moment. 


Re: EXOS2 PMC-Eight Polar Alignment issue.

 

I wrote a post above explaining what I done but I think the main issue was not understanding the Polar scope diagram, I think I was aligning incorrectly.
--
Bill Kinnair
West Midlands UK
MountsEXOS-2 PMC-8 GOTO
Scopes: Skywatcher 200PDS + Skywatcher Skyliner 200p
CamerasZWO ASI120MC + Canon EOS 1300D
Software: ExplorerStars, Backyard ESO, ASIStudio, AutoStakkert, PIPP, RegiStax 6, PolarAlignment PRO


Re: EXOS2 PMC-Eight Polar Alignment issue.

 

What was the problem Bill?


On 3 Sep 2020, at 20:33, Bill Kinnair via groups.io <kinnawill@...> wrote:

Hi Brian. 
No not using a red dot finder just using the finder    scope that come with the telescope, I think I've figured it out now. I've give it a good testing and seems to be pointing in the right direction. 
--
Bill Kinnair
West Midlands UK
MountsEXOS-2 PMC-8 GOTO
Scopes: Skywatcher 200PDS + Skywatcher Skyliner 200p
CamerasZWO ASI120MC + Canon EOS 1300D
Software: ExplorerStars, Backyard ESO, ASIStudio, AutoStakkert, PIPP, RegiStax 6, PolarAlignment PRO

--
Michael Whitaker
Wakefield, UK. 
MOUNTS. Exos-2 PMC Eight..
SCOPE: RVO Horizon 72ed. 
CAMERA: Not Applicable. 
SOFTWARE: Just iPad at moment. 


Re: EXOS2 PMC-Eight Polar Alignment issue.

 

Hi Brian. 
No not using a red dot finder just using the finder    scope that come with the telescope, I think I've figured it out now. I've give it a good testing and seems to be pointing in the right direction. 
--
Bill Kinnair
West Midlands UK
MountsEXOS-2 PMC-8 GOTO
Scopes: Skywatcher 200PDS + Skywatcher Skyliner 200p
CamerasZWO ASI120MC + Canon EOS 1300D
Software: ExplorerStars, Backyard ESO, ASIStudio, AutoStakkert, PIPP, RegiStax 6, PolarAlignment PRO


Re: Slew Errors #EXOS2 #ExploreStars

Bob
 

Well Tyler here is the problem I have.  Ok, let's say the error is with plate solving at the NCP.  I still slew 'somewhere' and plate solve there, so now the scope should know where it is.  Given that it now knows where it is it should be a simple matter to go where it is told.  Yet it continues to go somewhere else.  I plate solve there, so now the scope again knows where it is pointing, and tell it to go somewhere to a known target, yet it moves in a completely different direction.  Can I reset the mount?  Maybe it starts with bad data and no matter what I tell it to do it is still lost?

--
Bob T
Mt. Pleasant, MI

EON 110
Meade LX 10
Exos2-PMC


Re: Slew Errors #EXOS2 #ExploreStars

Tyler Bowman - Explore Scientific Customer Service
 

once i polar align and do a two or three star alignment i sync it to the mount and it should go to the said object that i choose and then i plate solve to make sure that's its where its supposed to be.

Then i use what ever program i use to recenter said object and away i go if that makes sense.


From: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io> on behalf of Bob via groups.io <drrtownsend@...>
Sent: Thursday, September 3, 2020 2:13 PM
To: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io>
Subject: Re: [ESPMC-Eight] Slew Errors #EXOS2 #ExploreStars
 

[Edited Message Follows]

That is interesting, so you suggest rather than plate solving at the park position, I should go to M31 and plate solve there.  But why does the mount swing to the left instead of the right, would the error be that great?

