Helpful Posts Helpful Posts:  0
Results 1 to 3 of 3

Thread: MTF over 90% on zoom for Canon @f8

  1. #1
    arith's Avatar
    Join Date
    Sep 2009
    Location
    Burton on Trent, UK
    Posts
    4,789
    Real Name
    Steve

    MTF over 90% on zoom for Canon @f8

    I cannot find MTF for this lens;

    Tamron 17-50mm F2.8 XR Di II LD Asp Canon Mount

    and I want one over 90% @f8 with similar range and up to 13.6mm (10lp solid and dashed close) or a prime less than or equal to 20mm with good flare performance.

    I'm thinking long term here, I'm not going out and getting one tomorrow but would like to know alternatives to Canon.

  2. #2
    John C's Avatar
    Join Date
    Mar 2009
    Location
    Atlanta, Georgia
    Posts
    157

    Re: MTF over 90% on zoom for Canon @f8

    I think this is the lens you are referring to:
    http://www.lenstip.com/18.1-Lens_rev...roduction.html
    Seems like a fairly good lens.

  3. #3
    arith's Avatar
    Join Date
    Sep 2009
    Location
    Burton on Trent, UK
    Posts
    4,789
    Real Name
    Steve

    Re: MTF over 90% on zoom for Canon @f8

    Good site, but I have a few concerns about the lens, chromatic aberration ect. Also it would be easier if I could just see an MTF chart although I can see a 50lp reduced chart never actually look beyond 20lp per mm. cheers

Posting Permissions

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