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sullij1
Pooh-Bah


Reged: 11/08/08

QUANTIX HELP.........
      #4619543 - 06/04/11 12:07 AM

Just starting a new thread for Quantix camera owners to discuss getting their camera running.

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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: sullij1]
      #4621223 - 06/04/11 09:41 PM

sullij1;
Just saw your posting on the "old" thread I started and I agree that those of us who purchased these cameras should work together to get the most out of them! My wife is also an astronomer and when she saw the ccd sensor her jaw dropped in amazement. Some comment about CCD "acreage" spewed forth!!! I agree with your comments regarding first impression of these cameras. I noticed there is no mechanical shutter BUT upon further investigation discovered
that all the electronics are there to operate a Uniblitz or simliar shutter which is the type used by Photometrics!
So count me in on the cooperation aspect and lets see how far we go!!

Kevin


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... new [Re: gnabgib]
      #4621324 - 06/04/11 10:36 PM

Looking forward to seeing what ideas surface to get these cameras more portable. I have found some potential solutions for the getting the laptop in the loop. There was a previous post about PCI equiped docking stations. That was a good suggestion for those that have laptops that will dock. Looks to be the most economical. The PCI box conversions are as much and in some cases more than the docking stations with the PCI ports. This cam was the perfect oppertunity for those of us who can't lay out 7 or 8K for astro commercial versions. Thank you for giving us this oppertunity. Even if it takes another 500 or thou to get the thing portable and configured, that is still a 10th of the cost of commercial versions. I know I am willing to wrestle with the situation for a while.

Thanks again.


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kw6562
Authoritative Ignoramus
*****

Reged: 06/25/08

Loc: MA
Re: QUANTIX HELP......... new [Re: sullij1]
      #4621462 - 06/05/11 12:02 AM

Sounds good - mine will be here Monday. I'm resurrecting an older desktop machine with PCI slots and I plan to run a 30 ft. cable to my pier. That will be a total of three computers to run my setup - my main laptop that interfaces to the mount, the cameras, and the filter wheel; a second laptop that runs PHD for guiding and the focuser and a focus position indicator; and the desktop for this camera. It should be fun...

I agree about the price - I always have rough plans in mind to upgrade my equipment, but if this works I won't think about cameras anymore, "just" mounts and optics.

I'll be happy to help in any way I can. As I mentioned in the other thread I have a friend at work who designs cameras and there are several others as well, so I should be able to get some questions answered.

Can't wait to get started! --Keith


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macona
super member
*****

Reged: 05/18/11

Loc: Beaverton, OR
Re: QUANTIX HELP......... new [Re: kw6562]
      #4621562 - 06/05/11 01:44 AM

I think mine should be here monday as well. Not sure since the tracking number they gave me is bad.

A friend gave me a 1Ghz C7 Via based mini-itx motherboard. I was going to put a test system together this weekend to try but I cant find any SATA data or power cables. Grr...

I doubt it will have enough power to do much but it's worth a try.


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macona
super member
*****

Reged: 05/18/11

Loc: Beaverton, OR
Re: QUANTIX HELP......... new [Re: macona]
      #4621620 - 06/05/11 02:31 AM

From looking though the Quantix manual it looks like the shutter is probably a VS35 model.

http://www.uniblitz.com/product.aspx?productName=VS25&housing=S1&bfID=1&mount=&so=&hto=&tab=0]http://www.uniblitz.com/product.aspx?productName=VS25&housing=S1&bfID

Edited by macona (06/05/11 04:07 AM)


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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: macona]
      #4622604 - 06/05/11 04:07 PM Attachment (155 downloads)

Thought I would post a few picts so here goes! In this shot I had removed the "lens mount" that came with the camera.

Edited by gnabgib (06/05/11 04:14 PM)


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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: gnabgib]
      #4622605 - 06/05/11 04:08 PM Attachment (120 downloads)

Camera backside

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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: gnabgib]
      #4622607 - 06/05/11 04:09 PM Attachment (121 downloads)

Back cover removed (Yeah! Nothing is sacred to me!)

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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: gnabgib]
      #4622608 - 06/05/11 04:12 PM Attachment (114 downloads)

I figured out the "extra" connector was the shutter connection so I tested it out using a 25mm uniblitz shutter I had. Everything worked well! So this proves we can add a shutter and have it work under the software control.

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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: gnabgib]
      #4622610 - 06/05/11 04:13 PM

By the way, The shutter circuit starts with a 24VDC pulse then holds at 4VDC.

