Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,530   Posts: 1,572,477   Online: 1100
      
Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: 30mm macro?

  1. #1
    winjeel's Avatar
    Join Date
    Mar 2009
    Location
    central Japan
    Shooter
    35mm
    Posts
    92

    30mm macro?

    I've seen the news that Sony has a 30mm macro lens either coming out or came out. But, I can't help but wonder, what would you use it for? To me, long the better, not wider!
    Film and digital; best of both worlds. JapanesePhotos.Asia.

  2. #2
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
    Shooter
    Multi Format
    Posts
    16,394
    Images
    148
    Depends what format it's being made fore, Sony don't make film cameras, 30mm on the Sony SLR's would be the digital equivalent of a 50mm macro lens on 35mm.

    Macro lenses come in various forms and it really depends what's being photographed, some are longer than a standard lens 80/90mm, others 50/60mm, while for more extreme close up they can be shorter still 28mm/40mm, any shorter and they tend to be called Micro lenses. I've used an 8mm Micro lens on a Pentax for scientific work.

    Ian

  3. #3

    Join Date
    May 2007
    Shooter
    Med. Format RF
    Posts
    225
    30mm on a full frame A900 would be 30mm, Ian....

  4. #4

    Join Date
    Mar 2008
    Location
    Yorkshire, UK
    Shooter
    Multi Format
    Posts
    331
    The shorter the focal length, the more magnification you get for any given length of extension. I use Zuiko 20 and 38mm on bellows, the working distance is very very small, but the magnification is very very high.

  5. #5

    Join Date
    Feb 2008
    Location
    Greece
    Shooter
    35mm
    Posts
    1,322
    Quote Originally Posted by wayne naughton View Post
    30mm on a full frame A900 would be 30mm, Ian....
    This lens will be 30mm on the full frame A900, but will give you a round picture. It's an APS lens, just like there are Canon/Nikon lenses specifically for APS cameras. The equivalent to 135 is 45mm IIRC.

  6. #6
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
    Shooter
    Multi Format
    Posts
    16,394
    Images
    148
    Quote Originally Posted by wayne naughton View Post
    30mm on a full frame A900 would be 30mm, Ian....
    Only when the 30mm is designed for a full frame camera

    The APS version may still be usable on a full frame on extension tubes/bellows as coverage increases as the extension is increased.

    Ian

  7. #7

    Join Date
    May 2007
    Shooter
    Med. Format RF
    Posts
    225
    Whoops.... my mistake..... grin.

  8. #8

    Join Date
    Jul 2007
    Location
    Netherlands
    Shooter
    Medium Format
    Posts
    5,686
    No mistake.
    A 30 mm is a 30 mm is a 30 mm. No matter how small or large the format, and not matter whether it fills that format or not.

    Especially when macro is concerned, a lens' focal length matters more than an angle of view.
    Try to do 1:1 with a 1200 mm lens. Very, very hard. No matter whether on APS or on 8x10".
    Try to do 10:1 with a 30 mm lens. Easy! On APS, Full frame 35 mm format, MF, LF.

  9. #9
    winjeel's Avatar
    Join Date
    Mar 2009
    Location
    central Japan
    Shooter
    35mm
    Posts
    92
    Actually, slightly off topic, but thinking about the difference between APS-C and 35mm, has there ever been any APS-C (film) slr's made? If not, why not?
    Film and digital; best of both worlds. JapanesePhotos.Asia.

  10. #10
    DWThomas's Avatar
    Join Date
    Jun 2006
    Location
    SE Pennsylvania
    Shooter
    Multi Format
    Posts
    2,261
    Images
    67
    Quote Originally Posted by winjeel View Post
    Actually, slightly off topic, but thinking about the difference between APS-C and 35mm, has there ever been any APS-C (film) slr's made? If not, why not?
    Yes there were several, but they never quite caught hold, partly I suspect because the full array of films available for 35 mm never made it to APS.

    DaveT

Page 1 of 2 12 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin