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Thread: Help With Exos-2gt

  1. #21
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    Default Re: Help With Exos-2gt



    I replaced the grub screws that are used to center the polar scope reticle with thumb screws. The size that hold an eye piece in place fit. This enable the reticle to be centered rapidly as you can now adjust two at the same time.

    The battery in the hand box should be changed on an annual basis.

    Once I had centered the polar scope reticle and put polaris on the line above the suggested circle which is the position used a few years ago. Placed the tripod lined up with true north, which i achieve by placing the front leg on a spot. Placing a straight stick against the leg and with a compass pointing to true North. I then have a piece of cord the same with as the rear pair of legs with a knot tied exactly in the centre of the cord. Hold the cord at the bottom of both the rear two legs and centre the knot over the stick and the tripod is facing true North. The using the bolts to place Polaris in your chosen position. Then a single star alignment. Deneb or some such star. I find the hand box is only consistent if it is plugged into the middle RJ45 socket. It works in the other positions but I find that it is not consistent in its actions. Clear skies.
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    Peter.

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  2. #22
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    Default Re: Help With Exos-2gt

    I replaced the grub screws that are used to center the polar scope reticle with thumb screws. The size that hold an eye piece in place fit. This enable the reticle to be centered rapidly as you can now adjust two at the same time.

    The battery in the hand box should be changed on an annual basis.

    Once I had centered the polar scope reticle and put polaris on the line above the suggested circle which is the position used a few years ago. Placed the tripod lined up with true north, which i achieve by placing the front leg on a spot. Placing a straight stick against the leg and with a compass pointing to true North. I then have a piece of cord the same with as the rear pair of legs with a knot tied exactly in the centre of the cord. Hold the cord at the bottom of both the rear two legs and centre the knot over the stick and the tripod is facing true North. The using the bolts to place Polaris in your chosen position. Then a single star alignment. Deneb or some such star. I find the hand box is only consistent if it is plugged into the middle RJ45 socket. It works in the other positions but I find that it is not consistent in its actions. Clear skies.
    certx likes this.
    Peter.

    Scopes: Bresser AR-127S 635mm. Celestron Travel Scope 70. Mount: Bresser EXOS - 2 modified to belt drive and AstroEQ mount controller.
    Cameras: Un modded Canon 450D.
    Bino's: Nikon Aculon A211. 16x50 4.2 degs.

  3. #23
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    Default Re: Help With Exos-2gt

    Following this thread. I've looked at that mount a few times recently and now am wondering about its quality and dependability.
    Jim
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  4. #24
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    Default Re: Help With Exos-2gt

    The tripod is rock steady. it is the Goto system that is the problem. It has taken over a year for me to sort mine out. Help from Bresser is at the best questionable. Every time that I wrote to them i got conflicting information. Now that it is sorted it is fine. But will not count my chicken until all the eggs are hatched.
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    Peter.

    Scopes: Bresser AR-127S 635mm. Celestron Travel Scope 70. Mount: Bresser EXOS - 2 modified to belt drive and AstroEQ mount controller.
    Cameras: Un modded Canon 450D.
    Bino's: Nikon Aculon A211. 16x50 4.2 degs.

  5. #25
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    Default Re: Help With Exos-2gt

    WELL I'LL BE A SON OF A GUN!!!! Polar aligned. One star align on Rigel. Slew to Venus and off by about 40 minutes. Target Sync'd to Venus. Slew to M42. Missed. One star aligned again on Rigel, starting with 25mm, then center in 17mm, then center in 10mm. Slew to M42 without changing eyepiece. Stops with M42 not centered BUT in the field of view of a 10mm eyepiece on a 1200mm fl scope. Sone of a gun!
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  6. #26
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    Default Re: Help With Exos-2gt

    Quote Originally Posted by MarkMittlesteadt View Post
    Have you tried a one star alignment? I have read far too many complaints that the software in the hand controller does not do two or three star alignments very well and it ends up throwing everything off, yet many of those same people claim success with a one star alignment. Sadly, without any means to connect to a computer there is no way to "update" the controller either, if they were to come out with a fix.
    There ya have it. See previous comment right above this one. The goto works GREAT with polar align and a one star alignment. smh. Wonder about 2 star.

  7. #27
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    Default Re: Help With Exos-2gt

    Don't use planets for alignment Their positions vary too much. Stick with bright stars or M objects.

    I've done a 2 star, but find after aligning to NCP as close as possible, centering the first star, the second star is pretty much in the center ring of the Telrad and very close to center in the eyepiece.

    To precisely center the 1st star without a centering eyepiece, just de-focus the star until it takes up almost the entire field of view. Easy to center that way.

    Scott
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  8. #28
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    Default Re: Help With Exos-2gt

    Quote Originally Posted by certx View Post
    I ordered this mount from B&H, received it last thursday. It's as sturdy as a rock (as has already been mentioned on here).... but...BUT... I'm having a hell of a time with the GoTo.

    I have leveled the mount very well, polar aligned with the Polaris hour angle correct, as close to perfectly balanced the telescope as one can get by hand/eye, set date/time to the second, DST off, time zone to CST (W6:00 on this system), lat and long to the nearest minute according to GPS. The problem I have is that EVERY thing I tell it to go to, it misses by about 2 or 3 hours of RA and as much as 10 or more degrees in DEC. Once I correct it using the controls on the handbox to move to the actual object, the tracking is PERFECT...it'll track without any drift for hours... so I KNOW the alignment is spot on. Anyone else seen an issue like this? Am I missing something? Is there like some obscure setting that isn't in the "initial setup"?
    I just set mine up in my living room with no view of Polaris. I'm set up next to a window and can see the moon and M42. I turned on my scope for the first time, and set it up and used SkySafari 5 Plus on my smartphone to get it close to polar aligned (but still a guess really). I also input my lat/long but for my time zone, I put in E06 (East -6). I did a fake one star alignment (because I can't see any stars from my living room). Then I did a GoTo to M42. While I could not see it through the scope, SkySafari on my phone verified it was very close to where my scope was pointing. I could see the moon, so I used the GoTo to slew it to the moon. After it stopped and beeped, I looked through my scope's finderscope (as I had no EP in the scope and the dew cap was on). Lo and behold, there was the moon, right in the middle of my finderscope FOV!

    I think you have the wrong time zone put in the handcontroller. If you are in the CST put in "E06" and see if that makes a difference.
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  9. #29
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    Default Re: Help With Exos-2gt

    Quote Originally Posted by smeyer8015 View Post
    Don't use planets for alignment Their positions vary too much. Stick with bright stars or M objects.

    I've done a 2 star, but find after aligning to NCP as close as possible, centering the first star, the second star is pretty much in the center ring of the Telrad and very close to center in the eyepiece.

    To precisely center the 1st star without a centering eyepiece, just de-focus the star until it takes up almost the entire field of view. Easy to center that way.

    Scott
    No No... I didn't align to Venus... I slewed to Venus after a one star alignment on Rigel. Was SLIGHTLY off so I adjusted it and "target sync'd" it. Went back and aligned again on Rigel and it slewed right spot on to whatever I selected after that.

  10. #30
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    Default Re: Help With Exos-2gt

    Well... now that I'm able to hit targets.... here's my first ever DSO photo. Of course it's not very good.... lots to learn about it, but I'm pretty proud of myself for being able to even do it at all lolM42 First Ever DSO.jpg

 

 
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