Date   

locked Re: No stars on DLSR #Off-Topic

Patrick Maher
 

You need to check the website where you purchased the field flattener.  That is usually where you will find the specs for required backfocus.  Typically, however, this is 55mm give or take a little bit (it may require some adjustment to get the corners just right).  I don't think any field flattener comes with instructions today.  All info is online.  

As others have mentioned, you will probably also require another extension tube...   probably a 2" tube would do it...  in order to get focus.  

Have you tried to get focus without the flattener so you have a starting point?  That would be the easiest and most logical.  

Patrick
--
Explore Scientific iEXOS-100 and EXOS-2GT (non-PMC)
Explore Scientific ED 102mm Refractor


locked Re: No stars on DLSR #Off-Topic

Paul Meesters
 

On Sat, Nov 7, 2020 at 02:44 PM, Harry wrote:
I have to use an additional 2 inch extension tube plus the .8x focal reducer (looks similar to your field flattener), with my crop sensor DX5300, and focus no problem. I see on the ES website your scope comes with 2 extension tubes. Mine did also. I believe that is your issue.
I have 3 extender rings, but they don't fit anywhere in the setup.. they're too large in diameter :(


locked Re: No stars on DLSR #Off-Topic

Ian Morison
 

Hi Paul,
   I have a very similar setup with Sony a7 ii.   When in focus you should see stars in the live view at 2000 ISO so making it easy to align.  First having tested in the day as suggested go to something bright - I used Mars last night  - and used focus peaking.
All the best.

Cheers,

Ian

On Saturday, November 7, 2020, Paul Meesters <p.h.meesters@...> wrote:
Hi,
last night I finally got round to using my Explore Scientific refractor (FCD100 - 10207 - CF) for the first time, mounted on the Exos2.

I have a field-flattener attached, and a T2 adaptor for my Sony A7iii. Whatever I do with the focusing in-or-out, I never get any stars in the display of my camera. 
It's not for using wrong camerasettings. I used a 15 seconds shuttertime at 32000  ISO.. no stars at all (and no, I did not forget the lens cap)

I'm not sure what I need to do to get a picture.. Do I need more extender tubes ? It's already sticking out more then I like, since the T2 adapter and the field flattener are very big...



Any advise is appreciated :)

Greetz
Paul


locked Re: No stars on DLSR #Off-Topic

Wes Mcdonald
 

Paul if the focus is way off you won’t see a star in live view, maybe not with time exposure.  Do as suggested:  take your scope outside in daylight and get it focused using live view on a far away tree top or some such.   Mark your focus position.   Then you will be close at night.

Wes

--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


locked Re: No stars on DLSR #Off-Topic

Paul Meesters
 

On Sat, Nov 7, 2020 at 02:32 PM, Mick Whitaker wrote:
Hi Paul. Check what your flattener requires, mine is 55mm to camera sensor. 
I have no clue. The flattener came without any documentation, and there are no markings on the flattener anywhere. :(


locked Re: No stars on DLSR #Off-Topic

James
 

Based on the picture, I would say that you probably do need more extension tubes and you may also want to check the back focus requirement like Mick mentioned. I have a MC that I have to use an 8cm extension along with my other adapters. One other thing to check is what focal lengths your flattener works with. For example, my flattener will only work with scopes with a focal length of 500mm to 1000mm, so I can't use it with my MC as it's focal length is 1900mm. Lastly, just for focusing, set your camera to it's max shutter time (mine is 30 sec) and ISO to 400-1600.

Good luck and clear skies.


--
Mounts: Explore Scientific EXOS II GT, iEXOS-100, Celestron AVX
Scope: Explore Scientific AR102, AR152, FirstLight 152mm Mak-Cassegrain, SpaceCat 51
Guide Scope: Astromania 50mm Guidescope (190mm focal length)
Guide Camera: ZWO ASI120MM Mini Monochrome
Camera: Canon RP (IR modification)
Software: PHD2, ASCOM, and APT


locked Re: No stars on DLSR #Off-Topic

Harry
 

Paul, I forgot to mention on my ES 80, I have to use an additional 2 inch extension tube plus the .8x focal reducer (looks similar to your field flattener), with my crop sensor DX5300, and focus no problem. I see on the ES website your scope comes with 2 extension tubes. Mine did also. I believe that is your issue.
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Guide: ZWO 30mm Mini, ZWO ASI120MM-Mini
Software: ASIair Pro, iPad Pro, MacOS, Starry Sky Stacker, Affinity Photo, Lightroom,  SkySafari Plus
Cameras: Nikon D600, D5500
Misc: ES USB Power Bank, Rigel QuikFinder, 0.8x Focal Reducer
Filters:  Optolong L-Pro, L-eNhance






Re: Polar scope illuminator not working #EXOS2

Wes Mcdonald
 

Yes paul.  The polar scope switch assembly is also a battery holder.  It unscrews.

Wes

--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Polar scope illuminator not working #EXOS2

Paul Meesters
 

Hi,

Where is the polar scope illuminator getting it's power from ?
When I power on the PMC8, the illuminator does not light up when turned in the "On" position.
Is there a battery involved ? I never used the illuminator before.. How do I get it working ??



