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  1. #1
    Mustafa Umut Sarac's Avatar
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    Germanium Lens Advantage

    I read at Edmund Scientific that Germanium is refractive index 4.
    This was the highest index material in the list.
    Than I looked to the price lists and 3 element , 3 centimeters diameter lens is 140 dollars.
    Do these lenses make a killer image quality or waste of time ?
    Is there extremelly high abbe number , high ref index doublet or triplet lenses at the market ? May be Schott start to make Lutetium at near future .

    Thank you ,

    Mustafa Umut Sarac

    Istanbul

  2. #2

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    I think germanium is for infrared imaging only. I don't think it is transparent to visible light.

  3. #3
    Mustafa Umut Sarac's Avatar
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    Thank you.

  4. #4
    ath
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    Quote Originally Posted by alanrockwood View Post
    I don't think it is transparent to visible light.
    correct.
    Regards,
    Andreas



 

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