Latest or all posts or last 15, 30, 90 or 180 days.
2024-03-19 01:08:09
Designed for the most demanding needs of photographers and videographers.
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$3399 $2999
SAVE $400

$2997 $2997
SAVE $click

$348 $248
SAVE $100

$999 $699
SAVE $300

$5999 $4399
SAVE $1600

$1049 $879
SAVE $170

$4499 $3499
SAVE $1000

$999 $849
SAVE $150

$999 $799
SAVE $200

$5999 $4399
SAVE $1600

$799 $699
SAVE $100

$1199 $899
SAVE $300

$1099 $899
SAVE $200

$348 $248
SAVE $100

$1602 $998
SAVE $604

$3399 $2999
SAVE $400

$3997 $3697
SAVE $300

$5999 $4399
SAVE $1600

$1397 $997
SAVE $400

Breakthrough Photography Circular Polarizing Filters (CPOL)

The Breakthrough Photography X4 circular polarizer filters (CPOL) have an exceptionally neutral spectral weighting as can be seen in the three comparisons below (toggle). [The filters were previously designated X3, the X4 moniker does not indicate a change; it’s a trademark headache issue].

In particular, some polarizers transmit more green / yellow / red than blue. The Breakthrough Photography X4 circular polarizer filters maintain a nearly flat spectral transmission profile, meaning they generate a more neutral result that avoids color bias. The important range for visible-light photography is 420nm (violet)* to 650nm (extreme dark red, near infrared).

I’ve just received some CPOL filters for testing, and I’ll put them to use soon in some testing.

See also Breakthrough Photography X3 Neutral Density Filters and Breakthrough Photography Night Sky Filter.

* Most digital sensors utilize a bandpass filter around 420 nm, the 400-420nm range is of little importance with most cameras.

Graphs courtesy of Breakthrough Photography.

Spectral transmission graph for Breakthrough Photography CPOL filter

View all handpicked deals...

Nikon Z7 II Mirrorless Camera
$2997 $2997
SAVE $click

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | X.com/diglloyd
Copyright © 2022 diglloyd Inc, all rights reserved.