Such Camera Lens Low, High Pass Filter ?

Mustafa Umut Sarac

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• Oct 30, 2014

• #1

Is there such a thing like low or high pass filter for camera lenses ? I think every exotic lens acts be or there such a way but my intention is to control these effects which I saw at Fourier Transform at Google.

Umut

 

Dr Croubie

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• Oct 30, 2014

• #2

You mean low- and high-frequency wavelengths? That would be an IR- or UV-cut filter.

Or low- and high- spatial-resolution frequencies? That's like an Anti-Aliasing Low-Pass filter that you get on Digital sensors. I don't know much about how they work, if they can just be added anywhere or if they have to match the pixel-sizes exactly...

 

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Mustafa Umut Sarac

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• Oct 30, 2014

• #3

Yes , the spatial ones I am looking for. Thank you.

PS. I dont think placing a low pass filter everytime on camera sensor is good idea , may be one of the reason digital fails , I know Leica removed some filters at their bw m camera but I think filtered one has lower contrast and less blow out highlights.

 

Last edited by a moderator: Oct 30, 2014

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Mustafa Umut Sarac

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Oct 29, 2006

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İstanbul

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• Oct 30, 2014

• #4

http://www.eoshd.com/2012/03/james-...ter-from-5d-mark-iii-for-resolution-increase/