Polarized filter location - drop-in or at front element - any difference?
Re: Polarized filter location - drop-in or at front element - any difference?
3
risto40 wrote:
Hi,
Just for curiosity, when you take a landscape photo of blue sky with wide-angle lense and use polarization filter on top of front element, you only get one spot/area of the sky polarized/darker. Whole sky is not evenly impacted. Is the result the same when drop-in polarizer is used (eg a polarizer in Canon EF-to-RF adapter) (because the location of the Polarization filter is at the back of the lens/closer to sensor, impact to the sky is much more even)?
It should be the same. The effect is caused by the sky being polarised in the direction of the sun and at 90° to it. The angle to the sun will change across the field of view of a wide-angle lens and that doesn't alter whether you put a polarised filter in front of or behind the lens.
You can check this just by looking through a filter by itself.
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