Which macro lens/diopter for Pentax K10D?

Discussion in 'Photography Equipment & Products' started by TwoTon, Jun 6, 2008.

  1. TwoTon

    TwoTon TPF Noob!

    Joined:
    Jun 6, 2008
    Messages:
    5
    Likes Received:
    0
    Can others edit my Photos:
    Photos OK to edit
    Hi everyone,

    I just bought my first DSRL, a Pentax K10D, as well as a SIGMA 70-300mm F4.0-5.6 DG APO.

    Since I love to photograph insects and small plants, I'd now like to know what equipment would allow me to get magnifications up to 4:1.

    I've perused many a photo instruction book, including Shaw's "Nature Photography Field Guide", and have come to the conclusion that either of the two following solutions may be best:


    1. A dedicated 150 mm (or 100 mm?) macro lens. Which ones are best one for the K10D? (3rd parties are fine)

    2. A 2-element diopter. Which ones are best one for the Sigma lens?

    Thank you very much in advance for your kind replies!


    Cheers

    TT
     
  2. tirediron

    tirediron Watch the Birdy! Staff Member Supporting Member

    Joined:
    Jul 8, 2005
    Messages:
    37,391
    Likes Received:
    10,665
    Location:
    Victoria, BC
    Can others edit my Photos:
    Photos OK to edit
    Just so I understand, you want to be able to photograph something so that the image on your sensor is four times life size? That's going to be a very expensive lens (a good 1:1 macro runs $400+). You can do it by stacking close-up lenses, but the resulting image quality is horrible.
     
  3. TamiyaGuy

    TamiyaGuy No longer a newbie, moving up!

    Joined:
    Jun 25, 2007
    Messages:
    1,078
    Likes Received:
    0
    Location:
    Chelmsford, UK
    Can others edit my Photos:
    Photos OK to edit
    I agree with tiredIron, a lens with a 4:1 reproduction ratio is not only going to be stupidly expensive, but also very rare. That basically means that a 6mm object will fill the camera's frame. A 1:1 repro ratio is fine for most applications, and you can always crop the image.

    If you really want to, you could get a 50 or 60mm macro lens (which, on its own, isn't that good for wildlife as you need to get closer to the insect) and get a set of extension tubes to boost the lens to 100-150mm. You'll be able to focus just as closely, but the magnification will be huge. However, the maximum aperture will decrease, and you might lose your camera's ability to autofocus.
     
  4. Stratman

    Stratman TPF Noob!

    Joined:
    Jul 15, 2007
    Messages:
    265
    Likes Received:
    1
    Location:
    St. Louis Missouri, U S A
    Can others edit my Photos:
    Photos OK to edit
    Tamron makes a 90MM macro that gets rave reviews. I have never heard a bad thing said about it. I don't have one, but want to get one SOMEDAY. Voitlander made a 125MM macro that has a legendary status, they're out of production now, but you can find them once in a while on eBay, or photog sites such as this one in the Buy and Sell section.
     
  5. usayit

    usayit No longer a newbie, moving up!

    Joined:
    Nov 15, 2003
    Messages:
    9,523
    Likes Received:
    344
    Location:
    North New Jersey, United States of America
    Can others edit my Photos:
    Photos OK to edit
    Yes... there are two Tamron's in fact.

    The 90mm f2.5 Macro Adaptall (1:2) is a known good macro lens. Unfortunately, it is a completely manual lens (predates digital). There is also 2x teleconverter designed to work with it to bring 1:1 macro. There are two threads with samples of mine.. just search under usayit. You'll need an adaptall K-mount adapter and know how to use that K10D with manual lenses.

    There is also a newer AF 90mm f2.8 Macro as well (1:1). No experience with it but I hear it is a good one as well:

    http://www.tamron.com/lenses/prod/90mm.asp


    As for a 4:1 macro... there is so much involved... The Canon MP-E 65 is capable but extremely expensive and extremely difficult to use. On top of the expensive lens, you'll need a very stable support, focusing rails, and a good macro flash.
     

Share This Page

Search tags for this page
k10d diopter
,
macro lens converter for pentax k10
,
macro lens for k10d
,

macro lens for pentax k10d

,

macro lens pentax k10

,
penax k 10 diopter
,

pentax diopter

,

pentax k10d diopter

,
what macro lens for pentax k10
,

whst lense fir close ups with pentax k10d