Thanks,
Paul


locked Re: No stars on DLSR #Off-Topic

Harry
 

Hello,
Have you used your set up during the day, focused on a distant object with a prominent point ( top of flagpole), and ensured you are in focus?
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Guide: ZWO 30mm Mini, ZWO ASI120MM-Mini
Software: ASIair Pro, iPad Pro, MacOS, Starry Sky Stacker, Affinity Photo, Lightroom,  SkySafari Plus
Cameras: Nikon D600, D5500
Misc: ES USB Power Bank, Rigel QuikFinder, 0.8x Focal Reducer
Filters:  Optolong L-Pro, L-eNhance






locked Re: No stars on DLSR #Off-Topic

 

Hi Paul. Check what your flattener requires, mine is 55mm to camera sensor. 


On 7 Nov 2020, at 13:20, Paul Meesters <p.h.meesters@...> wrote:

Hi,
last night I finally got round to using my Explore Scientific refractor (FCD100 - 10207 - CF) for the first time, mounted on the Exos2.

I have a field-flattener attached, and a T2 adaptor for my Sony A7iii. Whatever I do with the focusing in-or-out, I never get any stars in the display of my camera. 
It's not for using wrong camerasettings. I used a 15 seconds shuttertime at 32000  ISO.. no stars at all (and no, I did not forget the lens cap)

I'm not sure what I need to do to get a picture.. Do I need more extender tubes ? It's already sticking out more then I like, since the T2 adapter and the field flattener are very big...

<Camera_Connection.jpg>


Any advise is appreciated :)

Greetz
Paul

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


locked No stars on DLSR #Off-Topic

Paul Meesters
 

Hi,
last night I finally got round to using my Explore Scientific refractor (FCD100 - 10207 - CF) for the first time, mounted on the Exos2.

I have a field-flattener attached, and a T2 adaptor for my Sony A7iii. Whatever I do with the focusing in-or-out, I never get any stars in the display of my camera. 
It's not for using wrong camerasettings. I used a 15 seconds shuttertime at 32000  ISO.. no stars at all (and no, I did not forget the lens cap)

I'm not sure what I need to do to get a picture.. Do I need more extender tubes ? It's already sticking out more then I like, since the T2 adapter and the field flattener are very big...



Any advise is appreciated :)

Greetz
Paul


Re: New iexos 100 Dec Slop #iEXOS-100 #VIDEO

Jerry Hubbell - Explore Scientific VP Engineering
 

HI Don,

Thank you very much for you purchase and you patience in receiving it.  I am sorry you have this adjustment issue.  Here is a video that our Director of Quality Control made to show customers how to adjust the gears on the iEXOS 100. I hope this will help you to adjust your mount. If you have any other questions or comments please contact Customer Support at service@... or call +1 (866) 252-3811.

https://youtu.be/mLXE_BMKVAw

Thanks again!
--
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!


New iexos 100 Dec Slop #iEXOS-100 #VIDEO

Don <donsinger@...>
 

I just received a brand new iexos 100 mount after several months on order. After assembling it and having both the RA and DEC clutches engaged, I noticed that the Dec axis has a lot of slop. When I gently press against the counterweight bar, there is approximately 1/8" of very loose movement in both directions (total of 1/4" movement).

The only other mount I have had that had such a problem was an iOptron CEM-25p and I could never get it to guide acceptably, even after several trips back to iOptron. I purchased the iexos-100 for astrophotography with light gear (WO ZS-61).

I assume that the play in my new iexos-100 is not a 'feature' - is there any way to fix it or does the mount have to go back to the dealer for an exchange. I would rather fix it myself than send it back and have to wait another few months for a new one.

Input appreciated!

Thanks,
Don/KF7DS

 


Re: EXOS-2 PMC-8 Autoguiding noobie question. #pmc-eight

Kopytko
 

Finally I went with ZWO 60mm f/4.6 Guiding Scope and ZWO ASI290 Mini. Everything went smooth with INDI/Kstar/PHD2 on OpenSUSE Tumbleweed Linux. I even managed to get some first photos!
My current telescope is Bresser NT-203s. As you can see on the photos, coma corrector is still missing. And I still need to do some work with mounting everything properly ;)
... and autofocuser is obviously needed ;)



Re: EXOS-2 PMC-8 Autoguiding noobie question. #pmc-eight

Ming
 

ToupTek specs show they are supported by INDI, so the usual INDI/Kstar/PHD2 combo on Linux should work fine.

