Photographing the Sun

Discussion in 'Beyond the Basics' started by boblalux, May 17, 2009.

  1. boblalux

    boblalux TPF Noob!

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    I wish to photograph the Sun. Can I do this by reducing the strength of the lighting by using 2 semi-crossed polaroid filters?
     
  2. KmH

    KmH Helping photographers learn to fish Supporting Member

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    Do you just want a blob of light or do you want some detail like sunspots?
     
  3. Josh66

    Josh66 Been spending a lot of time on here!

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    I'm interested in this too...

    I have a pair of solar binoculars (Coronado BinoMite II), I'd like to find the filter they have on them (white light solar filter, pretty much looks like a mirror; I'd also be interested in other solar filters too, Hα maybe) for my lenses. No luck so far.

    Something like this, but for a camera lens.
     
    Last edited: May 17, 2009
  4. dxqcanada

    dxqcanada Been spending a lot of time on here!

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  5. Battou

    Battou No longer a newbie, moving up!

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    I'd send a E-mail to Hoya offering it as a suggestion if they can not be found.
     
  6. Josh66

    Josh66 Been spending a lot of time on here!

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    Thanks for the link. Now that I know the part number to look for, maybe I can find one.

    Not a bad idea, but I wonder how large of a market there would be for this? They might not see enough money in it to start production...
     
  7. Battou

    Battou No longer a newbie, moving up!

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    That is a destienct possibility but, if no one shows an interest in something like that to beginwith the odds of it ever happining drop dramatically.
     
  8. KmH

    KmH Helping photographers learn to fish Supporting Member

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    Solar filters for telescopes are pretty specialized. You can get them so they transmit very specific wavelengths of light like just the hydrogen-alpha line.

    But that is to see details of specific parts of the Suns upper atmosphere.

    If I want an image of the current sunspot activity I just project an image of the Sun onto a dark background through a pinhole and photograph that.

    By adjusting the pinhole to background distance I can control the size of the Suns image. That's essentially what they do at the McMath Solar Telescope on Kitt Peak. Their projected image is 3 feet across though.
     
  9. LarryD

    LarryD TPF Noob!

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    There are plenty of good quality welders glass available to shoot through..
     
  10. Dwig

    Dwig TPF Noob!

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    This isn't something a beginner could pull of, but it is something to strive towards:

    The Online Photographer: Sic Transit

    the post contains a link to a source for the appropriate filters.
     
  11. Joves

    Joves No longer a newbie, moving up!

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    Thousnad Oaks is the best out there. I took this shot with my Coolpix 995 a few year agot through my telescope using a Thousands Oaks filter. Taken during an eclipse and I was luck to even get that shot that day because, the wind was bad as usual in Flagstaff.
    [​IMG]
     
  12. astrostu

    astrostu I shoot for the stars

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    I have a Thousand Oaks filter, too.
     
  13. Josh66

    Josh66 Been spending a lot of time on here!

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    Joves, what focal length telescope was that taken with?
    (Just trying to get an idea what I could expect from my telescope.)

    The moon is roughly the same apparent size as the sun in the sky, right? Would it be safe to assume that the level of magnification I would get with the sun would be similar to photographing the moon with my telescope?
     
  14. astrostu

    astrostu I shoot for the stars

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    Yes.
     
  15. Garbz

    Garbz No longer a newbie, moving up!

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    Short answer: Don't!

    Solar filters are very specific for a reason, much of what is emitted by the sun which is capable of damaging eyes is not in the visible spectrum. Polarisers are spectrally variant. The ones for photography do a great job for the visible spectrum but there is little data to how it handles infrared or UV light. This means when you look through them your pupils may dilate while not realising the very thing that could cause blindness has not been reduced. There have been plenty of cases of people going blind looking at solar eclipses by using photographic ND filters, or looking through floppy discs or that sort of thing.

    Do yourself a favour and get or build a solar filter, don't risk your eyesight.

    The camera should be fine.
     

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