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About fireshipjohn

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    essex uk
  1. Hi, Just received a flyer for the new Raspberry Pi4 with 8Gb of memory, should be good for Astroberry! Ordered
  2. The Skywatcher flatteners need 55mm of backfocus to achieve a flat field, this ZWO article may help in planning the layout. https://astronomy-imaging-camera.com/tutorials/best-back-focus-length-solutions-55mm.html I have an ED80 with the flattener and it all works fine, should be similar or better on an Esprit
  3. Hi, I had a similar issue with the same arrangement, the bolt is just a standard M10 or M12, the issue I found is a standard EQ5 wont fit, I spoke with RVO but they said it only fits HEQ5, So I had to take a dremel to the inside face to allow the EQ5 to fit, then you need a M12 female to M10 male thread adaptor so the tripod plate will screw into the EQ5. If you don't have the tripod spreader you can just use a standard M10 bolt I think. But it can be done!
  4. I agree with johninderby, that is a very good price, does anyone know if it fits a Skymax 127? I already have the thread adaptor to fit standard SCT accessories, but is the overall diameter too large to fit the smaller scope? John
  5. Hi, All its telling you is while the field size overlay is accurate, the orientation of the overlay is an unknown guess until you plate solve. Once its solves it will orient itself properly. You don't need to disable WCS, just don't trust it until its solved. Some rotators can be connected to send the the info to and fro, without plate solving, but I don't suppose you are using those.
  6. That moon picture is the old camera from 2016
  7. Hi, I see there is a new official camera for the Raspberry Pi, 12 megapixel Sony IMX477 sensor, C/CS mount. What possibilities does it have for us? All-sky, Guider, Peltier addition or maybe a lower risk way to Debayer https://www.raspberrypi.org/blog/new-product-raspberry-pi-high-quality-camera-on-sale-now-at-50/ John
  8. Yes, very unstable seeing here in Essex, but looks good when its stable! V. Difficult to focus. John
  9. Yes, here it is in Essex in the last 10 mins...
  10. Hi Wyvern, it does not need to be command line only, you can run a Ubuntu/Debian desktop and VNC to it, use CLI when its available, I use ASTAP on Astroberry and its pretty good for stacking and alignment. It works on a Raspberry Pi4 so I have no doubt its really fast on that sort of hardware! Don't forget the upload/download time and bandwidth in that equation though.
  11. Image train / focusser flop ? It may only affect one corner that way? Just a thought.
  12. Hi, I had exactly the same issue with that adaptor when trying to mount my EQ5 on an EQ6 tripod, spoke to the supplier who said it was only specced for the HEQ5. So I did go the Fred Dibnah route and took a dremel to the inside face of the Geoptik. 10 minutes of gentle grinding and it fits snugly. Who is going to see the inside of the adaptor anyway
  13. The reducer aspect is still useful (if desired), the flattener aspect corrects the image distortion towards the edges of the frame, for a small sensor it will have no effect, but will cause no harm also! If it's like my ED80 the .85x Flattener/Reducer presents a 48mm thread, you probably need a 48mm/42mm (T thread) adaptor, https://www.firstlightoptics.com/adapters/astro-essentials-m48-to-t2-adapter.html but I would check with FLO The spacing to your sensor is critical, from the back of the Flattener/Reducer you need 55mm to the plane of the sensor. See this useful guide on the ZWO site: https://astronomy-imaging-camera.com/tutorials/best-back-focus-length-solutions-55mm.html
  14. It's a reference to the widest aperture available over the range of the zoom, typically more at the lower end of the zoom range, so in your example at 55mm it would be f4 and at 250mm it would be f5.6. All the smaller apertures are available at all zoom lengths, so f8 is available across the range of the zoom.
  15. I agree with @david_taurus83 you need to test this all out locally first, there is a learning curve! Not sure of the advantage of the Stellarmate app, you can connect directly to Astroberry via your web browser. Why would you need an app? And a leisure battery is a good idea, That's what I use with a case that incorporates sockets, fuses and a 5v regulator.
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