Auto guiding with the Skywatcher Star Adventurer

markplym
02 Dec, 2016 17:40
Hello
I am new to the Star Adventurer which I brought due to its great portability, everything  fits nicely in my camera bag.

I am looking to start auto guiding with the SA, I have an ZWO ASI 120MC  CCD which I would like to use on my SA mount. I don't have a suitable mini finder scope to use yet though, so I will need to purchase one.

I have a Canon EOS1100D mounted on a ball head with a Sigma 300mm lens.

My question is how  do you mount the mini finder and camera onto the mount??

I have found that once you get it polar aligned, if you move the camera to point to a target, the polar alignment is lost slightly and you start getting streaking stars, but only noticeable when you zoom in on a frame and when you get home! Annoying.

Mark Bowles
star-watcher.ch
02 Dec, 2016 18:02
Hi Mark

I use a Orion Mini 50mm Guide Scope (162mm focal length). It's mounted on a ball head with an adapter plate (delivered with the guide scope).
See here a picture from my Blog: https://www.star-watcher.ch/wp-content/uploads/2016/07/IMG_8120.jpg

Yes, if I unlock the RA axis and move the camera to the object and lock the RA axis again, often the polar alignment is drifted a little bit horizontally. I check then, that Polaris still is on the middle circle line in the polar scope.
If not, I grab both horizonal adjustment knobs (without unlocking them) and put back Polaris on the line. Unfortunately I noticed that my Equatorial Wedge has a little backlash… I can move it a little bit even if I don't unlock the screws  smile

CS
Karol
markplym
02 Dec, 2016 19:24
Thank you. I will give auto guiding a go and hopefully get some better images with the longer exposures.
MHedenus
02 Dec, 2016 22:33
Hi Mark, use the dovetail L bracket and conterweight. Balance with slight overweight to East that there some pressure on the tooth wheel. First set everything up, do focussing and finally do alignment. If you move in RA and the polar star leaves the circle, stay calm! This error is not your biggest problem…
MHedenus
02 Dec, 2016 22:41
Hi Mark, use the dovetail L bracket and conterweight. Balance with slight overweight to East that there some pressure on the tooth wheel. First set everything up, do focussing and finally do alignment. If you move in RA and the polar star leaves the circle, stay calm! This error is not your biggest problem..

I attached my guiding scope with cable ties to a wooden plate. This plate is attached to a ball head. Simple but it works fine and its cheap.
markplym
03 Dec, 2016 07:30
Hi Michael, thanks for the tips.
markplym
03 Dec, 2016 08:48

Decided to order the Orion Deluxe Mini so I can also use it on my C8 AVX mount too smile
Edited 03 Dec, 2016 10:35
nwsorin
27 May, 2018 08:44
I love this little mount. With proper polar alignment, I get 120s subs without guiding @200m w/mod Canon T5i. I have tried guiding with Nexstar and it worked up to 5min subs.  I mostly use @135mm , 50mm and 85mm lenss. Great little mount for wide field.
Surround
19 Aug, 2018 08:30
Hi all, interesting reading. We are going to Tenerife this autumn and go up in the area around Tejde and (hopefylly) shoot some good pictures using my SA. My questions are as follow: Do you use PHD for guiding, on a pc or ipad, phone, etc? And can someone tell me a little about which cables to use, or other possibilities, wifi, etc?
Thanx

Sincerely
Arnstein Dale
Edited 19 Aug, 2018 10:52
patrick.cartou
12 Sep, 2018 07:45
Hi all again.
I made, 2 nights ago, ma first auto guiding with the SA, Lacerta Mgen and Canon 400mm f/5.6 lens (as "Star-watcher" setup). And my first autoguiding in fact.
I couldn't exceed 45"…was I "wrong" somewhere ?
Thanks if you can help me.
Best regards.
Patrick
Santiago
13 Sep, 2018 20:18
Hi Patrick,
Have a look at the video of star-watcher.ch https://www.star-watcher.ch/equipment/lacerta-mgen-auto-guider/ in which explains how to configure the Lacerta Mgen II in orer to use it with the Skywatcher Star Adventurer. I have followed it and I use to guide 240 s without problems.
I hope that this helps.
Santiago
patrick.cartou
14 Sep, 2018 19:27
Hi Santiago
Thanks a lot.
I already had a look on this video, a bit to fast maybe, but I probably didn't see an important detail. And it was my first real autoguiding essay….
I have to come back to the tasks following…
The next trial will be the good one…?
Patrick
patrick.cartou
19 Sep, 2018 08:27
Hi all.
I could find at last my mistake or my misunderstanding instead.
In my previous trial, I couldn't in fact invalidate the DEC following in the setting window. It needed to choose mode "0"…
So this detail well known, I could realize 2 nights ago a very good following for 180" and quite good for 240"…happy end !
Patrick
huerbsch
19 Sep, 2018 15:33
QHYCCD makes a mini guide scope that would be perfect for your focal
length and its ligt weight. You can mount it to the hot shoe on the DSLR with a hotshoe to finder bracket adapter, $40 on Amazon.
huerbsch
19 Sep, 2018 15:34
https://optcorp.com/products/qhy-mini-guide-scope-with-mount

https://www.amazon.com/Vixen-finder-dovetail-DSLR-cameras/dp/B0753C5FP6
patrick.cartou
yesterday, 07:59
Thanks a lot, Robert !
CS.Patrick
 
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