Focus Stacking

Chaetoceros debilis (marine diatom), a colonial plankton organism, Wim van Egmond, 2013

Focus stacking is a digital image processing technique that combines multiple photographs taken at different focus distances to create a single composite image with an extended, front-to-back depth of field. The photographer takes a series of photos (often called a focus bracket) of the same scene using a tripod. In each frame, the point of focus is shifted incrementally—starting from the closest foreground element and moving progressively toward the background. The above photo is sort of a goal with this technique. It is a Nikon award winning macro picture. Below, find my initial foray, an obliquely shot one euro coin. Not bad for a first attempt, if it do say so myself.

1 Euro

In other news, Maren’s mother Kim is here now. The calvary has arrived! Were saved.

Frightening!

The best part of being a grandparent is that you can always hand the child back to their parents. But what if both parents are across the country in LA? That is our situation now. Both boys are at daycare now, but by the time that you can read this post we will have picked them up. What will they think? Who are these people? They show up. First, mommy disappears. Then daddy is gone too. Queue the meltdown.

Alarm, the British are coming

9-1-1, what’s your emergency?

Longfellow’s famous poem Paul Revere’s Ride, describes that part of his course on that fateful night that took him through “every Middlesex village and farm” as he raised the alarm that the British were coming. Two of the towns referred to in that line are Malden and Melrose. Melrose is the tonier of the two, but Malden has more character. The two cities adjoin each other. This disparity is reflected in their two public libraries. Malden’s is located in an imposing red sandstone building, while Melrose’s library is more modern and sleek. We visited Malden’s library last weekend and Melrose’s last night. Exiting Melrose’s, we rode the elevator down. Declan likes to press the elevator buttons. He’s good at pressing buttons. Ask his brother. This time Anne noticed that both the fire and safety alarm buttons have new plastic covers. Possibly because the last time she rode that elevator, Declan pressed the alarm. The operator spoke over the PA, “9-1-1 what is your emergency?” Anne was left to explain that there was no emergency, just a child. The librarians were rather nonplussed about the whole thing, saying it happens all the time and the buttons height, while useful for stricken passengers lying on the floor, were also at an ideal height for toddlers. That is why the elevator’s emergency buttons now have covers.