Results 1 to 10 of 10

Thread: Can TCs work on Sigma Macro lens?

  1. #1
    Member
    Join Date
    Dec 2002
    Location
    Tampines
    Posts
    602

    Default Can TCs work on Sigma Macro lens?

    Hi there,

    i am thinking of getting the 105mm macro from Sigma, and contemplating getting a 2x APO Sigma TC (to increase my working distance) as well..

    Just a quick question,
    will using the TC still allow me to focus at infinity, retain metering and AF?

    Thanks!

    Regards

  2. #2
    Senior Member
    Join Date
    Jan 2002
    Location
    Behind a lens
    Posts
    2,312

    Default

    Quote Originally Posted by Wryer
    Hi there,
    Just a quick question,
    will using the TC still allow me to focus at infinity, retain metering and AF?
    The above is all possible with a TC.

    A TC will affect the image quality by a bit. Maybe you should avoid using it unless absolutely neccessary.

  3. #3
    Member
    Join Date
    Dec 2002
    Location
    Tampines
    Posts
    602

    Default

    Quote Originally Posted by binbeto
    The above is all possible with a TC.

    A TC will affect the image quality by a bit. Maybe you should avoid using it unless absolutely neccessary.

    I see...thanks!
    With a budget of $200, what kind of TC should i be looking at? (1st hand or 2nd hand doesnt matter )

    Regards!

  4. #4

    Default

    Quote Originally Posted by Wryer
    I see...thanks!
    With a budget of $200, what kind of TC should i be looking at? (1st hand or 2nd hand doesnt matter )

    Regards!
    Check http://www.sigmaphoto.com/html/pages/ConvComptChart.htm. Dun think the sigma one is compatible with the 105mm. At 200 u are probably limited to the mc7 series. U may want to look at a kenko pro (300+) but do test it in the shop first as my mc7 doesn't work with my 105mm.

  5. #5
    Member
    Join Date
    Dec 2002
    Location
    Tampines
    Posts
    602

    Default

    Quote Originally Posted by xdivider
    Check http://www.sigmaphoto.com/html/pages/ConvComptChart.htm. Dun think the sigma one is compatible with the 105mm. At 200 u are probably limited to the mc7 series. U may want to look at a kenko pro (300+) but do test it in the shop first as my mc7 doesn't work with my 105mm.

    you mean the sigma TC are not compatible with the sigma 105mm how strange...

    Looks like i need to look at some sample images of sigma 105mm with kenko TCs..but does the kenkos retain aF, metering?


    Thanks xdivider!

  6. #6

    Default

    Quote Originally Posted by Wryer
    you mean the sigma TC are not compatible with the sigma 105mm how strange...

    Looks like i need to look at some sample images of sigma 105mm with kenko TCs..but does the kenkos retain aF, metering?


    Thanks xdivider!
    Think its bcos of some portruding portion which will interfere with the lense. I have read success stories of pple using the kenkos with AF all that even VR, but i suspect it depend on lense and body combo too. Always bring down ur stuff to try at the shop.

  7. #7

    Default

    It's possible if you get an extension tube to act as a spacer between the TC and the Sigma 105. Just tried it and took some shots.

  8. #8

    Default

    kenko TCs can work with 105mm Sigma. I've tried them before. The 2X TC with 105mm Sigma can produce very impressive pictures, unless u r a perfectionist who wants critically sharp pictures.

  9. #9
    Member
    Join Date
    Dec 2002
    Location
    Tampines
    Posts
    602

    Default

    Ic...
    xdivider: Im using a F80, and yes, i will bring my setup to try on the spot!
    Thanks!

    SS: u mean it became a TC--tube--lens combo? which TC and tube were you using? thanks..

    mylau: looks like kenko might be the way to go for me! any idea how much does the keno 2x cost new/used?

    thank u guyz...

    just wondering, is the difference in working distance between a 90mm tamron and 105mm significant?

    Thanks!!

  10. #10

    Default

    Quote Originally Posted by Wryer
    SS: u mean it became a TC--tube--lens combo? which TC and tube were you using? thanks..
    I was using Sigma 2X TC -- Elcheapo Panagor 21mm extension tube -- 105mm f2.8 macro. Can AF, but I prefer to MF with the Sigma macro lens.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •