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Equipment Discussions >> Mounts

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leveye
member


Reged: 02/06/13

Loc: Oregon Coast
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: Phil Cowell]
      #5725124 - 03/11/13 02:23 AM

I hear ya there on the polar scope business.Great work Paul!

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DonBoy
super member


Reged: 09/06/07

Re: Links to YouTube videos..iOptron ZEQ25 new [Re: leveye]
      #5728897 - 03/12/13 08:01 PM

Here's a video on how to use a webcam with your polar scope.

http://www.youtube.com/watch?v=qdfiQ4sGPH0

Astronomy Shed also did a Youtube video tutorial using a webcam.

On the iEQ45 you will need to put a slot on the tube that fits over the polar scope eyepiece for the led light.

Don


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coopman
Post Laureate
*****

Reged: 04/23/06

Loc: South Louisiana
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: DonBoy]
      #5729307 - 03/12/13 11:09 PM

Thanks for the videos, Paul. This mount looks very promising.

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pippo
member


Reged: 01/12/13

Loc: Paris (FR), Pantelleria (IT)
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: Phil Cowell]
      #5730886 - 03/13/13 06:45 PM

Dear all,
do you think that the mount is the mount is also suitable for planetary/lunar/solar imaging with very long focal lengths?

According to some users, the Eq45 is not practical for high-power imaging. Indeed the Eq45 presents a non negligible backlash and large minimum-step movements that make hard to center the planet on the camera sensor for planetary imaging.

I wondering if these issues are present on the zeq25.

BTW, did anyone try to use the mount with a C8?

Thanks

Francesco

Edited by pippo (03/13/13 06:47 PM)


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psandelle
professor emeritus


Reged: 06/18/08

Loc: Los Angeles
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: pippo]
      #5731185 - 03/13/13 09:38 PM

Francesco - was there a scope listed with that iEQ45 that had trouble? Maybe someone was using a scope too big for the mount? I know my iEQ30 is just fine for planetary at f/20 (best I can do with my scope).

Paul


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pippo
member


Reged: 01/12/13

Loc: Paris (FR), Pantelleria (IT)
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: psandelle]
      #5731637 - 03/14/13 05:11 AM

The problem has been raised by a test done by a french astronomy review "Ciel et Espace".

Here is the link of the test (in french, see "Deception en planetaire" bottom of page 81):

http://www.cieletespace.fr/files/InstrumentTest/493_test_Ioptron_iEQ45.pdf

The problem arises with a C11 (12.5 Kg), but is also present, in a milder way, with a Mewlon 210 (8 Kg).

I have a Mak Intes M703 (7.2 Kg, similar to the more diffuse C8) and I am wondering if the ZEQ25 will be sufficient for planetary imaging...and eventually deep sky.


Edited by pippo (03/14/13 05:18 AM)


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psandelle
professor emeritus


Reged: 06/18/08

Loc: Los Angeles
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: pippo]
      #5731965 - 03/14/13 10:29 AM

I'm running a 6" PowerNewt with full AP gear on the iEQ30 (which is just a shade more hefty than the ZEQ25, from what I gather, as far as what it can carry)and it doesn't hiccup. But my scope's a good third lighter than yours.

That looks like the older iEQ45 (pre-clutch change), but I don't read French, so can't be sure.

Paul


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pippo
member


Reged: 01/12/13

Loc: Paris (FR), Pantelleria (IT)
Re: Links to YouTube videos..iOptron ZEQ25 new [Re: psandelle]
      #5732364 - 03/14/13 02:45 PM

Yes the test is on the first version of EQ45

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Bluejay08
member


Reged: 09/29/09

Re: Links to YouTube videos..iOptron ZEQ25 new [Re: pippo]
      #5733310 - 03/15/13 12:10 AM

There is a recent photo in ieq45imaging yahoo group taken by a C9,25EHD @ 2350mm focal length on modified iEQ45 V2http://groups.yahoo.com/group/ieq45imaging/photos/recent/365645394/view

Jay


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