Effects of lens haze

Discussion in 'Medium Format' started by anthonymarsh, Aug 19, 2021.

  1. What are the effects of moderate lens haze upon black and white photography?
     
  2. Sandy Vongries

    Sandy Vongries Administrator Staff Member

    Haven't got any Monochrome, but around 5 years ago I used a hazy Leica 35mm Summaron 3.5 on an A 12 Leica Mount with a Rocoh GXR. Indoor photos were fine, outdoor had a slight Haze / Fog. I can post a sample if you wish.
     
  3. Leica "glow" effect on a transmogrified "Zorki"
    Leica.jpg
     
  4. m42dave

    m42dave Dave E.

    Haze in general has the effect of reducing contrast due to light scattering. Slight haze on one surface will not necessarily affect the usability of a lens, but it might if it's on multiple surfaces of a more complex lens. You might not notice it much if it's just around the edges.

    Sometimes, what appears to be haze (caused by oil or grease) can actually be the optical cement degrading in cemented lens groups.
     
    Sandy Vongries likes this.
  5. DB9B04AF-E609-4313-B1B7-37D75F5271F7.jpeg
    Above is an example of an uncoated Leica Summar 5cm f:2.0 (1934) with milky haze on the elements on each side of the aperture.
    Below is the same subject after cleaning:
    94C12E5F-2679-4F79-B226-3762C2A972A9.jpeg
    not black and white, but the glow would be the same.
    Convert the images to BW if that is important.
     
    Last edited: Aug 19, 2021
    peter_fowler likes this.
  6. SCL

    SCL

    Light haze loss of contrast. Heavy haze add distortion to the loss of contrast. IMHO in all cases of moderate haze, it is worth getting it cleaned unless you like unwanted "special effects".
     

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