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Astro Geezer

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Posts posted by Astro Geezer

  1. Thanks for that.

    I'm not tied to ZWO so would be open to other brands using the same sensor...

    For some reason I've been very wary of binning. Are there any implications regarding binning? I tried binning while taking exposures and although the sensitivity massively increased, I was horrified to see the images turned out mono 😃 so I'm presuming binning afterwards loses any extra sensitivity and just creates bigger pixels.

    I've seen the 174 sensor seems well suited (correct me if I'm wrong) but the ZWO isn't cooled, however the QHY version is. The 294 is definitely too big as I'd like to image smaller galaxies such as M109. So would the 533 be a good match for an RC6? I guess I'd at least be able to use it with my Evostar 72ed as well as a bonus?

    Thanks again

  2. Hi all.

    Sorry I'm just so confused....pixel size, FWHM, good/bad seeing, sensor size, oversampling/undersampling....my brain is now officially mush.

    Can anyone help me in choosing a cooled CMOS/CCD OSC camera for an Ioptron RC6 f/9 1370mm focal length? I'm on a HEQ5 mount using the Asi120mm mini to guide through a skywatcher 50ed although I've got an OAG but not used it yet, I'm not ready for mono yet.

    I dont want a big sensor, so I can get in closer. I was also (maybe mistakenly) led to believe that I'd need larger pixels. I don't know how much difference any of this makes...

    The Asi 294mc pro looked like a good fit on the Astronomy tools calculator but the chip size isn't small enough. The Atik 414ex looks a good fit on there too but is CCD technology old hat now?

    Any ideas gratefully received!

  3. 51 minutes ago, Paul M said:

    Just make sure that APT isn't trying to use the guide camera! It has a habit of connecting to whatever camera it sees first.

    If you set PHD2 running first, that it, select and start the guide camera and mount (it should loop and guide as standalone). If you now start APT it will default to the camera not already in use, i.e, your imaging camera.

    If you hold shift when you click to connect the camera in APT, it will open a window that among other things allows you to select camera 1 or camera 2. one of those is the guide cam the other is your imaging cam.

    The very latest beta of APT now gives the camera names in that window. Make selection easier.

    Tried PHD2 as a standalone and up pops EQMOD with this...

     

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