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Photography and Photoshop Tutorials
 
Filters for Color Digital and Film Photography
Use these filters to improve the color and rendition of your photographs.
 

For general photography in digital or on film there are several filters that are most frequently used to improve the rendition or alter the possible range of exposure values.

Make colors snap…

If I had to have only one filter it would be a circular polarizer. I use the polarizer on most of my nature photographs.


The only time that I do not use it is when I am photographing rainbows or handheld in low light. When photographing reflections the filter does not need to be removed just rotated to the correct orientation so that you get the desired degree of reflection. This can be useful in controlling the amounts of reflection from bodies of water as some reflection is nice but the natural amount is usually too much.

The polarizer will darken the sky a variable degree depending on its setting. Plants will be rendered with richer colors because the polarizer cuts the specular reflections off of the moisture in the leaves. Most colors will benefit from the polarizer’s effect.

This is different from turning on the vivid switch in your camera. In-camera processing is always a bad idea as it is better to enhance color saturation and sharpness interactively in post processing.

The exposure compensation for a polarizing filter is 1 2/3 stops. This has been standard across all the polarizers I have owned over the years.

The second filter I carry is an ND or neutral density filter. ND filters are marked with the opacity value as if they were being read on a transmission densitometer. .10 is 1/3 of a stop, .30 is one stop and .90 is three stops. I like the ND .90 as it gets me into a different range of aperture and shutter speed combinations.

...

Making the water move…

If I have two filters the second is a neutral density filter. At EI 100 the BDE, basic daylight exposure, for direct sun is 1/100 at f16. As many lenses only support f22 as the maximum aperture this makes the slowest shutter speed available 1/50 (at f22).

Good movement in flowing water happens at shutter speeds between 1/15th and 1 second. 1/15th gives you lots of texture and good movement. As you head towards 1 second the water becomes less detailed and more unsubstantial. At about 5s the water seems to be simply a cloud in the channel. With the preceding assumptions you will see that using a polarizer with its 1 2/3 stop compensation factor will give an exposure of 1/30 at f16 or 1/15 at f22. You are exactly at the top of the range of good motion effects.

Using the ND .90 and the polarizer I get an exposure value of about 1⁄4 at f16 or 1⁄2 at f22. This filter allows me to really hit that window of good motion that happens between 1 second and 1/15th second and to have some choices as to how I want to render the water rather then just being stuck at 1/15th at f22 with the polarizer.

I find that the ND filters will change the white balance of the picture slightly and I have a custom white balance that I use for the filter. This amount of color shift is certainly not much and can be easily corrected in post processing.

When you use more then one filter the old wives tale is that your focus will suffer a very small amount. I do not feel this is even noticeable and will not hesitate to use the second filter, especially as you cannot get to this range of exposure values without it....

The third filter is the UV0 or 1. I use these to protect an exposed front lens element. As I rarely remove the Polarizer this is only for that time. A good example is photographing in low light where the polarizers density makes it too hard to see through the camera and there is not a direct light source to produce specular reflections.

It is critical that whatever filter you are using that you use a lens shade. This prevents lens flare, which robs your pictures of contrast and color saturation. Unlike the difference between 1 and 2 filters, which I cannot identify in a photograph, I can usually tell you weather your picture was shot with or without a lens shade.

I use a lens shade and my fedora type hat, which I hold over the lens to cut that last bit of flare when looking into the light. If you look at most pictures of Ansel Adams working you will not that he is wearing a fedora, there is a reason for this…

When the wind conditions are to high for me to wear the fedora I carry an 8x10 piece of black mat board that I use as the additional shade. I cannot stress too much the importance of a good lens shade and making the extra effort to do some additional shading. You can usually see the effects of the additional shading in the finder because it really makes a big difference.



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Watch The Quicktime Video - Part 1 Filters for Digital


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Watch The Quicktime Video - Part 2 Filters for Black and White

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Contents
 
Profile Extents Test Target
 
Precisely target the high and low values in your prints...

Day for Night Photography
 
Reality is not always exactly that...

Luminance Masking for Contrast Control
 
Using luminance masks on adjustment layers to control specific tonal ranges in your image.

HDR Luminance Masking
 
Using a simple Low Pass Luminance Mask to create a HDR image

HDR Burning and Dodging
 
Use a HDR photo stack and transparency masks to get excellent results with this burning and dodging like method.

Profiling Your Digital Camera
 
Free utility to build and edit profiles from Adobe Labs

Using the X-Rite Color Checker to Create Camera Profiles
 
This really optimizes the color output of your camera!

Using the Photoshop History Palette and Snapshots Effectively...
 
Or, whos your friend baby...

Using the Photoshop Threshold adjustment layer to evaluate image density and contrast for digital printing.
 
This is an easy method to target a files density for printing. It requires a basic knowledge of Photoshop adjustment layers.

Building Photographic Websites
 
I make websites for artists and find that most folks need some sage advice on the process...

I got a new film camera, the Gaoersi 617
 
Direct from Hong Kong

Camera Settings for Digital Photography
 
How to set your digital camera to get the best images possible

Filters for Color Digital and Film Photography
 
Use these filters to improve the color and rendition of your photographs.

Basic Daylight Exposure (BDE) Calculation
 
For outdoor photography the light meter is not always your friend...

Film Speed Table
 
A table of film speeds, E.I.'s in 1/3 stop increments.

Bellows Extension Calculator
 
Online bellows extension factor and exposure compensation calculator and printable exposure compensation scale

Spotting Flecks on Ink Jet Prints
 
Using Marshalls retouching dyes to remove those occasional flecks

Stretching Canvas Photographs
 
How to stretch photographs printed on canvas with inkjet printers.

 

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Web Site by Cooksey-Talbott Studio

Fine art photography of California by master nature photographer Cooksey-Talbott. Hundreds of beautiful photographs are displayed for sale online as raw or ready to hang images.

Cooksey-Talbott Gallery is an online gallery of nature photographs. The collection includes pictures of the High Sierra, Ansel Adams Wilderness, Yosemite, Trinity Alps, Sonora Pass, Santa Barbara Hills, East Bay Hills and Garin Park as well as hundreds of different waterfalls. Legacy images are from medium and large format film taken with the Mamiya RB-67 and a variety of 4x5 view cameras. Some of the more recent work is shot with a Nikon D200, Canon 5D Mark II and the Sony A7r.

We offer archival quality prints in a wide range of sizes and media. We print on a heavy art papers and canvas using a Canon iPF8300 44 inch 12 color printer with pigmented inks. Our images are first party prints made directly by the artist. Prints are signed and numbered and include a Certificate of Authenticity.

Ralph Cooksey-Talbott Thomas has been working as a photographer since 1972 when he moved to California from Michigan. During the 1970’s he studied under Ansel Adams in Yosemite. Ansel published one of his photographs in the portfolio section of his book "Polaroid Land Photography" Ansel and Orah Moore, another of Ansel’s students, suggested that he shorten his name to Cooksey-Talbott, and that is the name he has worked under since. Cooksey also studied at the San Francisco Art Institute and the San Francisco Academy of Art. He has lectured in photography at the U.C. Berkeley Extension, Studio One in Oakland and Santa Barbara City College. Cooksey is currently working as a photographer and facilitating S3-Photowalk.com which is a monthly photo walk that meets up in Niles California.