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Oslet

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About Oslet

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    Nebula

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    Norway
  1. Ok guys. I did it finally. I'm not sure how. But i uninstalled everything and reinstalled the ASCOM platform to latest version. I installed the skywatcher driver again. Then I started Cartes du Ciel and connected through the hand controller. Now I won't touch anything. Clear skies tomorrow.
  2. Ok, thanks for the reply. I'll try the FTDI driver. I cant remember updating anything since it last worked. But I'm sure its a driver issue. It's clear skies in the next few days, so I dont have time to get the eqdir cable If not I'll uninstall all software and start from scratch. Any other folks encountered the same issue?
  3. Sooo...I'm getting quote frustrated here. This spring I tested my HEQ5 with guiding. The synscan controller was connected to the computer trough the USB plug on the hand controller. This worked like a charm in my living room. On the new controllers you dont need the rs cable. But when I tried the whole thing with guide cameara for some live shooting, it just did not work. I get something wrong with the com port in decice manager, driver not working. I have tried 3 different drivers. The whole thing responded, connected and was guiding when i did a dummy test before the summer. So setup is pc-synscan via usb for pulse guiding. Can it be a problem with windows 10? What t h.... just happened? Where can I find a driver that works? And believe me it worked 5 months ago, argh. Thanks for any respons and support
  4. Hi, This is 1300D, 60sec, ISO800, dark file. Sub zero temperature outside the camera when the exposure was taken. I don't really know to much about this yet as I'm a beginner. So i can't say if it's normal. But you can compare to the RAW file attached. It has far less noise at half the exposure. If you have multiple captures, use sigma stacking and stack them and see if some of the random noise dissapears. Cosmic radiation or other sources will make random noise on the chip. I might be far out as I'm a beginner myself ;) D_0051_ISO800_60s__16C.CR2
  5. Made using MSICE from 3 frames and post processed in GIMP. Taken in daylight condition, close to sunset. Had to cut out the moon and apply new background, so the edge is a bit dodgy. Telescope 200pds, camera EOS1300D, 2xbarlow.
  6. The black dot will appear if the eye is not in the correct distance from the lens. I have the same thing. I've not seen that the center is out of focus, so I guess you have better eyesight than me. When the light passes close to the edges of the mirror and veins it will be deflected, because of heisenbergs uncertaninty priciple. But its not many photons compared to the whole lot. And there will always be a shadow in the center off focus. But I have not noticed anything in focus during daylight testing.
  7. Ok. I guess I'll have to wait until fall for more experimenting. Anyway this is the result with ISO 400. I would say that the grainy noise is evened out. This is the worst possible condition in nautical twilight, and you can see the moonglow from the top of the picture. I have to try high ISO to see how that works out in the final image in the fall. The curse of living above LAT 60
  8. Ok: take a look at screenshot of the RAW files. You can clearly see the noise here. Different exposures at ISO 800 30sec/60sec, with a fairly bright sky. This noise is also quite evident in the darker subs I've taken. My goal now is to get as much data as possible and even out the noise. My take on this is short exposure at ISO400 - maybe 30 - 50 sec. Whats the experts take on this? Anyway I'll try tonight, and the sky will be bright. So I I'll post my results as soon as I can
  9. Sooooooooo....maybe ISO 400 maybe? I've always used 800. But after reading Altais link I'll try 400. Hoefully the data will stick to th RAW files. I'ts getting very technical very fast. I've got a lot of reading to do. Thanks for all the good info.
  10. SNR and photon essays can be quite interesting ?
  11. Nice one of M82. I can see that my approach might be right then. The conditions are wery bad now, but I think I'll try one more night this season. Target M101, 30 sec exposures. I have not tried any filters yet. Maybe I'll have a shot at RGB. Just to see how much data I can pull from a bright sky.
  12. Hi and thanks. The subs are 60sec. I can usually get 60 sec with HEQ5 and good polar alingnment. Just need to get a coma corrector
  13. Hi and thanks. I think I'll try that next time I'm doing daylight shooting
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