As it is raining now, I'll set it up in the house.  I'll put it in the park position and tell it to slew to M31 and see if it goes the right way.
--
Bob T
Mt. Pleasant, MI

EON 110
Meade LX 10
Exos2-PMC


Re: Slew Errors #EXOS2 #ExploreStars

Bob
 

yes, I am pointing at the NCP, I use sharpcap to be sure of that within one min of angle.
--
Bob T
Mt. Pleasant, MI

EON 110
Meade LX 10
Exos2-PMC


Re: Slew Errors #EXOS2 #ExploreStars

Bob
 
Edited

That is interesting, so you suggest rather than plate solving at the park position, I should go to M31 and plate solve there.  But why does the mount swing to the left instead of the right, would the error be that great?

As it is raining now, I'll set it up in the house.  I'll put it in the park position and tell it to slew to M31 and see if it goes the right way.
--
Bob T
Mt. Pleasant, MI

EON 110
Meade LX 10
Exos2-PMC


Re: EXOS2 PMC-Eight Polar Alignment issue.

brian skinner
 

Hi Bill, just another idea, are you using a red dot finder finder scope to verify the mounts pointing accuracy? If not and your main scope has a long focal length you may find its small field of view is the problem as your target may be outside the field of view but not actually far off.......
--
Brian Skinner
iEXOS100
Canon 1300d dslr
Various lenses
ES Polar scope
Sequator image stacker
PIXR image editor


Re: Astrophotography Done with the iEXOS-100, EXOS 2, and G11 Post your Pictures and Details! Lets Show What These Mounts Can Do. #G11 #astrophotography #iEXOS-100 #EXOS2

Jeff Snell
 

Hi Mario,
Although I don't own a filter wheel (yet) or a new camera (yet), you are on point.  You can also have separate Hydrogen, Sulfur, and Oxygen filters as well in the wheel.  Many options/models to choose from...I've looked at 5 position/7 position models.  Some wheels are automated via various programs like APT so all you do is program it and let it go.  Others are manual.  I'm sure many more of the folks on the forum have the experience with these.

I've even seen bundled ZWO/Filter wheel combos with filters.
  
Jeff

PMC-Eight w/Explore Stars
ES ED80mm APO
Celestron 8" Edge HD
Canon Ti-5 w/ Spencer Camera Astro-mod


On Thu, Sep 3, 2020 at 11:30 AM Mario <mario1546@...> wrote:
Awesome. Thank you both.

If the resulting images from a monochrome CCD are, well, monochrome....how is the colour added to the final image?
Practically, do you just use a filter wheel and take separate Blue, Green and Red lights which are then stacked together later?

I'm assuming this is correct as I've read references to this process.

Regards,

Mario

On Thu, Sep 3, 2020 at 1:13 PM Jerry Hubbell - Explore Scientific VP Engineering <jrh@...> wrote:
On Thu, Sep 3, 2020 at 01:04 PM, Mario wrote:
But is a bigger number better?
Should we be gunning for the biggest number we can afford?
Hi Mario,

Yes!
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


--
Regards,

Mario
Streetsville, Ontario

Mounts: iExos 100, Skyguider Pro
Scopes/Lenses: Main/Orion 80mm, DSLR/Tamron 18-400mm lens, guide/ZWO-340A
Computer: ASIAir
Cameras: Canon T2i DSLR, ZWO120MM (guide)
Utility Software: iPolar (for Skyguider polar alignment), iCap, Explorestars, Canon EOS Utility
Image Processing Software: Photoshop


locked Re: Help wIth ASIAir Pro setup on PMC8. #EXOS2

Henry Staub
 

Alberto I want you to know I have an EXOS2, 


locked Re: Help wIth ASIAir Pro setup on PMC8. #EXOS2

Henry Staub
 

Thanks.  Are you referring to the PMC8 controller box?  This is the DB9 connection.  The other end (USB2) is plugged intp the ASIAir Pro. The cable is an FTDI cable and and I have read that you need to flip the pin on the DB9??  before I do that I want to check out what I am looking at on the ASIAir software screen because there are several options.  What does the Mount screen read on your setup?  Thanks


Re: Slew Errors #EXOS2 #ExploreStars

Tyler Bowman - Explore Scientific Customer Service
 

So one thing i would make sure is the time zone is correct to your current time slot that you are currently in and that means "DAYLIGHT SAVINGS TIME".

Also making sure the latitude is at 44 degrees. 

