Telescope Reviews: QUANTIX HELP.........

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zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: QUANTIX HELP.........Filters wheel new

[Re: gnabgib]
#5362756 - 08/11/12 12:56 AM

Quote:

Quote:

Has anyone configured a "field power source" and used it for any length of time? I'm trying to put something together to use at a dark site. a little overkill wouldn't bother me but, I'd be happy with 4 to 5 hours of imaging.

I currently have a 1000watt(2000peak) modified sine wave inverter. will 2 X 120amp/hour deep cycle get me there? beyond?

Zerro1;
Stop looking at the 12v deep cycle batteries and start looking at the 6v golf cart batteries. They are the same price BUT have 400 amp/hr ratings! A friend and myself use two of these along with a power inverter and can get 3 solid nights observing with both of our cameras, telescopes and computers running. A Napa store worker turned me on to the golf cart batteries when I went in and asked for two 12v deep cycle batts and he asked me what I was using them for. I explained my intended use when he pulled out their "special batteries" book and compared ratings for several batteries. The golf cart batteries are just plain awesome!!!

Kevin

Thanks Kevin,

I will check into that(maybe tomorrow) I'm hoping to get a shot at a dark site with the quantix next weekend..

Post Extras:

macona
super member

Reged: 05/18/11

Loc: Beaverton, OR

Re: QUANTIX HELP.........Filters wheel new

[Re: zerro1]
#5372613 - 08/17/12 06:15 AM

Im putting together a battery pack, 16 50AH Lithium Iron Phosphate batteries in series/parallel to give me 200AH at 12v nominal. That will feed a 600W true sine inverter. Battery pack weighs 60 lbs and out to get me though at least a night and by the looks of current draw maybe even two.

Huge advantage of Lithium is you do not loose capacity under high load conditions. If you draw at a good portion of a lead acid's capacity you drop down to as much as 60%. With lithium there is no high draw penalty. Also you can charge at full rate as well, so 200 amps for this pack. If I had a big enough alternator in the truck you could charge the pack back up in an hour.

Post Extras:

sullij1
Pooh-Bah

Reged: 11/08/08

Re: QUANTIX HELP.........Filters wheel new

[Re: sullij1]
#5396916 - 08/31/12 03:20 PM

For Alex,

Regarding the reflections,

Sent ya a PM but will repost here:

Yo, check out this post.

http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/5396049/page/0/view/collapsed/sb/5/o/all/fpart/1

Best,

Joe

Post Extras:

zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: QUANTIX HELP.........Filters wheel new

[Re: sullij1]
#5398016 - 09/01/12 12:11 PM Attachment (57 downloads)

Hi Joe! Thanks for linking that(interesting read)

So I went out and played under a blue moon last night with my Quantix. Decided the really give the "Gain 2" setting a good try. I took some extra time to get the framing.

This is light frames only, ran gradX to solve "no flats".

16 X 7 minutes with the Baader 7nm connected to AT66ED and TRF2008

Gain = 2

Edited by zerro1 (09/01/12 12:13 PM)

Post Extras:

zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: QUANTIX HELP.........Filters wheel new

[Re: zerro1]
#5401442 - 09/03/12 04:44 PM

Flats are not at all what I expected, but I succeeded in getting some that seem to work well. I'm used to there being some visual representation on screen that "looks" like a flat...

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AITech
Vendor

Reged: 07/01/11

Re: QUANTIX HELP.........Filters wheel new

[Re: zerro1]
#5479111 - 10/19/12 04:35 PM

Hey guys,
Are the Prontor e/40 magnetic shutters a direct drop in for the cameras or do you need an adapter?
Cheers,
David

Post Extras:

sullij1
Pooh-Bah

Reged: 11/08/08

Re: QUANTIX HELP.........Filters wheel new

[Re: AITech]
#5519778 - 11/14/12 04:36 PM

Wow guys, sorry for ignoring the thread. Got tangled up in the solar junk.

Robert the full size image is spot on. Why did you say "looks like a flat"?

Can you post an example?

David thanks for the call. The IMHO Prontor an easy option as you can mount it like Keith did by machining a place for the solenoid on the outside and plant the shutter underneath or you can fabricate housing like Kevin did for many of us and go that route.

Some machining is required either way.

I must admitt that the solenoid swap that Robert did is also an easy solution "if" you have the shutter housing.

Robert can elaborate a lil more on that for us.

To my knowledge here is no real plug and play solution but the Ilex and the prontor have got us up and running quickly.

Post Extras:

hycheng
member

Reged: 10/09/06

Re: QUANTIX HELP.........Filters wheel new

[Re: sullij1]
#5558657 - 12/07/12 03:22 AM

Hi there,
I jumped into the Quantix camera fun late and just got one from David. Now I am looking for a shutter that may work with it. It seems Surplusshed runs out of the Prontor shutter. Does anyone have an alternative source that is "cost effective" ? Thanks in advanced.

