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allcart

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Posts posted by allcart


  1. Definitely NO. Those filters are designed for enhancing views the Ha regions of dso's, NOT the sun. Do not attempt to use one of these filters to look at the sun. Blindness will surely occur in an instant.

    To view the sun in white light you need Baader solar film, or a Herschel wedge. These will reduce the light and heat generated by the sun to harmless levels for observing. To view the sun in Ha you need a dedicated Ha solarscope which has all the necessary etalon filters and blocking filters built in.

    • Like 1

  2. That's a nice looking setup Liquid360.

    What type of filter have you decided to use?? Baader solar film or a Herschel wedge.  If you are going to use your setup as it is, then any scope or finder that has NO solar filter fitted, must have the objective end covered. Pointing any open ended scope directly at the sun with NO solar filter in the optical train will destroy the eyepiece or camera chip.

    If you are viewing/ imaging through the SV, then keep the Tak objective covered.

    • Like 1

  3. Nice results Chris. You may be feeling a little smug now, but just wait till the winter months when its really dark and cold. Then you will be feeling incredibly smug. :grin:  :rolleyes:  :rolleyes:

    I see nothing wrong in a bit of post processing on the final image that you want to save for posterity. Its all good.

    • Like 1

  4. The fov would be almost the same as you would get in your 6MM Radian Kerry. Not exactly, but very near. A 5mm Radian would be just a slightly better match. Monitor size and resolution doesn't matter. You see what you see. The only major difference is that the monitor image will be rectangular and have more in the corners. The view through the ep will be circular, but the object of your affection will appear to be the same size.


  5. From my viewing between 12-2200 and 13-0200 the bias seemed overwhelmingly towards the right hemisphere from Perseus,

    with very few going into the Left one towards Auriga but this will tend to even up more later in the morning so my plot would have

    looked slightly different if I had stayed up later than 0200.

     

    Mick

    That's interesting Mick, I didn't fair too badly imaging the left side to avoid the moon glow. I would have tried the more Eastern fov if not for the moon. Just a bit of patchy cloud here now. Cam is running so I hope it clears after midnight when I get a good view of the radiant.


  6. Thanks Allan.

    Clouded over about 80-90% at time that I could observe them so I watched your live stream for a little while so at least caught a couple that way :)

    Thanks for having a look Nigel. You should have popped in for a chat.

    I was online until about 3am so I saw a few bright ones on the screen. Then found all the faint ones when reviewing the captures. It was quite a good night. Maybe the weather gods will clear the sky tonight so that I can get some more.


  7. ND5 is safer for visual. You would probably find ND3.8 a bit bright on the old eyes. ND3.8 is better for imaging as surprisingly, you need the extra light. No problems at all with heat buildup. The filter rejects almost all of the energy of the sun so no heat gets through.

    Early morning or later in the afternoon are cooler, but this is for the benefit of less thermal currents and steadier seeing. Nothing to do with sensors and heat. I have imaged for 9hrs solid and suffered no damage whatsoever to my cams.


  8. I settled on a sensitivity of 66 last night due to fast clouds causing continuous recording. There is a feature in my cam to eliminate hot and dead pixels.(very handy, as I had 2 dozen of the little blighters) I'm using a fairly low gain setting, and a senseup setting of x8 for faster integrations. (smoother video) The cam will go up to x512.

    I then use a high contrast and tweak the brightness to get a reasonable dark sky. I think this may help Handyavi to see stuff quicker, although why it never picked up the brightest one, I don't know. The most annoying thing I have found is that when it records too fast, e.g planes, clouds, it stops producing the composite jpeg for quick reviewing, so I spent 3 hrs this morning scanning hundreds of avi's for meteors.

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