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Thread: what determines the kind of reflections we get in pics?

  1. #1
    Senior Member erictan8888's Avatar
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    Default what determines the kind of reflections we get in pics?

    hi,

    just like to ask:

    i understand that if the flash is too harsh, reflection of light on reflective surfaces are common....

    just like to know: what determines the kind of reflections we get?

    sometimes it is like a bright spot, at other times, this kind of reflection is seen (pic below)




    so, does the kind of reflections we get depends on the body, lens, or object material type?
    pls enlighten... thanks
    Hope to learn from everyone here....

  2. #2
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    Default Re: what determines the kind of reflections we get in pics?

    Quote Originally Posted by erictan8888
    hi,
    i understand that if the flash is too harsh, reflection of light on reflective surfaces are common....
    Reflections are more or less distorted virtual images of the light source(s). They occur regardless whether one uses "soft" or "harsh" light, but they are more noticeable if they have sharp contours or if they're particularly bright.

    The scene we see and photograph is usually also not made from light sources, but objects reflecting light towards the eye/camera. Most photographic images depict nothing else but reflections!

    How the reflections are depicted in a photograph depends first and foremost on the reflection itself, and then on the characteristic of the lens used to form the image. As an example, the apparent distance of the virtual image in a specular reflection depends on the curvature of the surface. Depending on the depth of field achieved with the taking lens, one could get a sharp depiction of the light source, or a blurred, smooth one.

    The lens, camera body, and even the film/sensor itself also have more or less reflective surfaces, so more reflections are added that are not "really" there in the scene. Usually, these artefacts are benign, but sometimes they are severe (e.g. lens flare).

    so, does the kind of reflections we get depends on the body, lens, or object material type?
    On everything of the above, and more.

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