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D457 Sunlight Outdoor Usage Filter

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3 comments

  • MartyG

    Hi Ferdogan  D457 is not equipped with the sunlight blocking filter of the D435if camera model.  It is possible to purchase the D435if's CLAREX NIR-75N filter as a separate product and apply it externally over the lenses on the front of the camera.  

     

    Unlike most models in the 400 Series range, the D457 is designed to be used with a type of cable connection called GMSL / FAKRA instead of a USB cable.  It can be used with USB by moving a switch on it, and the camera is then detected as a D455 instead of D457.

     

    So if you are interested in the D457 for its IP65-rated casing which protects against water and dust and you will be using the camera on a USB cable, the D456 model may be a more suitable choice for your needs.  It provides all of the features of the D455 model (including an IMU component like the D435if has) and also has the D457's IP65 protective casing.

     

    RealSense 400 Series cameras work excellently in sunlight except when faced directly into the sun.  If you anticipate that the camera will have to deal with direct sunlight then a filter-equipped model such as D435if or D455f is recommendable. 

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  • Ferdogan

    Hi Marty
    Thanks for quick response and detailed explanations.

    But there is one point that not make sense. D457 and D456 are outdoor models. But there is no filter on them. Are they perform well enough so there is no filter on them or they need a filter like d435?

    thanks again

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  • MartyG

    Intel's camera tuning guide has a section about use of 400 Series cameras in sunlight at the link below. 

    https://dev.intelrealsense.com/docs/tuning-depth-cameras-for-best-performance#use-sunlight-but-avoid-glare

     

    It was written before the 'f' camera models equipped with CLAREX filters were introduced.  It reiterates my earlier statement about the cameras working excellently in sunlight but recommending use of filtering when pointing the camera directly towards the sun.  This advice is relevant to the D456 and D457 models, which are not equipped with CLAREX sunlight filters.

     

    If auto-exposure is enabled then if a problem with the image occurs due to facing the sun, auto-exposure should correct it if the camera lenses are covered over for several seconds or the camera is no longer facing the sun.

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