If you could also make sure that you are pointing at Polaris, some beginners make the mistake of not being on polaris. 

Please don't hesitant to reach out with any more concerns.


Re: Slew Errors #EXOS2 #ExploreStars

Lloyd Simons
 

Bob,

Can you clarify where you are platesolving? Is at at the North Celestial Pole? If so that can confuse the mount. After polar alignment try slewing to a target (ie M31). If your alignment is decent it should get close. Then platesolve and sync.
--
Lloyd Simons
Mattawan, MI
Telescopes: Astrotech AT72ED II, Orion 8" Dobsonian, Tectron 15" Dobsonian, Celestron Super Polaris C8
Imaging Camera: Canon T3i
Guide Camera: QHY5L-IIM on a 60mm F4 Guidescope
Mounts: iExos-100 PMC-8, Vixen Super Polaris
Mount Control: KODLIX gn41 mini PC, Explorestars on a Lenovo Tab 2 A10-70F Android 6.0
Software: N.I.N.A. for imaging, PHD2 for guiding, Sharpcap for PA, Cartes du Ciel, PixInsight


Slew Errors #EXOS2 #ExploreStars

Bob
 

1. I polar align the scope with the mount off using sharpcap.  I settle for 'Good' alignment (1 arc min or less) because I don't want to spend the night getting perfection.
2. I then close sharpcap, open settings to find out what serial port is being used (Com Port) after powering up the mount.
3. I go to the ascom control panel, select the exos2 mount (it defaults to G11) and connect using the proper com port.
4. Then I test the connection by trying to slew the mount with the ascom control.
5. Now it is time to hook up APT connecting to the mount and the guide camera.
6. I test the camera and plate solve the result, making sure to hit sync both on the plate solve and in the mount control on APT.
7. I see if the point location for the solution and photo outline match in stellarium.
 
We should be set now to observe.  I ask the mount to slew to M31 (as I am pointing at polaris, it should swing the telescope to the right).
The mount swings the telescope to the left and down.
I direct the mount to park, unpark it once it gets there (the arrows line up on the mount RA/Dec Axis) and plate solve again.
I repeat the sync process and tell the scope to slew to M31.  
It turns left and down again, to the same spot.
 
Then I spend the next few hours restarting the computer, rechecking everything, looking at my new refractor and wishing the damn mount would properly point.  Finally at 3am I tear it all down and put it away.  This has been going on for weeks.  I've considered just putting away the exos2, but I have 700 bucks invested and I want it to perform as expected, ie WORK.
 
Before you ask, the time and location are properly set.
 
Do you have a suggestion short of sending it back?
 
Bob
 
 
 
--
Bob T
Mt. Pleasant, MI

EON 110
Meade LX 10
Exos2-PMC


Re: Astrophotography Done with the iEXOS-100, EXOS 2, and G11 Post your Pictures and Details! Lets Show What These Mounts Can Do. #G11 #astrophotography #iEXOS-100 #EXOS2

Mario
 

Awesome. Thank you both.

If the resulting images from a monochrome CCD are, well, monochrome....how is the colour added to the final image?
Practically, do you just use a filter wheel and take separate Blue, Green and Red lights which are then stacked together later?

I'm assuming this is correct as I've read references to this process.

Regards,

Mario

On Thu, Sep 3, 2020 at 1:13 PM Jerry Hubbell - Explore Scientific VP Engineering <jrh@...> wrote:
On Thu, Sep 3, 2020 at 01:04 PM, Mario wrote:
But is a bigger number better?
Should we be gunning for the biggest number we can afford?
Hi Mario,

Yes!
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


--
Regards,

Mario
Streetsville, Ontario

Mounts: iExos 100, Skyguider Pro
Scopes/Lenses: Main/Orion 80mm, DSLR/Tamron 18-400mm lens, guide/ZWO-340A
Computer: ASIAir
Cameras: Canon T2i DSLR, ZWO120MM (guide)
Utility Software: iPolar (for Skyguider polar alignment), iCap, Explorestars, Canon EOS Utility
Image Processing Software: Photoshop