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Sunshine

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Posts posted by Sunshine

    Mobile phone camera down the eyepiece.

    in Getting Started With Imaging

    Posted · Edited by Sunshine

    Getting handheld phone images up to eyepiece can be very tricky amd requires patience and the right combination of eyepiece and camera settings. My eyepieces are fairly wide angle and have a large lens up top which makes it easier to align the phone camera but one must remember that the sensor on the phone camera is tiny and alignment of image coming from eyepiece with a tiny sensor can be a pain. If shooting handheld without a phone adapter, i form a ring with my index finger and thumb then rest this ring on the eyepiece then rest the phone camera centered over the ring. This helps stabilize the phone above the eyepiece   While I use my other three fingers as support against the side of the eyepiece so I can slowly raise and lower the camera above the eyepiece to get image centered, zooming in a bit also helps to fill the FOV on the camera screen instead of it appearing as though the image is at the bottom of a cylinder. Once image scale is achieved i then gently tap the image on the phone screen to achieve focus and exposure, one focus is set, one must quickly and repeatedly tap the shutter, its lucky imaging really, you may shoot twenty images and get one decent one. Below is an example of what I can do handheld with practice and patience through much trial and error but I now can repeat these results fairly consistently. If one zooms in one can see it is not as sharp as it seems, it is about as good as I can do handheld which I think is quite good considering the difficulties involved.

    38CD1E51-37DE-4584-9669-416AEE3E4D33.jpeg

    • Like 3

    Jupiter shadow transits and smaller scopes

    in Observing - Planetary

    Posted

    I believe what you're describing can be attributed to poor seeing, a transit shadow is a small target and would appear more dark and refined in larger scopes. In my time with my 100mm I have only seen a handful of transits under good seeing, though I don't know what the limit of "small" scopes is you're referring to, I have managed to see a sharp black pinpoint on occasion and not so sharp on others.

    • Like 1
    • Thanks 1

    The Troolshaws

    in Imaging - Deep Sky

    Posted · Edited by Sunshine

    7 hours ago, Rodd said:

    You don’t see the curly headed troll with the big nose?

    I do now! It’s one big nose! reminds me of a character from a children’s show I used to love as a wee lad.

    00785CAC-E16F-456E-B2BF-4445AA46ABF1.webp

    • Like 1

    Show us your set up in action at night.

    in The Astro Lounge

    Posted

    2 hours ago, Nigella Bryant said:

    A rare night excursion for me last night. I planned to image Jupiter and the night after the clouds dispersed was crisp. Io transits of Jupiter's red spot was particularly fascinating. Shot of dome with Jupiter overhead. Lovely purple colour from my mobile phone camera, lol.

    20230922_022653.jpg

    You just couldn’t help but shoot an image of your dome in Cal-k 😄

    • Haha 3
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