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Thread: Rodenstock 23mm HR Flare

  1. #1
    Senior Member Steve Hendrix's Avatar
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    Rodenstock 23mm HR Flare

    Some of our clients have reported that at times they have encountered flare (most often represented as a hot spot in the middle of the frame) while shooting with the Rodenstock 23mm HR Lens. Capture Integration has been able to duplicate this issue. Our findings conclude that this can result from light paths arriving from various directions. Light leak and internal reflectivity have been eliminated as sources for the effect through various steps of eliminating directional and ambient light.

    In an incredible display of good timing, we tried utilizing the new Cambo Lens Shade to see if we could improve the situation. Indeed we found that we were able to. We found that the unique ability to asymmetrically compress and expand the lens shade is an essential factor in reducing the flare from the 23mm HR. Some samples are below - before and after versions of the fils as shot and dramatically enhanced to easily see the effect and then a crop of the before and after. There is also a capture of the angle of the lens shade that was used to eliminate the flare with the sun coming in at a one o'clock angle.


    Steve Hendrix
    Steve Hendrix, Sales Manager, www.captureintegration.com (e-mail Me)
    Digital Cam: Phase One | Leaf | Leica | Sinar Authorized Reseller
    TechCam: Alpa | Cambo | Arca Swiss | Sinar Authorized Reseller
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    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Rodenstock 23mm HR Flare

    Looks great Steve . Thanks for posting this.
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

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    Re: Rodenstock 23mm HR Flare

    Thanks for this
    I am wondering how this shade compares to the LEE wide angle hood
    I could not get it to work on the 23HR
    Maybe the reason is that the Lee is a screw onto the lens which os good for rise and fall but possibly to close to the lens element so it's showing up in the frame. But how does the Cambo shade work with shift? Even the 23 can be shifted a bit
    Grischa

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    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Rodenstock 23mm HR Flare

    You can put hood on first than CF filter and you have room to shift. They are revising it slightly too as I was there with Rene from Cambo and Steve and we talked about some revisions and such. But I have to say this works a charm, it was really bad in one sample and we corrected it with the hood and you really need a hood with this lens. Frankly I would not buy this lens without the hood myself.
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  5. #5
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    Re: Rodenstock 23mm HR Flare

    i've been using the arca model for years, it improves image quality a lot !

    especially with the 35 XL and the 90 HR !

    less unnecessary light enter the lens, better is the micro contrast !

    it's specially true with bright white sky and architecture.

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