Hello!! It's Joseph

setup. pretty much same as GitHub set up group set up project(s) set up members. as Masters create access ( push and pull ) password create SSH key. I use PuTTYGen to generate the key pairs ( detailed instructions can be found in DigitalOcean ) open command prompt in the same directory you saved the public key type id_rsa.pub | clip Then, login to gitlab, the key should be in 1 line, starts with  keyword "ssh-rsa", and  ends with your email gitlab has a tutorial on this Then install git on your raspberry pi, by opening a command prompt: sudo apt-get install git-core git init dowload your git files by opening a command prompt, for example: git clone https://gitlab.com/PZT01/Digital_to_Analog_PZT_driving_program.git  git add . git status git commit -m 'changed line 13, add some comments' git push

download noobs extract to microSD card boot choose (recommended) raspberry pi debian Jesse lite ( 3.8 GB) takes ~ 21  minute for download from internet and install ( wired ethernet speed at 3 MB/s) from menu, go to Preferences>Raspberry Pi configuration, or run "sudo raspi-config" for: timezone keyboard interfaces support, eg I2C, SPI, 1 wire, etc /etc/default/keyboard pc104 us /etc/network/interfaces.d if ethernet is not working, try to change "iface eth0 inet manual" iface eth0 dhcp auto install p7zip for decompressing .7z files   eg   7z x your_archive.7z      

from webastro forum ( in french), with help google translate: Hi planetary imaging fans,;) I've long dreamed about it, ZWO did it! The very promising sensor Sony IMX224 MC 1.27 Mpixels Has finally found its place in an astro camera and I was lucky to be able to test in preview. Thanks Sam! Before these first tests I was still a little skeptical, the announcement made by Sony concerning the IMX224 was quite thundering. And between marketing and reality, there are disillusionment ... http://image-sensors-world.blogspot.fr/2014/10/sony-announces-high-sensitivity-sensor.html After my first tests, there I must recognize that they are very strong at Sony! The IMX224 is keeping its promises, as announced: it is very fast, ultra-sensitive and the noise is really of a very low level. But I would come back. The camera takes up the same aluminum case as the ZWO ASI 120/174. And Point Gray Blackfly is tiny to the side (and heats up too, the small boxes have ...

ICX419AKL ( colour version ) and ICX419ALL (mono version) interlacedCCD   imaging sensor optical size: 8mm diagonal ( type 1/2") 752(H) x 582(V) effective pixels chip size: 7.40mm (H) x 5.95 mm (V) pixel size: 8.6 (H) x 8.3 um spec is a 1st gen SuperHAD CCD  commonly used in CCTV applications For inexpensive astrophotography, it is used in Orion StarShoot G3, and in Allied-Vision Guppy F-044 review here in cloudynights and here sensitivity: 1300mV typical @ 1/50 sec From Starizona: Full well capacity: 50000e- Read noise (RMS): 9e- Dark signal (at 0º C): 0.01e-/pixel/sec Gain: 0.79e- per ADU has a <1 FPS frame rate ( ?) stated on telescopes.net , selling at $399 astro-video on noise reduction

Lens Showing Under-corrected Spherical Aberration Ray Fan Plots, showing Spherical Aberration  Layout of lens with rays from an Off-axis Star  transverse ray fan plot from off-axis star Its axes are marked "EY" and "PY."  EY stands for transverse "error" along the y-axis; that is to say, how far from the z-axis a ray is when it passes by the focal position.  "PY" stands for "pupil" height along the y-axis; that is, how far from the z-axis a ray is when it enters the lens, or "entrance pupil." From Rohr's website and here  

1)  install java re 1.6 ( tested on java 1.8 v131, and working fine) take note of the installed pathname of java.exe 2) download from the binary package from Jan Kotek pixy2.zip. not from github ( the important pixy2.jar file is missing in github) ( instead of directly from yoshida) http://www.kotek.net/blog/pixy2_updated     3) setup  start the software by clicking the pixy2.exe file   when started, click the middle icon "Setup"         setup pathname for java.exe and pixy2.jar as it is on your computer         use > 200MB of memory, eg 400MB.

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