In Focus — a bimonthly newsletter

Digital Tip: Exposure Part I – ISO

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When you go to the beach do you want a sunburn, a nice healthy tan, or a pale complexion? You’re in control by how much you expose your skin to the sun. If I spend too much time outside without my hat, my balding head gets burned. That’s analogous to an over-exposed photograph, although the results usually aren’t so painful.


Point Whitehorn Beach
Point Whitehorn beach, photographed on a sunny day at ISO 100.

This month and the next few I’m going to help you make sense of the three variables that interact to affect photographic exposure: the sensitivity of the digital sensor (or film), how long the light strikes the sensor, and how big is the hole the light passes through. We call those the ISO, shutter speed, and aperture. I’ll get to each of those and how they interact in this and the next few installments, along with exposure compensation.

You may wonder why this is important if you always use your camera in its fully automatic mode. In full auto, your camera is measuring the light and setting the ISO, shutter, and aperture to expose the subject correctly. Taking control yourself gives you creative options you don’t have in full auto mode.

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Plant of the Month: Staghorn Sumac

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Staghorn Sumac above mixed perennial bed

Staghorn Sumac above mixed perennial bed in our garden on September 27

As I look out the window to our garden the staghorn sumac (Rhus typhina) is beginning to turn brilliant orange, almost glowing in the soft morning light. Erect pyramidal clusters of fuzzy red seeds form soft spires against the foliage.

This large shrub is native to most of eastern North America east of the Mississippi River. It is widely planted, and thrives, in much of the rest of the continent. A mature sumac can reach 25 feet tall and equally broad. It’s often a multi-stemmed shrub, spreading by suckers arising from the roots. Staghorn sumac is often found in the wild on disturbed sites and woodland edges. Continue reading

Studio Open House September 12

Turner Photographics studio exterior

Turner Photographics studio exterior

We’re finished with construction (except for painting some of the trim and doing the landscaping) and our beautiful new studio at 4682 Wynn Road is open for business. We’re throwing a party on Friday afternoon, September 12 from 4-7 pm to show it off and welcome you to our new space. Continue reading

Plant of the Month: Spiny Wood Fern

Wood Fern w/ Vinca minor

Wood Fern with Vinca minor in a garden near Bellingham

Spiny wood fern (Dryopteris expansa), is one of our woodland plants that has continued to look good through the dry days of August while some of the other perennials have gone into summer dormancy or looked tired and droopy. We have quite a lot of wood fern growing in our woods, almost always on decaying conifer logs or stumps.

This deciduous fern is easy to recognize, although with just a quick glance you could confuse it with lady fern or male fern. Spiny wood fern has fronds that are broader at the base than at the tip, with a triangular shape that tapers to a point. It gets the spiny part of its name from the chaffy brown scales along the lower part of the leaf stems. Continue reading

Digital Photo Tip: Improvised Rain Cover

Garden chairs on awet flagstone patio

Garden chairs on a wet flagstone patio, Pittsburgh, PA.

Last month when I was on a bus tour of Pittsburgh, Pennsylvania gardens with the Garden Writers Association I got caught out without my usual rain cover for my camera. We only had 20-30 minutes in each tour garden and I certainly wasn’t going to pass up the opportunity to photograph lush and beautiful gardens just because it was raining and I didn’t have proper protection for my camera. I really like the look of a garden in the rain. Continue reading

Loads of Lectures

Vine Maples above Willows, autumn

Vine Maples above Willows, autumn

You’ll have many opportunities to hear me talk and see great images of trees and shrubs this fall. I’ll be presenting two different programs for native plant groups: 50 Trees and Shrubs for Northwest Gardens and In Praise of Woody Diversity. Both are drawn from the new Trees and Shrubs of the Pacific Northwest. I’m also presenting a new garden photography program, Photography in the Garden Through the Seasons. Continue reading

Plant of the Month: Red Elderberry

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Red Elderberry fruit

Red Elderberry fruit

I watched our native red elderberries go through their spring progression back in March and April. They’re one of the first shrubs to start unfurling their leaves, beginning in mid-March. Now that summer is here, they’re covered in bright red fruit. There are some big patches of elderberries beside I-5 where they’re easy to spot (and identify) even at 70 mph. Of course, they’re easier to learn at a more leisurely pace in your backyard or along a quiet trail.

Here in the Pacific Northwest we have two species of elderberry. More common on the west side of the Cascades is the red elderberry (Sambucus racemosa var. racemosa). It is native to much of North America, according to USDA Plants Database. The other is blue elderberry (Sambucus nigra ssp. cerulea), which grows throughout western North America. Both species of elderberry have similar cultivation requirements, as does another species found in eastern North America. Continue reading

Digital Photo Tip: Think Triangles

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Triangular composition in group of Lombardy Poplars
Strong triangular composition in group of Lombardy Poplars.

There’s a lot of power in the humble triangle. Just as it brings strength to all kinds of mechanical structures, the triangle makes your photographs stronger, too.


Triangular composition in group of Lombardy Poplars

It doesn’t matter whether you’re photographing your family, a sweeping landscape, something abstract, flowers, or anything else. Look for ways to incorporate one or more triangles into your composition. Continue reading

Trees & Shrubs of the Pacific Northwest Released

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Trees & Shrubs of the Pacific Northwest

Trees & Shrubs of the Pacific Northwest

It’s been a long journey but my latest book, Trees & Shrubs of the Pacific Northwest, should be in your favorite bookstore this week. You can also order autographed copies directly from me. Ellen Kuhlmann wrote the text and I photographed all but a few of the 568 species of mostly native trees and shrubs in the book.

I began thinking about the tree book back in 2009 and began photographing a few species that year and in 2010. Ellen and I signed a contract with the publisher, Timber Press, in 2010 and then we began working on it in earnest. I spent all of the 2011 and 2012 growing seasons traveling throughout the northwest to find and photograph the plants. We delivered the manuscript and photos to Timber in 2013. It always amazes me how much time is required to edit, design, and print a book like this. Ellen and I received our first author’s sample copies about a month ago and we’re pleased with the final result. Continue reading