background image

Oculus handbook Issue 2 January 2013

Anti-blooming: Overload margin greater than 1000x.

Dark current: Less than 0.1 electrons/second @ + 10C ambient.

Data format: 16 bits.

System gain: 0.3 electrons per ADU

Lens details:

1.55mm FL F/2 180 degree ‘Fish Eye’

Computer Interface: Built-in USB 2.0 compatible interface.

Image download time: Typically 0.6 seconds at full resolution using USB 2.0.

Power requirements: Camera is USB powered, dew heater requires 12v at 1 amp max.

Input connection: ‘Mini B’ USB socket for USB2.0 and a 2.1mm jack for +12v heater supply.

Cooling system: Ambient air cooling.

Viewing dome: High quality polycarbonate hemisphere (replaceable)

Overall size:

150mm tall x 95mm diameter

Installing the Oculus:

A new 32 bit XP installation will require the driver files SXVIO.sys and Generic.sys, plus the
SXVIO_Oculus.inf file. A 64 bit machine will require our 64 bit driver package ‘BlockIO64.zip’ or the
new Windows 8 version. I recommend using the new ‘signed’ Windows 8 drivers for any machine
running Windows 7, or above (32 bit versions are included in the download). All are available from our
web pages, if required (

http://www.sxccd.com/drivers-downloads

).

Running the ‘Setup.exe’ file on the supplied CD, will install the drivers and operating software
automatically. If you are installing manually, copy the appropriate files into a convenient folder on
drive C and then connect the USB cable to the Oculus. Point the installer at this folder when it asks for
the location of the drivers and you should see it set up the hardware as a ‘BlockIOClass’ device in
Device Manager.

The Oculus control software is Oculus_USB.exe and the latest version may be downloaded from the
Starlight Xpress web site

http://www.sxccd.com/drivers-downloads

, if necessary. Copy the exe file

and dlls into a folder on drive C and run the exe file to start the software. You need Oculue_USB.exe,
bwcc32.dll and wsc32.dll to run the program. If any files are missing, you can find them on our
downloads web page. Alternatively, ‘PHD’, ‘AstroArt’ and ‘MaximDL’ support the Oculus (as the H9
or SuperStar) and may be preferred. Note that the Oculus may show up as an ‘SXV-H9’ or as
‘Unknown’ in some software, but it should still work OK.

Setting up and using the Oculus:

The best site for your Oculus camera will depend to a great degree on your surroundings and nearby
sources of artificial light. An all-sky lens will image everything in your area and the reflections of
artificial lights in the dome and lens can be objectionable. Try to locate it in a shadowed area with as

Summary of Contents for Oculus

Page 1: ...has a very low dark signal and very little readout noise so it can be used to image faint stars with a very short exposure time The small pixel size and high resolution lens give excellent definition and a good sized screen image format A strong polycarbonate hemispherical dome houses the lens assembly and this dome is easily removed for cleaning when necessary A 12v DC input socket is also provid...

Page 2: ...e Setup exe file on the supplied CD will install the drivers and operating software automatically If you are installing manually copy the appropriate files into a convenient folder on drive C and then connect the USB cable to the Oculus Point the installer at this folder when it asks for the location of the drivers and you should see it set up the hardware as a BlockIOClass device in Device Manage...

Page 3: ...nd improve your low altitude view Mounting the camera assembly is usually done by using the Whitworth tripod screw hole in the attached bracket A camera tripod will provide an adequate mounting for temporary use or a suitable mast and fixing screw can be erected to permanently mount the Oculus several feet above the ground It is wise to mount the unit as high as possible so that the effects of low...

Page 4: ...roblems but these are very common in optical systems that are cooled by radiation to the sky It is very likely that you will have dewing on humid nights unless the dome is kept warm by powering the internal heater via the 12v socket on the rear of the assembly This socket can accept a 2 1mm coaxial power plug from any 12v DC supply capable of driving at least 1 amp the polarity is not important He...

Page 5: ...creen similar to the one shown below The defaults shown above are a typical example but you can change the settings to suit your preferences The main thing to do is to set up the address of the Autosave folder so that your images will be saved to a defined location The Ignore VID PID may be selected if the software fails to recognise your Oculus camera but is not normally necessary Once the defaul...

Page 6: ...lus orientation and location to get the best views The focus should be good as supplied but if necessary it may be adjusted by unscrewing the large outer ring and lifting off the dome Loosen the small lock screw on the lens and gently rotate the top lens ring to refine the focus Re lock the lens when satisfactory and replace the dome You can greatly improve the image brightness and contrast by set...

Page 7: ...sult but this option is available if you need to suppress any hot pixels etc Cover the Oculus dome with a black cloth or opaque container and then take an exposure to match the length being used in your image sequence The resulting dark frame should be saved to c dark def and the Auto remove dark frame check box selected in the camera menu The dark will then be subtracted from all future images No...

Page 8: ...from the Edit menu The slider will permit you to set a threshold for the hot pixels and you should adjust this so that it detects no more than 100 or so Setting it too low will damage your image quality Record the resulting map and then select this from the AVI generator menu As your source images are unaffected by the creation of the AVI you can search through them for meteors satellites etc as s...

Page 9: ...lems The equipment is covered by a 12 month guarantee covering faulty design material or workmanship in addition to any statutory Consumer Rights of Purchasers CONDITIONS OF THE GUARANTEE 1 The equipment shall only be used for normal purposes described in the standard operating instructions and within the relevant safety standards of the country where the equipment is used 2 Repairs under guarante...

Reviews: