Results 1 to 9 of 9

Thread: Astrophotography

  1. #1

    Default Astrophotography

    Does it require expensive lens?
    I think it will but is there anyone who can clarify?

  2. #2
    Senior Member
    Join Date
    Jan 2006
    Location
    West Legion
    Posts
    7,751

    Default Re: Astrophotography

    Quote Originally Posted by Aqillies View Post
    Does it require expensive lens?
    I think it will but is there anyone who can clarify?
    no... some use a simple 50mm f1.8 to get their job done... yes if you are talking about those super-tele

  3. #3
    Senior Member
    Join Date
    Jan 2002
    Location
    Northwest
    Posts
    5,011

    Default Re: Astrophotography

    For star trails and large constallations (Orion, for example), or even the milky way itself, normal camera lenses, from wide to tele, should work well.

    For the moon, some people have good success using 300 ~ 600mm telephoto and sometimes with 2x teleconverter. The moon is very bright, so usually a single exposure of around 1/100 ~ 1/250 sec is adequate.

    You can also use a telescope with SLR or digiscoping for the moon.

    For planets and some galaxies and nebulae, higher magnification is needed, so a telescope and appropriate coupling for digicams or DSLRs is required. Also, other techniques/equipment such as tracking/guiding and image stacking is required.

    Most consumer digicams and DSLRs include a IR filter in front of the sensor, which reduces the sensitivity to certains wavelengths that are important for astrophotography, so some users would modify their cameras to remove the IR filter.

    There are also specialised astrophotography imagers.

    In short, depending on what you want to shoot, you can spend little using existing equipment or literally thousands on specialised equipment to get a shot that you can easily download from the internet...
    Last edited by roygoh; 29th August 2007 at 08:11 AM.
    As complexity rises, precise statements lose meaning and meaningful statements lose precision.

  4. #4

    Default Re: Astrophotography

    Anyone have examples of amateur astrophotography?

  5. #5
    Member
    Join Date
    Nov 2006
    Location
    Toa Payoh
    Posts
    158

    Default Re: Astrophotography

    Quote Originally Posted by AndreiR View Post
    Anyone have examples of amateur astrophotography?
    http://forums.clubsnap.org/showthread.php?t=283564

    and

    http://www.singastro.org/
    Canon 20D,400D,5QD | 17-40mm F4L | 50 f1.8 |100 f2 | 200 f2.8L | 70-210 f3.5-4.5 | 580EX

  6. #6
    Senior Member
    Join Date
    Oct 2003
    Location
    http://360.itcow.com
    Posts
    2,363

    Default Re: Astrophotography

    this will be useful too.

    http://earth.google.com/sky/skyedu.html

  7. #7
    Member
    Join Date
    Feb 2007
    Location
    Woodlands
    Posts
    765

    Default Re: Astrophotography

    Actually astrophotography doesn't really require expensive lenses to do the job. But a good tripod is a most. Best if it comes with motor drive to track the sky.

  8. #8

    Default Re: Astrophotography

    Hmm,what about those lenses that can allow u to take pics of the moon crater at high resolution?

  9. #9
    Senior Member giantcanopy's Avatar
    Join Date
    Feb 2007
    Location
    SG
    Posts
    6,232

    Default Re: Astrophotography

    The man said it all.

    Quote Originally Posted by roygoh View Post

    For the moon, some people have good success using 300 ~ 600mm telephoto and sometimes with 2x teleconverter. The moon is very bright, so usually a single exposure of around 1/100 ~ 1/250 sec is adequate.

    You can also use a telescope with SLR or digiscoping for the moon.
    With a 600mm setup i can see the craters, but as to taking moon craters at high resolution ..
    i do not know how high res / details u want but an even longer one will definitely do the trick

    Ryan

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •