Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi all! We have been experiencing an issue on site where threads have been missing the latest postings. The platform host Vanilla are working on this issue. A workaround that has been used by some is to navigate back from 1 to 10+ pages to re-sync the thread and this will then show the latest posts. Thanks, Mike.
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Sigma Lens & 1.4 Converter

  • 25-02-2010 12:07pm
    #1
    corkandproud
    Registered Users Posts: 516 ✭✭✭


    Just wondering if a 1.4 converter will work with a Sigma 70-200 2.8 lens.

    Will there be any loss of functionality?


Comments

  • #2
    DaireQuinlan
    Registered Users, Registered Users 2 Posts: 6,703 ✭✭✭DaireQuinlan


    make and model of camera, make of 1.4 converter, is lens AF motor in lens or not etc etc etc.

    details details details :D


  • #3
    PaulieC
    Registered Users, Registered Users 2 Posts: 6,196 ✭✭✭PaulieC


    A sigma 1.4x converter will work with the Sigma f2.8 Lens and will reduce the brightness of the lens by 1 stop, making it an F4.0 lens. The Sigma 2.0x will also work with the lens, reducing it by 2 stops, making it a 140-400 f5.6 lens.
    All functionality is unaffected


  • #4
    corkandproud
    Registered Users Posts: 516 ✭✭✭corkandproud


    sorry...

    Canon bodies
    Canon Converter
    Sigma Lens


Advertisement