SBIG - Santa Barbara Instrument Group
CFW-9
Color Filter Wheel
Manual
Page 1: ...SBIG Santa Barbara Instrument Group CFW 9 Color Filter Wheel Manual...
Page 2: ...tilian Drive Santa Barbara CA 93117 Telephone 805 571 7244 FAX 805 571 1147 Copyright Notice This manual is copyrighted by Santa Barbara Instrument Group SBIG This manual may not be copied in whole or...
Page 3: ...ABLE OF CONTENTS Introduction 1 Overview of Taking and Processing Color Images 2 Telescope Work 2 Color Image Processing 3 Hardware Reference 4 Making the Electrical Connection 7 Maintenance of the Co...
Page 4: ...he ST 7 8 9 10 2000 cameras This list may be expanded as we add new models Many third party software packages also support SBIG products The Color Filter Wheel is an accessory that mounts on the front...
Page 5: ...e Red Green or Blue or match the exposure duration of each primary image to the brightness of the object Typical ratios of Red Green Blue are 1 1 1 6 to match the exposure to the CCD s sensitivity usi...
Page 6: ...or images You select the Red image from the set of three primary images you want to register and the software then loads and displays it In that image you select a reference star or pixel and this ref...
Page 7: ...The filter wheel contains a magazine with five filter positions capable of holding standard threaded 1 25 inch eyepiece filters SBIG provides optional filters for use with the CFW 9 The filter wheel a...
Page 8: ...phillips head screws and set the screws aside The T Thread mount is where the nose piece screws into the camera head It is a block approximately thick and shaped like the letter D attached to the fac...
Page 9: ...different camera 4 Using the four 4 40 by 3 16 socket screws provided attach the CFW 9 cover to the front of the ST 7 8 9 10 2000 Make sure you use the provided screws whose length of 3 16 is required...
Page 10: ...ing information from the camera thru this connector This cable plugs into the I2C AUX port on the ST 7 8 9 10 2000 USB camera Note This is different from the earlier CFW8A which used the AO CFW SCOPE...
Page 11: ...mera filter wheel combination to the telescope you should then drape the Camera s head cable over the fork of the telescope and clip it in place so that the cable doesn t drag on the ground as the tel...
Page 12: ...ter wheel Use the Setup command in the Filter menu to tell the CCDOPS software which filter position contains which filter You do not have to follow the default RGB positions Vignetting The increased...
Page 13: ...e custom filters designed specifically for SBIG cameras Dichroic filters were chosen over absorption filters for three reasons First of all they have high transmission in the passband region Second a...
Page 14: ...t pixel remove utility in CCDOPS should be used In spite of all this you will find that even subtle colors present in galactic scenes enhance the image noticeably and emission nebulas take on beautifu...
Page 15: ...ft cloth A small amount of lubricant can be applied to the magazine axle should the unit start to chatter but please do so sparingly It really is a light duty interface If some part of the CFW 8A asse...
Page 16: ...filter wheel will be held in place against the motor and can be leveled to make installing the front cover easier Though it should not be necessary to do so you may loosen the two screws that hold th...