Kevin


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macona
super member
*****

Reged: 05/18/11

Loc: Beaverton, OR
Re: QUANTIX HELP......... new [Re: gnabgib]
      #4623154 - 06/05/11 09:48 PM

Is the VS25 the right one for it? Kind of looks like it. But I think it might eclipse the sensor on the edges. In the manual it looks like there is a additional, larger diameter housing.

I have one as well. Came out of a LASIK system.

If all else fails I can make up a bunch of shutter housings on my cnc mill.


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... [Re: macona]
      #4623328 - 06/05/11 11:31 PM

Questions?

Is the shutter necessary? The same thing can be accomplished covering the scope objective, right? The idea of the shutter is for taking darks, correct? Please forgive my noobness but what am I missing?

Really not trying to be adversarial, just questioning the necessity of the shutter. The offer to machine is generous and respected.


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macona
super member
*****

Reged: 05/18/11

Loc: Beaverton, OR
Re: QUANTIX HELP......... [Re: sullij1]
      #4623364 - 06/05/11 11:50 PM

Not completely necessary. It speeds things up to be able to take a dark field right after the shot. Also continuing to expose while doing a readout can cause some issues on a full frame sensor like what's in these cameras.

One possibly solution would be to use a filter wheel with a opaque filler and move to that position when you read out. I have a feeling the shutters are pretty spendy.


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... new [Re: macona]
      #4623403 - 06/06/11 12:05 AM

Here is a 3 minute dark with the exposure ran up to show my chip condition.
QTX JPG by Sullij1, on Flickr


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... new [Re: sullij1]
      #4623417 - 06/06/11 12:13 AM

Lets try that again a lil bigger. The Quantix 3 min dark:

QTX 512 2 by Sullij1, on Flickr


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... new [Re: sullij1]
      #4623459 - 06/06/11 12:50 AM

Just to be accurate; I acquired the dark image in the RS Image program that came with the cam (good software, lots of options). Moved the image to Photoshop, ran up the exposure until defects started to show and stopped. Saved the image as a 512k tiff, and reopened the tiff in nebulosity. Nebulosity is unforgiving and shows all the detail, good or bad. I then used the JPG “save as appears” option in Nebulosity’s file menu. This showed me what I wanted to know about the chip. I think nothing that darks, flats and a lil hot pixel removal can’t deal with. Please correct me if I am wrong.

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gnabgib
sage
*****

Reged: 06/05/05

Loc: Fall River MIlls Ca.
Re: QUANTIX HELP......... new [Re: macona]
      #4623477 - 06/06/11 12:59 AM

Quote:

Is the VS25 the right one for it? Kind of looks like it. But I think it might eclipse the sensor on the edges. In the manual it looks like there is a additional, larger diameter housing.




You are correct that this camera needs a vs35 shutter. I just happened to have a vs25 so I used it to test the shutter circuit. The idea of using a filter wheel has merit but some sort of motor controller will need to be designed. The shutters ARE pricey new! Perhaps a surplus source can be found?

Kevin


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... new [Re: macona]
      #4623484 - 06/06/11 01:03 AM

Quote:

Not completely necessary. It speeds things up to be able to take a dark field right after the shot. Also continuing to expose while doing a readout can cause some issues on a full frame sensor like what's in these cameras.

One possibly solution would be to use a filter wheel with a opaque filler and move to that position when you read out. I have a feeling the shutters are pretty spendy.




From my experience with the RS Image software, it appears to work as Maxim DL and Nebulosity does with my starshoot, you command the cam to do a 180 sec exposure via the software and it exposes for 180 seconds and turns off (goes into non image stand by) waiting for another exposure command. Sequential frames can also be taken with specifide pauses in between. Isin't this routine somewhat of a eletronic shutter? Again please correct me if I am wrong. I also thought of a filter blank but the way the software commands the cam it seems like a shutter will not be necessary.

Sorry if it seems as if I am trying to cheap out but my budget "is" limited. Also if the software is providing the necessary utility functions, we are good to go, right?


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sullij1
Pooh-Bah


Reged: 11/08/08

Re: QUANTIX HELP......... new [Re: sullij1]
      #4623505 - 06/06/11 01:34 AM

If my last post helps the shutter issue, I have another question. When I removed the threaded lens that came with the unit and tried to screw in my 2 inch camera adapter (normally screws in the canon bayonet adapter) that will connect to a wheel or slide, I found that the cam snout is too large. My 2 inch threaded camera adapter is to small and another adapter will be necessary to reduce the Quantix snout to accomodate the 2 inch scope/filter adapter. Has anyone found a solution to this yet?

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