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ZWO 12"F4.2 newtonian First light with ASI120MC

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#1 wenjha

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Posted 15 January 2013 - 11:52 PM

First light of 12"F4.2 newtionian. transparence is very poor, but seeing seems not so bad.can only see jupiter in the red sky.
capture 3mins at 40fps
The first try

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#2 wenjha

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Posted 15 January 2013 - 11:53 PM

seeing seems better

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#3 wenjha

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Posted 16 January 2013 - 12:06 AM

12"F4.2 light weight newtionian. only 12kg.
here is a picture mounted to HEQ5 PRO

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#4 wenjha

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Posted 16 January 2013 - 12:08 AM

bad weather

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#5 ZuoZhao

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Posted 16 January 2013 - 01:09 AM

Well...I captured at the same night. But too later...I missed events.

#6 wenjha

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Posted 16 January 2013 - 01:23 AM

12“ here still cannot beat the 10" in ShenZheng.
what's a pity!

#7 karlo

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Posted 16 January 2013 - 03:36 AM

wow 12" scope balanced on the HEQ5 !! Looks like it really is quite a lightweight structure you've built there Sam. Given the conditions I think your pics are to be commended. :)

#8 Kokatha man

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Posted 16 January 2013 - 03:44 AM

Still a good image Sam - especially in that soupy sky there..!:shocked: :waytogo: :waytogo:

How much does that mirror weigh in the total of 12Kgms - and is your truss design/frame rigid enough to hold accurate collimation....?

If it does provide a rigid frame I believe your 12" on an HRQ5 is a real bonus.....12Kgms is easy-peasy on those little mounts - and the wind would blow right through it without any real "sail" effect..!!! :bow:

I've been meaning to email you for quite some time to ask you about considering a special custom job for me and my 16" F4 mirror - I'm unhappy with the solid aluminium OTA and have considered what alternatives there might be.....I allways want more aperture for my planetary imaging - send me an email with your thoughts please!!! :grin:

#9 wenjha

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Posted 16 January 2013 - 04:58 AM

wow 12" scope balanced on the HEQ5 !! Looks like it really is quite a lightweight structure you've built there Sam. Given the conditions I think your pics are to be commended. :)


thanks Karlo
I think this is the limit of HEQ5.

#10 wenjha

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Posted 16 January 2013 - 05:54 AM

thanks darryl.
the mirror weight 5.5kg.
the truss I think is solid for plantery imaging.but still under more test.
I will add black shield when Imaging.So wind is a big problem actually
16" is out of my ability I think but I still will email you

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#11 emadeg

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Posted 17 January 2013 - 08:26 AM

very very good job!!
How you connected the black length of cloth to the truss? Straps? or other?
Thanks

#12 wenjha

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Posted 18 January 2013 - 12:14 AM

the cloth use some material which have flexibility
so it will hold the body






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