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Thread: Problems of Wide conversion lens

  1. #1
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    Default Problems of Wide conversion lens

    I have bought a 0.45x wide conversion lens
    attach it to my 18-55mm lens
    the pictures a little similar to fish eye's images~~
    but cannot focus all the things
    as i know~wide angle lens hav greater dop~~
    so how to solve my mistake?


    and vignetting at 18mm T.T

    and look for a lot of threads
    it's seem not so worthy to buy
    what do u think? sell it?

    i need a wide angle lens for landscape~can guide?

  2. #2
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    Default Re: Problems of Wide conversion lens

    Never used a wide converter before. As for landscape lens I'm using the Sigma 10-20mm veri wide

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    Default Re: Problems of Wide conversion lens

    Quote Originally Posted by photatographer View Post
    Never used a wide converter before. As for landscape lens I'm using the Sigma 10-20mm veri wide
    how much is about with ur lens?

  4. #4
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    Default Re: Problems of Wide conversion lens

    Got it for $950 new for the alpha mount. Second hand ones cost around $450-$600 at buy and sell.

  5. #5
    Moderator catchlights's Avatar
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    Default Re: Problems of Wide conversion lens

    Quote Originally Posted by KCYong View Post
    I have bought a 0.45x wide conversion lens
    attach it to my 18-55mm lens
    the pictures a little similar to fish eye's images~~
    but cannot focus all the things
    as i know~wide angle lens hav greater dop~~
    so how to solve my mistake?


    and vignetting at 18mm T.T

    and look for a lot of threads
    it's seem not so worthy to buy
    what do u think? sell it?

    i need a wide angle lens for landscape~can guide?
    treat it like you have a Holga Lens on your DSLR
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  6. #6
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    Default Re: Problems of Wide conversion lens

    Quote Originally Posted by catchlights View Post
    treat it like you have a Holga Lens on your DSLR
    Then do custom tone map to simulate cross processing and remember to add the light streaks

  7. #7
    Senior Member denniskee's Avatar
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    Default Re: Problems of Wide conversion lens

    1) wide angle converter lens are design for smaller sensor, like compact digital cameras and video cameras.

    2) so far, what i have tested, oly 0.7x wcon and the Kodak SCHNEIDER-KREUZNACH XENAR 0.7X is best in the market with their 4 elements design.
    most in the market has only 2 elements, has the bad image quality.

    u can refer to this thread for other converters on compact cameras

    http://www.clubsnap.com/forums/showt...ngle+converter
    Last edited by denniskee; 6th May 2009 at 12:23 PM.
    photography makes one sees things from all angles.

  8. #8

    Default Re: Problems of Wide conversion lens

    Quote Originally Posted by KCYong View Post
    I have bought a 0.45x wide conversion lens
    attach it to my 18-55mm lens
    the pictures a little similar to fish eye's images~~
    but cannot focus all the things
    as i know~wide angle lens hav greater dop~~
    so how to solve my mistake?


    and vignetting at 18mm T.T

    and look for a lot of threads
    it's seem not so worthy to buy
    what do u think? sell it?

    i need a wide angle lens for landscape~can guide?
    Distortion has a lot to do with the converter design (and usually price). Can't do much if the converter you now have has quite a bit of distortion. Only solution is to compose around this limitation.

    Usually , sharpness in on the centre only. It helps to stop down (and I mean real down like f11 or higher) the aperture, but even then it depends on quality of the converter. So solution is to stop down (probably use a tripod) and/or compose such that area of interest is mainly in the center.

    Vignetting at 18mm, no solution to that, its a physical limitation. Either zoom out a little to avoid, crop or compose around it.

  9. #9
    Senior Member B-setting's Avatar
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    Default Re: Problems of Wide conversion lens

    but the kit lens at 18mm is wide enough already?

  10. #10
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    Default Re: Problems of Wide conversion lens

    For me after playing with my 18-55 a period of time~
    it is not enough for me for landscape shots already~~~

    erm thx for helps
    and need more conmments of shooting better landscapes

    Sorry what is "Holga Lens" ?

    and who people hav any wide angle lens?
    introduce urs here
    the prices and the quility ^^thx

  11. #11
    Senior Member zoossh's Avatar
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    Default Re: Problems of Wide conversion lens

    Quote Originally Posted by KCYong View Post
    For me after playing with my 18-55 a period of time~
    it is not enough for me for landscape shots already~~~

    erm thx for helps
    and need more conmments of shooting better landscapes

    Sorry what is "Holga Lens" ?

    and who people hav any wide angle lens?
    introduce urs here
    the prices and the quility ^^thx
    in the first place, what is your camera body? compact cam or DSLR? which brand and model?

    this is my half-way done thread on lenses... got a bit on wide angle lenses on 1.5x crop factor DSLR
    http://www.clubsnap.com/forums/showthread.php?t=461948

    holga is a classic hong kong made toy camera. it is used to describe an effect that appears as if you are shooting through a window pane, showing distortion, partial area blurring, light fall-off or various defects of poor optical quality but was seen as an artistic alternative. this is often used for creative urban still or candids that often describe a mood and sometimes motion and where details are not that important, but not that suitable/commonly used for standard landscape and portraits where details are essential elements.
    Last edited by zoossh; 7th May 2009 at 12:17 AM.

  12. #12
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    Default Re: Problems of Wide conversion lens

    thx for ur sharing ^^

    mine is d60 with 18-55 only

    and hope CSer can share what wide lens u r using and how do take ur landscape shots

    thx

  13. #13
    Senior Member zoossh's Avatar
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    Default Re: Problems of Wide conversion lens

    Quote Originally Posted by KCYong View Post
    thx for ur sharing ^^

    mine is d60 with 18-55 only

    and hope CSer can share what wide lens u r using and how do take ur landscape shots

    thx
    the best is nikkor 14-24mm FX or 12-24mm DX at a price. widest rectilinear is sigma 10-20mm DX, anything wider is fisheye for nikon bodies. best budget recommended is the new tokina 11-16mm f/2.8 DX.

    apart from my thread above, you can also read KRW
    http://www.kenrockwell.com/tech/how-...ide-lenses.htm

    your question on landscape is quite vast. techniques varies and you got to be specific. if your concern is wide angle lens + night-citiscape, try good timing/lighting (evening) and long exposure. basic composition with a good and big subject of interest is also paramount. the rest got to ask the real experts who really does nightscape as i dun.

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