Pedestrian crossing sign modified for surfers on Kauai, Hawaii, United States of America, North America

Man riding modified bicycles on forest path

Men riding modified bicycles on forest path

Man riding modified bicycles on forest path

NGC 7000, the North America Nebula, with the Pelican Nebula, IC 5067, at right, in Cygnus, taken from home November 21, 2016 as part of testing of the Explore Scientific FCD100 102mm apo refractor. This is a stack of 5 x 6-minute exposures at f/7 with the ES field flattener, and at ISO 1600 with the filter-modified Canon 5D MkII. Star diffraction spikes added with AstronomyTools actions.

Gum Nebula area of Vela and Puppis. Taken from Atacama Lodge, Chile, March 19, 2010, with modified Canon 5D MkII and Sigma 50mm lens at f/4, for stack of 10 x 6 minute exposures (Mean combined) at ISO 800 plus 2 x 6 minutes with Kenko Softon filter. High contrast boost and Selective Colour adjustments to bring out nebulocity while retaining neutral sky.

Nebulosity in the heart of Cygnus the Swan, including the North America Nebula and Pelican Nebula at left (NGC 7000 and IC 5070) and Gamma Cygni complex at right (IC 1318). The Crescent Nebula (NGC 6888) is at lower right. This is a stack of 5 x 4 minute exposures at f/2 with the 135mm lens and modified Canon 5D MkII at ISO 800, plus another three similar exposure images but taken thru the Kenko Softon filter for the star glows. Taken from home Sept 10, 2013.

The Carina Nebula (aka Eta Carinae) in the southern sky, shot December 11, 2012 from Timor Cottage, Coonabarabran, NSW, Australia. This is a stack of 5 x 12 minute exposures at ISO 400 with the Canon 5D MkII (filter modified) and Astro-Physics 105mm Traveler apo refractor and 6x7 field flattener.

The Dreamlifter cargo plane, a Boeing 747, modified to carry aircraft parts manufactured for Boeing around the world to the company's assembly plant near Seattle, where the Boeing 787 Dreamliner is manufactured, Anchorage, Alaska, USA

Church Santa Maria del Popolo, romanesque facade, modified in 1695, with rose window, Cittaducale, province of Rieti, Latium, Italy, Europe

Coffee beans, identical, in a row

Soy beans of genetically modified seeds, Paraguay, South America

The Ponte dei Saraceni or Carcaci is a stone bridge probably dating back to the Roman period and rebuilt and modified in the 12th century over the Simeto river, Sicily, Adrano, Catania, Italy, Europe

The Ponte dei Saraceni or Carcaci is a stone bridge probably dating back to the Roman period, rebuilt and modified over time on the Simeto river; Adrano, Sicily, Italy, Europe

Friends relaxing while setting up camp outside two modified caravan campers; Bourton-on-the-Water, England, United Kingdom

Group of travelers huddled inside their camper van playing games for the evening, free camping in the German city of Kassel; Kassel, Germany

Setting up camp outside of a modified caravan camper; Bourton-on-the-Water, Gloucestershire, England

Friends setting up camp outside of a modified caravan camper; Bourton-on-the-Water, England, United Kingdom