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

Most mid-day outdoor photography includes areas illuminated by direct sunlight. If you have elements in your picture that have direct sun falling on them the correct exposure is really a foregone conclusion.

If you find the BDE formula in an old photographic technique book it reads like “The reciprocal of the film speed at f16” a terse and potentially confusing statement of a simple calculation.

If you set the film speed, E.I., as the shutter speed and put the lens on f16 you will have the correct exposure for bright sunlight.

With film speed (E.I.) 125 the BDE is 1/125th at f16, E.I. 400 is 1/400th at f16.

But you use your light meter and it gives many different readings in the same situation.

Which is right? Only one… The BDE.

...

Your camera is averaging the values together and calculating the exposure. If you have direct sunlit areas in your picture they will be over or underexposed by an averaging meter.

If I want good exposure in bright sunlight I calculate the exposure, set it and forget it. I ignore the meter because it will lead me away from the path of righteous exposure.

Many famous pictures were shot using this methodology including “Moonrise over Hernandez N.M.” by Ansel Adams. In the case of that image he used the known standard amount of light on the moon to calculate the exposure. He frequently used this as it is always correct if you have direct sun on some part of your scene.

This method won't work for sunrises or sunsets but... for the rest of the day it is rock solid and dependable.

Try it… It will free your mind to concentrate on the picture rather then getting the correct exposure.

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Contents
 
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, free desktops and free e-cards 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 e-commerce 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. Many of the 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 and a Canon 5D Mark II.

We offer archival quality prints in a wide variety of sizes and media. We print on a variety of heavy art papers and canvas using a Canon iPF8100 44 inch 12 color printer with pigmented inks.

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 new media artist and facilitating a photographic education and street level art outreach program through the Fremont Art Association in Fremont California.