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ioptron cube as airline travel mount

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#26 Telescopeman54

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Posted 26 March 2009 - 06:15 PM

Rahul:

With the supplied tripod, about 8 pounds, max. With a more robust tripod, maybe 12 - 13 pounds. I'd set the upper limit at a C6 or similar.

Steve

#27 n1toga

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Posted 26 March 2009 - 11:48 PM

Thanks Steve,
I already have a Celestron Nexstar SLT mount with the C6 mounted on it. It works like a charm visually, I've cranked the scope up to more than 350X on the moon without any problems. Focusing is a bit giggly but not too bad, rest all is ok. Looking at Jeannette's photo's has me thinking a bit. I don't know if the SLT's tracking is as good as the I optron Pro. From all that I read the PRO mount should have more precise tracking. For exposures of 60 sec or so I think it should be fine....any thoughts?

Rahul

P.S. Don't have a DSLR which cheap one would you recommend.

#28 Jeanette

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Posted 27 March 2009 - 12:07 AM

Hi,
Thanks for the kind comments about the article guys.
The little Cube is great little grab and go unit. I've just taken posession of a Mini Tower, but there's no way I'd be able to sell the Cube.

#29 Telescopeman54

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Posted 27 March 2009 - 09:19 AM

Rahul:

I am a visual observer. My son, Stephen and I, have only dabbled in AP. From what we have so far learned, 60 seconds is where field rotation begins to show when in the A/A mode.

I don't have a DSLR either. A few of my friends do have them and they all have Canon models.

Jeanette: You are one impressive lady and your work is an inspiration. You and John Bozeman are really showing what can be done with only modest equipment. Keep up the good work!

Steve

#30 Jeanette

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Posted 27 March 2009 - 04:23 PM

It is difficult getting around the field rotation problem associated with alt az mounts.
Which is why I use the Gstar Ex. With only 2.56 sec exposures at max integration, you can't go wrong.

#31 Dr Benway

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Posted 27 March 2009 - 06:33 PM

I am shooting 56 seconds max due to field rotation with my C8/Hyperstar3/QHY8/Mini Tower. It is a very stable platform and would be ideal with a wedge.

John Bozeman

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#32 Astrobuddy

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Posted 27 March 2009 - 09:27 PM

It is difficult getting around the field rotation problem associated with alt az mounts.
Which is why I use the Gstar Ex. With only 2.56 sec exposures at max integration, you can't go wrong.


Should the 2.56 sec be 56 sec? or you meant 2 stack of 56 sec?

#33 Jeanette

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Posted 29 March 2009 - 07:10 AM

The max exposure of the Gstar is 2.56 seconds.
Minimum is 25 frames per second.
You get a quite bright live view on you monitor showing lots of detail. Beats looking through an eyepiece.

#34 Jimyw123

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Posted 29 March 2009 - 10:13 AM

John, is the photo at the end of your post taken by the minitower?

#35 Astrobuddy

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Posted 29 March 2009 - 10:23 AM

I saw in your article you pushed to 60 sec exposure using the Cube.

#36 Dr Benway

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Posted 29 March 2009 - 01:13 PM

Yes. It was 10X56 seconds captured in Nebulosity2, stacked in DSS, processed in Photoshop7, and combined with another frame shot in H-alpha with RegiStar. Here is the original 10X56 without the Ha.

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#37 Jeanette

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Posted 29 March 2009 - 11:38 PM

I saw in your article you pushed to 60 sec exposure using the Cube.

Yes, but I didn't use the scope only the mount. The 20d was mounted on to the cube using a dovetail bar. I used a 50mm lens for a nice wide FOV.

#38 Jimyw123

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Posted 31 March 2009 - 11:12 AM

Thanks, John! The photo is magnificent! Are your sure it’s not by Hubble Scope?

#39 Dr Benway

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Posted 31 March 2009 - 03:58 PM

I'm pretty sure it came out of my camera. It took a lot of processing in Photoshop to get the way it is.

John

#40 Preston Smith

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Posted 31 March 2009 - 04:13 PM

I just found from iOptron website that the hard case for Cube and CubePro is available at $89. The size 31"x15"x8" is perfect for air traveling, even for small airplane.


Just realize that the case will have to go as checked baggage and there will be a cost. The linear dimension of the case is 54 inches, far exceeding the airline carry-on luggage maximum of 45 linear inches.

Not sure I would want to put the mount in checked baggage thought...might be too rough for it.

#41 John_C

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Posted 11 August 2009 - 12:02 AM

Rahul:

With the supplied tripod, about 8 pounds, max. With a more robust tripod, maybe 12 - 13 pounds. I'd set the upper limit at a C6 or similar.

Steve


Is it really just the tripod that is the limiting factor? I was thinking of the cube pro for my 6" Mak but the ota alone is 12lbs add on a finder, an eyepiece or camera and 13-14lbs wouldn't be surprising so I had ruled out anything less than the mini-tower (which is out of my current budget).

I could sell the Mak and get a C6 which are quite inexpensive right now and a couple of lbs lighter, but all the advice I get is that it won't give as good an image as the Mak so I'd rather not.

I would have thought it was the bearings, gears etc. that limited the maximum load (at least as much as the tripod)... or is the head beefier than its rated capacity would suggest? If so that would be great!
:jump:






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