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3 septembre 2012 1 03 /09 /septembre /2012 21:41

Please have a look at my first results on the QHY5 TEC cooling !

 

Cooling the QHY5 imager/autoguider (step 2)

 

Best regards !

 

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14 août 2012 2 14 /08 /août /2012 14:23

Hello,

 

I'm still working on the philips cameras support on the new kernels. The pwc driver available with the

ubuntu 12.04 LTS is bugged and imcomplete. Our cameras won't work on this release. If you really

need to use your webcam, I recommend you to use the last kernel 2.6 release, with the ubuntu 10.04 LTS and

qastrocam-g2_beta20110115.

 

I'm really sorry...

 

Best regards

 

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12 août 2012 7 12 /08 /août /2012 16:04

Hello !

 

I found a very low cost B/W camera for planetary imaging on ebay. Follow this link : link

I just received my new toy yesterday. It's Point Grey Research FireFly MV, with an 1/3" CMOS with global shutter, able to reach 30 to 60 frames per second (8 bits or 10 bits).

 

Dynamic range is nice, high sensitivity in near IR, low noise, but a lot of hot pixel. This sensor should be cooled. Max exposure is about 1/7.5 fps. Ambiante temperature is about 28°C

 

Raw image :

 

fc2_save_2012-08-12-151401-0000.png

 

 

 

100 frames stacked without dark :

 

essai1.png

 

 

Dark :

 

dark.png

 

 

100 frames stacked (median) with dark substraction :

 

essai2.png

 

As you can see, a lot of hot pixels, but very low read noise.

 

To be continued...

 

Best regards !

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5 août 2012 7 05 /08 /août /2012 01:12

Hello !

 

I use qastrocam-g2 on my laptop, but also on my netbook. 1024*600 is really tiny. If you want smaller windows for qastrocam-g2, you can use "qt3-config", with the "Polymer" style. Just install these two packages, and choose "Polymer"

once qt3-config is running.

 

 

Qastrocam-g2 "old style" :

 

qastrocam-g2-std-copie-1.png

 

 

 

Qastrocam-g2 "new style" :

 

qastrocam-g2-polymer.png

 

Best regards !

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27 juillet 2012 5 27 /07 /juillet /2012 20:44

I found an other interessting FAQ about the Peltier TEC and effect : link

 

Best regards !

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20 juillet 2012 5 20 /07 /juillet /2012 08:26

If you're a bit confused by the Peltier and Seebeck effects, there is a very insteresting FAQ written by Tellurex (a Peltier modules producer) : link

 

If you want to know your stuff's thermal resistance, just go there : link

 

Best regards !

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19 juillet 2012 4 19 /07 /juillet /2012 17:42

The QHY5 peltier tec cooling is on the way. I'm waiting for my new module to arrive.

I updated my page a bit : Cooling the QHY5 imager/autoguider (step 2)

 

cooling

 

To be continued...

 

Best regards !

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11 juillet 2012 3 11 /07 /juillet /2012 16:02

Hi !

 

I'm working a bit on qastrocam-g2. A new beta is available. The qwtplot3d library isn't needed anymore. It compils on

ubuntu 12.04 LTS (V4L1 access removed). I'm still working on the Philips cameras support over V4L2.

 

The 4.9 release won't add any new features. I just want the actual features to work on fresh kernels. QT4 migration is planned for the 5.0 release.

 

Best regards !

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29 juin 2012 5 29 /06 /juin /2012 13:00

Hi !

 

Sorry, I'm still very busy, so qastrocam-g2 isn't maintained any more. Canonical introduced many changes in the last Ubuntu release, and qastrocam-g2 is getting harder and harder to run on this distribution. If you want to use qastrocam-g2 on the last Ubuntu LTS (12.04), you have to install the libqwt3dplot library. This library can't be found in the default repositories. It can be found in this page : link

 

Once this library installed, the last qastrocam-g2 4.8 binaries should work. Sadly, the Toucam and the QHY5 cams won't work. I will have to rewrite some stuff.

 

Screenshot-from-2012-06-29-13-11-22.png

 

Best regards !

 

Thx8411

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4 juillet 2011 1 04 /07 /juillet /2011 15:05

Hello folks !

 

Sure, I'm still alive, but I'm really really busy ! My 16 months old daugther and my just born

son eat all my available time ;-)

 

Best regards !

 

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