Upgrade the memory of your 2018 Mac mini up to 64GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$4499 $3499
SAVE $1000

$1398 $898
SAVE $500

$649 $449
SAVE $200

$7595 $5995
SAVE $1600

$799 $499
SAVE $300

$2598 $2398
SAVE $200

$700 $500
SAVE $200

$1498 $1398
SAVE $100

$249 $219
SAVE $30

$1699 $1299
SAVE $400

$21999 $19999
SAVE $2000

$8399 $7599
SAVE $800

$1149 $799
SAVE $350

$260 $180
SAVE $80

$4998 $3998
SAVE $1000

$569 $519
SAVE $50

$899 $799
SAVE $100

$2347 $1997
SAVE $350

$883 $633
SAVE $250

$1299 $949
SAVE $350

$1699 $1299
SAVE $400

$1199 $1099
SAVE $100

OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!

Filters for Protection, Polarization, Infrared and Ultraviolet

Filters have a variety of uses, many of which have lessened with the advent of digital camera white balance. But that doesn’t mean just any filter will do.

Buying filters

See the Buying Tips page.

Which type of filters?

There are only two types of filters for regular use:

  • a neutral filter for lens protection (eg a “UV” or “clear” filter);
  • a polarizer for reducing reflections and atmospheric haze.

A warming filter is not needed with a digital camera, since the white balance can be adjusted in the camera. Even strongly blue scenes do just fine, according to my research.

If you’re shooting a high grade lens, a quality filter usually won’t hurt, but it won’t help, unless it’s a polarizer and the goal is to cut glare, or some other particular reason, like perfect color balance.

√ B&H Photo PAYS THE SALES TAX FOR YOU More info...

Don’t skimp

If you’re using a filter for lens protection, don’t skimp and get a cheap filter, because even the very best filters can degrade image quality. And keep the filter spotless if you’re shooting into bright lighting.

If you have an inexpensive lens, why bother? A good quality filter can cost half as much as some basic lenses! The exception would be a cheap filter for salt spray or blowing sand, etc.

See the Schneider B+W filter handbook.

Polarizers

A polarizer is the only filter that can remove glare, or darken the sky. It can also reduce atmospheric blue haze to a limited extend, depending on the nature of the haze.

With the sky, peak polarization is at 90° from the sun, declining to 0° at 180° from the sun. For this reason, the effect can be “banding” in the sky with wide angle lenses 24mm and wider— it looks wrong, so use care.

I use a polarizer rarely, because the effect is frequently too postcard-like for my taste, a cliché I try to avoid. Use a polarizer judiciously, and remember that removing glare can make a scene look very unnatural, and can also make water look great, or fake.

OWC Holiday Stocking Stuffers

Order today by 5 PM Central, get by XMAS!

Macs, iPhone, sound, accessoris, Beats, Homepod, much more!


Infrared and ultraviolet photography

Some types of specialty photography such as infrared or ultraviolet imaging demand specialty filters to block unwanted colors (wavelengths).

Spectral transmission measurements

Spectral transmission graphs on subsequent pages were measured by Coastal Optical Systems on specialty optical equipment using single samples of the specified filters. Graphs used by permission.

OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!

Save the tax, we pay you back, instantly!

View all handpicked deals...

Sony Alpha a7 II Mirrorless Digital Camera (Body Only)
$1398 $898
SAVE $500

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.