DPReview.com is closing April 10th - Find out more

Polarizing Filters

Started Nov 20, 2020 | Discussions thread
PeterPentax
PeterPentax Senior Member • Posts: 1,131
Re: Polarizing Filters

manual_focus wrote:

One additional note is that while the camera settings were the same, the shutter speed was two full stops difference (1/1600 sec vs 1/400 sec) without and with the filter. The CPL is removing a lot of polarized light which accounts for the differences

CPL's darken the light from an image. Due to their nature, they darken polarised light more than non-polarised light.

You need to take this into account when you use CPL filters. Your shots with the filter look under-exposed to me.

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow