what do these numbers on my lens mean??

Discussion in 'Photography Beginners' Forum' started by juturna, Jun 20, 2009.

  1. juturna

    juturna TPF Noob!

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    Hello! I'm new here! I've had my Sony Cybershot DSC H50 for a while now.

    My camera has a Carl Zeiss lens.

    However, there are some numbers on the lens, and I have no idea what they mean!

    2,7-4,5/5,2-78

    Does anyone have any idea what these numbers mean?

    Also, I've been wanting to get some filters, and my camera came with a lens flower hood and the attachment for the flower hood.....but I'm not sure what size filter to get, and if it goes attached to the attachment for the flower hood or what?

    Please help!:confused:
     
  2. musicaleCA

    musicaleCA TPF Noob!

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    Don't know what the numbers mean, but a simple Google search turned this up:

    Blame Sony for their poor choice of size. Actually, it's such a minor difference, I'd bet it is a ploy to squeeze more money out of their consumers. *sigh*
     
  3. a.rilley

    a.rilley TPF Noob!

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    The filter does not attach to the same place as the hood. It screws onto the front of the lens, but not all lenses have the option. To figure out the diameter/size just take your camera/lens with you when you go to buy the filter and see which ones fit. You can also ask the salespersons.
     
  4. musicaleCA

    musicaleCA TPF Noob!

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    *sigh* No, the hood doesn't attach to the same place as the filter. That doesn't make it any less true that the filters have to be in a non-standard size of 72mm. The complete quote:

    SONY CYBER-SHOT DSC-H50/B Review, SONY CYBER-SHOT DSC-H50/B Price, SONY CYBER-SHOT DSC-H50/B Feature, Amazing lens, Spectacular photos, easy to use - MouthShut.com
     
  5. Jaszek

    Jaszek No longer a newbie, moving up!

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    t
    the numbers 2.7-4.5 are the aperture. The 5.2-78 are the focal length. the aperture is 2.7 at 5.2mm and and 4.5 at 78mm. The aperture varies due to the zoo, of the lens. If you have no idea what these term mean check out my signature. Also some of you might think that 5.2 is very wide. It is wide but it's so low b/c P&S cameras have a very small sensor so that would be appropriate for that camera. the 5.2 mm would be between 18-24mm on a dSLR (dont feel like checking out the crop factor on that camera, im tired from work :p). So yea, check out my sig since you need to know these terms of you are asking this question.
     
  6. Sachphotography

    Sachphotography TPF Noob!

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    If you need filters go to Ebay. I have used some no name brand filter off of Ebay and have been surprised at there quality( a good thing) 72mm filter are not expensive at all. You can get a either a Uv filter a polarizer or a Diffusion filter for under 20 each. Just look it up. And us Paypal. You have nothing to worry about with paypal. They will back you up if anything happens. Also don't be worried about buying from Overseas. It usually ships pretty quick. I bought a UV filter from China for 2.50 and it was here within 5 days.

    Daniel Sach
    Sachphotography Fine Art Photography The homepage of Daniel Sach and his photography Company
     
  7. farmerj

    farmerj TPF Noob!

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    You don't attach the hood to the lens.

    You actually attach it to the ring around the lens. There are no threads on the lens.

    Even with the doubler attachment, the lens zooms inside the attachment. Nothing physically attaches to the lens itself.
    Sony DSC-H50: Digital Photography Review


    Most of the super-zoom Sony's had a 6X crop factor. So it's equal to about a 31mm to about a 468mm lens on a 35mm FF body.


    I bought the H9 prior to my D90. Worst investment I made into photography. Should have just spent the money on a Xsi or D40 to begin with and start building lens kits
     
    Last edited: Jun 21, 2009

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