JohnH
03-02-2016, 02:25 PM
Hi SBig users,
I am having problems with my ST4000. I can connect ok but the images are corrupt. I have tried direct connection and a second power supply but it make not difference. I connected my ST2000 to the same cables, PC and power and that worked fine so I am pretty sure it is the camera that has gone faulty. I am attaching a couple examples of what I am seeing and am hoping someone can suggest what the fault might be - and if it is a user fix or a return to SBig job (costly!). I could replace the analog board for example...
Anyway here are the odd images, it seems as if the central part of the chip is not reading/registering photons and the left and right edge areas are active but noisy. I have included a dark frame from better days for comparison. The light frame was a 1 minute exposure indoors with a pinhole in front of the nosepiece. All images are half scale, and stretched to show the issue. It is very odd....
I am having problems with my ST4000. I can connect ok but the images are corrupt. I have tried direct connection and a second power supply but it make not difference. I connected my ST2000 to the same cables, PC and power and that worked fine so I am pretty sure it is the camera that has gone faulty. I am attaching a couple examples of what I am seeing and am hoping someone can suggest what the fault might be - and if it is a user fix or a return to SBig job (costly!). I could replace the analog board for example...
Anyway here are the odd images, it seems as if the central part of the chip is not reading/registering photons and the left and right edge areas are active but noisy. I have included a dark frame from better days for comparison. The light frame was a 1 minute exposure indoors with a pinhole in front of the nosepiece. All images are half scale, and stretched to show the issue. It is very odd....