Exposure Triangle Explained: ISO, Light, and Noise

Osprey in the Rocky Mountains

The purpose of this article is to clear up myths and misinformation about image exposure ISO, and noise. So, what is exposure exactly? Exposure is simply the amount of light reaching your sensor or film in a given amount of time. The amount of light reaching your sensor is determined by the length of time the camera’s shutter is open, and the size of the opening in your selected lens model.

Insane Osprey Fishing Sequence

Osprey in the Rocky Mountains

The plan was to arrive at the lake for a morning of red-winged blackbird photography. I was awake way early, but decided to start up the coffee pot… and my day. I checked my weather app, wondering what yesterday’s snowstorm had wrought. When I saw it was only 9 degrees outside, the thought crossed my mind to back out! However, there were still a couple of hours of darkness remaining, and I hoped the morning sunshine would warm the air a bit, by the time we arrived.

Exploring Monochrome: Canon A-1 and Ilford Delta 400

Ilford Delta Film by #swkrullimaging

This post has been a long time coming. Last winter I loaded my old Canon A-1 film camera with a roll of Ilford Delta 400 to see if I like it better than the venerable HP5 emulsion. In addition, I will be testing out my new yellow and orange filters to see what effect they have on this film stock.

Happy Easter 2026

Snow Capped Mountains

Thought I'd put together this quick Easter message YouTube video from the top of Grouse Mountain at the base of the Sangre de Cristo Range of Colorado!

Epic Wildlife Adventure: Protecting Nature’s Wild Heroes

The War On Wildlife

I thought I would put together this post comprised of nice quotes from others, to announce the completion of my wildlife trilogy which I am calling by the name of the last book in the series, "The War On Wildlife", as the entire trilogy is indeed about this nation's war on it's own four footed wild legacy.

Spring 2026 Newsletter

Rocky Mountain Sports and Leisure

It's difficult to keep up with all the new developments in my world in 2026! In addition to all the excitement in the mountains from returning bird species and new four legged babies being born in the wild, I have managed to complete my historical fiction and romantic adventure trilogy with the publishing of my latest, The War On Wildlife. I have also recently launched a new online sports and leisure magazine, which I will be talking about in this post!

Colorado Author Achieves Major Milestone

War on Wildlife Photographer Author(Facebook Cover)

Colorado photographer and author, Steven W. Krull has just released his third historical fiction / romantic adventure novel in the War on Wildlife Trilogy, five years in the making. The War on Wildlife, third release in the series, is focused primarily on Colorado's voter mandated effort to reintroduce wild wolves to the mountain ecosystem.

Author Takes a Stand for Iconic Western Wildlife

Wildlife Trilogy

Author Steven W. Krull has just completed his historic wildlife trilogy with the release his historic fiction romantic adventure novel, The War On Wildlife, now available on Amazon!

Author Chronicles Colorado Wolves

War on Wildlife Photographer Author(Facebook Cover)

Learn the history of the Colorado wolf reintroduction through the eyes of Steven W. Krull's exciting fictional characters in a gripping tale of daring and suspense,  in his latest release,  The War On Wildlife!