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sullij1
Pooh-Bah

Reged: 11/08/08

Re: QUANTIX HELP.........Filters wheel new

[Re: hycheng]
#5560049 - 12/07/12 10:12 PM

hycheng,

Here ya go:

This:
http://www.ebay.com/itm/ELECTRIC-SHUTTER-BRASS-LENS-8X10-VIEW-FIELD-CAMERA-5x...

or this:
http://www.ebay.com/itm/Ilex-Electronic-Shutter-28-Volts-custom-experimental-...

Instructions for setting up both elsewhere in the thread.

Cler Skies!

Post Extras:

zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: QUANTIX HELP.........Filters wheel new

[Re: sullij1]
#5560333 - 12/08/12 02:01 AM

Welcome to the quantix project. I surely do like mine! It is incredible how sensitive they are and the resolution they provide!

Joe: I guess I should have finished the statement on flats. I'm used to seeing flats generated from an OSC or Canon DSLR. Rather than using ADU's, I was used to using the Histogram as well as looking at the flats in photoshop. The visual representation in MaximDL Pro isn't really like that.

Post Extras:

hycheng
member

Reged: 10/09/06

Re: QUANTIX HELP.........Filters wheel new

[Re: zerro1]
#5560417 - 12/08/12 05:24 AM

Thanks for the leads. Just curious, since this camera is Maxim DL compatible, has anyone tried to use the use filter wheel as shutter in Maxim DL instead of using a leaf shutter ?

Post Extras:

zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: QUANTIX HELP.........Filters wheel new

[Re: hycheng]
#5560864 - 12/08/12 01:08 PM

I am just set up with a manual filter wheel. Take note though... MaximDL PRO is the version that supports the quantix camera.

Post Extras:

hycheng
member

Reged: 10/09/06

Re: QUANTIX HELP.........Filters wheel new

[Re: zerro1]
#5560938 - 12/08/12 02:02 PM

Thanks. I think Photometrics uses the same front flanges for a lot of its camera. I picked up a dead Star1 from Ebay for $30 and they will mount to the Quantix without modification. The problem is the shutter is too small (the original sensor for Star1 is much smaller). I plan to mill out the opening of the flange where the shutter is mount to.
I am debating whether to put a shutter in or just use the filter wheel as shutter option.

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sullij1
Pooh-Bah

Reged: 11/08/08

Re: QUANTIX HELP.........Filters wheel new

[Re: hycheng]
#5562870 - 12/09/12 06:02 PM

No, nobody has tried the wheel as a shutter. I don't know if the wheel would move to the closed position fast enough.

Robert: Thanks for clearing up the flat issue.

How big is the opening on the leaf shutter in the Star 1 ?

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hycheng
member

Reged: 10/09/06

Re: QUANTIX HELP.........Filters wheel new

[Re: sullij1]
#5562921 - 12/09/12 06:30 PM

The shutter opening is 25mm.
The flange is 35.54mm and it clears the CCD but the shutter doesn't.
The coil resistance is 5 ohm so there is a good chance it will work with the Quantix, just need it to be a little bigger.
I just found a set of Photometrics CH250 which has the liquid cooling unit and a CCD size compatible to the Quantix from the local tech junkyard. I am hoping this will complete the Quantix camera.

Edited by hycheng (12/09/12 06:42 PM)

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hycheng
member

Reged: 10/09/06

Re: QUANTIX HELP.........Filters wheel new

[Re: hycheng]
#5564820 - 12/10/12 08:16 PM

No joy on the CH250 shutter. It's the same as the Star 1 which is too small.

Post Extras:

veil
journeyman

Reged: 04/20/08

Loc: Bathurst Australia

Pedestal value new

[Re: hycheng]
#5586349 - 12/23/12 10:08 PM

Hi All,

I am after some feedback on pedestal values from maxim dl. since the camera is 12 bit values should be from 0-4096. My pixel values start at around 48000 to 51200 in maxim dl. Does any one else have similar values?

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zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: Pedestal value new

[Re: veil]
#5589903 - 12/26/12 03:44 PM

Quote:

Hi All,

I am after some feedback on pedestal values from maxim dl. since the camera is 12 bit values should be from 0-4096. My pixel values start at around 48000 to 51200 in maxim dl. Does any one else have similar values?

I'm too much of a newb really know what you're asking? In calibration MaximDL automatically sets the pedestal value to 100. Pixel value from my Quantix in a Bias frame is around 62,000 to 67,000 wich is not much different from a 420 second dark frame that tops out at 70,000. my assumption is that you are working with the Quantix cam?

Post Extras:

hycheng
member

Reged: 10/09/06

Re: Pedestal value new

[Re: zerro1]
#5600553 - 01/01/13 11:47 PM

Robert,
Do you still have any of the Electro-mechanism 6V PO-50 pull solenoid ? I could use one if you can spare one.
Please PM me.
Thanks in advanced.
Chris

Post Extras:

zerro1
Postmaster

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25°...

Re: Pedestal value [Re: hycheng]
#5602261 - 01/03/13 01:15 AM Attachment (20 downloads)

single sub, 10 minutes, gain 2, bin 2x2, temp -37.6 F

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