Rolling Shutter Explained

Northern House Wren

Rolling shutter is a term used to describe how data is transferred from an electronic sensor into the camera’s memory as an image. When you snap the shutter button, a series of actions is placed in motion and light hits the sensor to create an image. However it takes time for the camera to “roll” over the entire sensor to read the data that continues to be captured until the entire sensor has been read.

Exciting Day at the Eagles Nest

Bald Eagle Family

It was an exciting day at the eagles nest! Both adults were on the nest when I arrived at the canyon, so I stopped to snap as many pictures as I could before one of them flew off for their next meal.

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.

The Truth Behind AI Osprey Images: How to Tell Them Apart

Osprey

There have been a rash of fake AI osprey pictures on social media lately. They are quite fantastic and almost impossible to identify as fake. However for a real osprey photographer, there is one telltale difference. All the osprey pictures showing up on the web lately show the great raptor with a perfect fish, perfect face with perfect eyes looking around at the scenery on his unexpected flight through the wilderness.

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!

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!