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Thread: I am looking for a wide angle zoom lens for my Pentax K5

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    Member trick10's Avatar
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    Post I am looking for a wide angle zoom lens for my Pentax K5

    Hello, I am new to this Forum and not sure how things work yet, however, I have a new K5 that I just purchased without a lens as I believe that while the Kit lens (18-55) is ok there are a lot better lenses available around this size. I already have a Pentax-F SMC 1:4-5.6 35-80mm and also a Pentax-F SMC 1:4.5-5.6 100-300mm (Both autofocus lenses) from my Mz5-n Film camera. These lenses seem to work fine on the K5.
    I understand that these lens need to be multiplied by 1.5 to indicate their trye size when fitted to my K5.
    Therefore, am I on the right track to think I require something like a 17-70 Sigma or Tamron to fill the void of the wider angle?
    Which of these is better?
    I was also thinking I really need a wider aperture and am considering the 2.8 in one of these choices.
    I do not have a lot of experience in the Photography world and would appreciate any comments (positive or negative) about my equipment and/or ideas.

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    It's all about the Light!
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    Kym's Avatar
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    I have the Sigma 10-20 for my landscape work, http://www.sigmaphoto.com/shop/10-20...x-dc-hsm-sigma
    You can go wrong with that for landscape as many will attest to here on AP.

    I use a Tamron 28-75 f/2.8 for may 'walk around'.

    For prime options...
    I have an older Pentax 50mm f/1.7 SMC manual) which can be had from Ebay for $100.
    I also have a Pentax 35mm f/2.4 http://www.dpreview.com/news/1009/10...pentax35mm.asp brilliant for the price.

    Yes, the crop factor is 1.5. The focal length remains the same, but the effective FL is 1.5 greater.
    See: http://www.ausphotography.net.au/for...vs_Crop_Factor for an explanation
    regards, Kym Gallery Honest & Direct Constructive Critique Appreciated! ©
    Digital & film, Bits of glass covering 10mm to 500mm, and other stuff



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    on the Sigma 10-20. Must be one of the best in this class. Go and check one out.
    Cheers, Paul.
    Canon 50D w BG l Nifty Fifty l Sigma 10-20 f4-5.6 l Sigma 24-70 f2.8 l EF 100mm f2.8 USM Macro l EF 300 f4L IS USM l EF 1.4X ll TC l 430EXII l Vanguard Alto Pro 263 w BH100 l Manfrotto 680B w 234RC l Lowepro Bags.l Sigma EM-140 Ring Flash.

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    Administrator ricktas's Avatar
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    Yep,the sigma 10-20 is a wonderful bit of kit for a cropped sensor camera.
    "It is one thing to make a picture of what a person looks like, it is another thing to make a portrait of who they are" - Paul Caponigro

    Constructive Critique of my photographs is always appreciated
    Nikon, etc!

    RICK
    My Photography

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    Tokina 12-24 aint shabby

    Truth is almost all UWA are good, it's their primary use
    Darren
    Gear : Nikon Goodness
    Website : http://www.peakactionimages.com
    Please support Precious Hearts
    Constructive Critique of my images always appreciated

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    Member crf529's Avatar
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    Depends how wide you want to go? 10mm is much wider than 12mm, and 8mm is even wider again than 10mm...

    The 8-16mm and 10-20mm Sigma are both great lenses for our pentax crop sensors. I personally can't split them, so at this point in time I have a bunch of cash but neither lens haha.

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    Thank you for your feedback. I have now purchased a 17-70 Sigma and so far it appears fantastic. Mind you anything new in photography is exciting to me.
    I'm planning trip to central australia in september/october and hope to digitally bring central australia home with me. I am hoping the 17-70 Sigma is the correct choice for my best option fr this adventur.
    Again, thank you, I think this site is bloy fabulous, well done Ricktas.
    Pentax K5, Pentax 35-80, Pentax 100-300, Sigma 17-30 Macro

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