uforias's reviews

  • Sigma 85mm f/1.4 EX DG HSM

    3 out of 10 points and not recommended
    Good Optics
    Inconsistent Auto Focus

    Unfortunately another disapointment with Sigma Quality Control. They have ruined an optical excellent product due to inconsistent Auto Focus. At least with Canon gear, you better stay away from Sigma Lens. I have to compensate from -5 micro adjustment for up 1 meter distance to almost +20 on the worst scenario for longer distances. Furthermore, even microadjusted the keeper rates are below 25% because the AF isn't consistent.

    reviewed October 24th, 2010 (purchased for $1,250)

  • Sigma 50mm f/1.4 EX DG HSM

    3 out of 10 points and not recommended
    Good Optics
    Inconsistent Auto Focus

    Unfortunately another disapointment with Sigma Quality Control. They have ruined an optical excellent product due to inconsistent Auto Focus. At least with Canon gear, you better stay away from Sigma Lens. I have to compensate from -5 micro adjustment for up 1 meter distance to almost +20 on the worst scenario for longer distances. Furthermore, even microadjusted the keeper rates are below 25% because the AF isn't consistent.

    reviewed October 24th, 2010 (purchased for $600)

  • Samyang/Rokinon 14mm f/2.8 IF ED UMC

    3 out of 10 points and not recommended
    Cheap
    Unsharp - Too much Distortion - Huge Vigneting - Low Contrast

    I have bouth this lens after reading a few very positive reviews regarding its performance comparing to i.e. Canon 16-35mm f/2.8 II, which I own. Unfortunately I have been able to prove myself that these so called reviews are not true. The only true review that I have seen from this lens is image quality tests from http://www.the-digital-picture.com/ and Ken Rockwell review. My findings go in line with these two tests. Too much distortion, huge vigneting and poor contrast; Canon 16-35mm f/2.8 II blows this lens away wide open in terms of image sharpeness. If you are on a budget, this lens might be a solution, otherwise avoid it.

    reviewed February 22nd, 2014 (purchased for $350)