But honestly choosing this Bresser 90/500 for guiding is a bit unusual. If your imaging scope is between 80 and 120mm, a 50-60mm guidescope along with ASI120MM or ASI290MM would have been enough. This way you avoid putting unnecessary load onto the mount. If you plan to use long focal length scopes (e.g. SCT), an OAG will not only be more accurate but also less load compared to the Bresser.
--
Scopes: APM-LZOS 115/805, Skywatcher 200P Dob & APM 107/700 (grab'n'go)
Mount: Skywatcher HEQ5 Pro w/ Rowan belt mod + ADM saddle & ES iEXOS-100 PMC8 w/ Fine AZ adjuster + ST2 tripod

Eyepieces: ES68 24mm, ES82 8.8mm, 14mm; TV Delos 4.5mm, Panoptic 35mm & 2.5x Powermate; BST 3.2mm, 5mm, 12mm & 25mm
Imaging: Canon EOS 600Da, Canon 135mm f/2L + 1.4x extender, TS 2" 0.79x FR, IDAS NB1 filter, Altair Starwave 50mm + ZWO ASI120MM Mini (guiding)

Software: BYE, PHD2, Astrotortilla, Stellarium, DSS, PIPP, AutoStakkert2, PS CC

Binoculars: Vixen Ascot ZR 8x42WP


FW: [Special] [ascomhelp] Important Update for People Using Platform 6.

Jerry Hubbell - Explore Scientific VP Engineering
 

FYI – New ASCOM Platform Service Pack. This contains fixes for the Device Hub application.

 

See message below from ASCOM platform developer Peter.

 

 

 

Jerry Hubbell

Vice President Engineering

ExploreScientificUSA.com

 

Explore Scientific, LLC

1010 South 48th Street

Springdale, AR 72762 USA

 

Office +1(866) 252-3811

Fax       +1(479) 717-2898

 

Author: Scientific Astrophotography (Springer 2013)

               Remote Observatories for Amateur Astronomers (Springer 2015)

 

Brands: Explore Scientific | Bresser | Explore One 
Official Licensee: National Geographic | Discovery

Publications:  Sky's Up Magazine

Affiliations: UNESCO Space Education Program | AstronomyOutreach network

 

This transmission is intended by the sender and proper recipient(s) to be confidential, intended only for the proper recipient(s) and may contain information that is privileged, or exempt from disclosure under applicable law.  If you are not the intended recipient(s), you are notified that the dissemination, distribution or copying of this message is strictly prohibited.  If you receive this message in error, or are not the proper recipient(s), please notify the sender at either the e-mail address or telephone number above and delete this e-mail from your computer.  Thank you.

 

 

 

From: Help@ASCOMTalk.groups.io <Help@ASCOMTalk.groups.io> On Behalf Of Peter Simpson via groups.io
Sent: Thursday, November 5, 2020 10:08
To: Help@ASCOMTalk.groups.io
Subject: [Special] [ascomhelp] Important Update for People Using Platform 6.

 

Hi all,

We have just posted a release candidate for ASCOM Platform 6.5 Service Pack 1: https://github.com/ASCOMInitiative/ASCOMPlatform/releases. This addresses a serious bug in the Transform component that was introduced in the initial Platform 6.5 release and which is known to have manifested in the Astro-Physics driver and in the AstroTortilla application. Other drivers and applications may also have been impacted.

If you have installed the initial Platform 6.5 release, we strongly advise you to update to the service pack 1 release candidate.

If you have already installed an early beta version of the service pack 1 release, we also advise you to update to the release candidate because it includes further fixes and supports clean reversion to Platform 6.4 SP1 if required.

In addition to fixing the Transform bug, service pack 1 includes several Device Hub and installer fixes. The Platform releases link above contains a full list of changes.

The Platform and Developer Components installers have been submitted to VirusTotal and are passed by all major anti-virus scanners. SHA1 and SHA256 checksums are listed immediately above the installer executables in the releases link above.

Best wishes, Peter


--
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!


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

Ian Morison
 

Well done Harry -  a lovely image!
Cheers,

Ian

On Thu, Nov 5, 2020 at 3:57 PM Harry via groups.io <flykai1=icloud.com@groups.io> wrote:
Bill, very very nice!
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Guide: ZWO 30mm Mini, ZWO ASI120MM-Mini
Software: ASIair Pro, iPad Pro, MacOS, Starry Sky Stacker, Affinity Photo, Lightroom,  SkySafari Plus
Cameras: Nikon D600, D5500
Misc: ES USB Power Bank, Rigel QuikFinder, 0.8x Focal Reducer
Filters:  Optolong L-Pro, L-eNhance






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

Harry
 

Bill, very very nice!
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Guide: ZWO 30mm Mini, ZWO ASI120MM-Mini
Software: ASIair Pro, iPad Pro, MacOS, Starry Sky Stacker, Affinity Photo, Lightroom,  SkySafari Plus
Cameras: Nikon D600, D5500
Misc: ES USB Power Bank, Rigel QuikFinder, 0.8x Focal Reducer
Filters:  Optolong L-Pro, L-eNhance






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

bill rowe
 

Here's my M31.  30X75 seconds at  ISO 800 through my William Optics Z61 (360mm/f5.9) guided by PHD2 with a QHY monochrome camera and mini guide scope. With sharpcap for [olar aligning and astrotortilla for plate solving the setup and aiming were easy.  This was done from my suburban back yard with a fairly clear sky.


Post-processing was done with Siril scripts which is by far the easiest option i've found.

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