Digital ND Filter?

Started Jun 8, 2014 | Discussions thread
Chris R-UK Forum Pro • Posts: 17,990
Re: Digital ND Filter?

Levan wrote:

steelhead3 wrote:

A number of Sony cameras have a ND built in (7s, rx10, rx 100III etc.)

Don't these compact cameras havehysical ND filter? How digital MD filter is possible? If you don't put an extra glass before the sensor, it will get exposed anyway. You can not digitally reduce light. You can darken the scene digitally, but it want make your exposure "correct" or shutter speed slower. Am I missing something?

I think that you are right.

The problem with having too much light is that the sensor pixels get "fully filled" causing blown highlights.  The only way that you can deal with that is to reduce the light before it hits the sensor.  Any digital solution is going to happen after the data is read from the sensor which is too late.

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Chris R

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