Welcome to my blog, I'm Charles Johnson - a scientist and an amateur photographer. This site is devoted to all aspects of science related to photography. For more information read my About page.

This blog is © 2007-2010
Charles S. Johnson, Jr.
All rights reserved.
Comments[0] 12:17PM Feb 27, 2010 by Charles in General
My wife and I visited Bosque del Apache in late January and were there for the full moon. Reports online had indicated that the bird count in 2009/2010 was low and that some of the magic was gone. This was my first trip so I couldn’t compare directly with other years; however, we had a great time with many photo opportunities. I show the bird count here.[Read More]
Comments[0] 10:16AM Feb 26, 2010 by Charles in General
SCP now appears on the AKPeters site at:
http://www.akpeters.com/product.asp?ProdCode=5817
I have not seen the final page layout taking into account my recommendations, but I expect the book to be a very nice product. I understand it will be available in quantity sometime in May. Also, I do not know what the final "street" price through distributors like Amazon will be.
Comments[0] 07:17PM Nov 26, 2009 by Charles in General
The book "Science for the Curious Photographer" is being prepared for publication by A K Peter, Ltd. It will not be sold through this site until it is available in book form. A K Peters also has rights for electronic distribution. There are no immediate plans for another ebook version.
The type edited book has changes in the arrangement of notes and references and some minor changes in wording, but there has been no significant change in content.
Comments[0] 05:10PM Oct 12, 2009 by Charles in General
I am happy to report that the eBook, Science for the Curious Photographer, is for sale again. Figure numbering errors have been corrected, and there are a few other minor changes. This is a temporary offering because A K Peters, Ltd. now has exclusive publication rights. Sales on this site will end when the book is published.
Please report any suspected errors in the eBook or the published excerpts.
Comments[0] 05:58PM Sep 20, 2009 by Charles in General
I just posted a sample of my photographs from Mount Desert Island/Acadia and Grand Manan Island here. I believe the Bay of Fundy is one of the best places to see a variety of whales. Also, from my experience Cadillac Mountain in Acadia N.P. is unequaled for sunrise photography. It may also be the first place the rising sun is visible in the United States each day. My sunrise and sunset photos are usually taken in the HDR mode and processed in Photomatix (Lightroom plugin). However, the subtle shades of the dawn and predawn sky are often not captured well in the tone mapped image. I sometimes resort to a single well exposed image.
Comments[0] 08:55AM Sep 13, 2009 by Charles in General
The e-book "Science for the Curious Photographer" is temporarily off-line. I am sorry for the inconvenience.
Comments[0] 02:45PM Sep 09, 2009 by Charles in General
Science for the Curious Photographer is being published in book form by A K Peters, Ltd. This publisher is well-known for books on mathematics, computer science, and general science; so I think it will be ideal for my kind of book. We expect the book to be available in the spring, maybe March. The publisher also has electronic rights; but for the time being, the pdf version of SCP will continue to be available on this site. I appreciate the advice, support, and encouragement offered by my readers.
Comments[0] 12:34PM Sep 07, 2009 by Charles in General
We returned on August 25th from a great
vacation/photo shoot in
Comments[0] 10:40AM Sep 07, 2009 by Charles in General
In reviewing the text and converting the figures for publication, a number of errors and inconsistencies in the numbering of figures were found. Also, three previously unnumbered illustrations have been given numbers. Before the corrections,[Read More]
Comments[0] 12:36PM Aug 09, 2009 by Charles in General
Well exposed images from a DSLR usually do not look very good right out of the camera. Accordingly, most of us have learned that post processing is necessary to get the most out of our images. I have used Photoshop for many years to process my RAW images, but I did not have a good way to handle my growing collection of images. Adode Lightroom seemed to provide an answer for database management and, in addition, offered developing and printing capabilities. However, my initial attempts to use Lightroom were not very successful because I did not know how to use its many features. I tried to read books about Lightroom, but my attention span is not very long when I don't know what I am looking for.[Read More]
Comments[0] 10:08AM Aug 08, 2009 by Charles in General
The discount code is scheduled to end on August 15. Please refer to the July 17 posting for the code, information, and links to excerpts from the book.
Comments[0] 08:49PM Aug 07, 2009 by Charles in General
A friend recently found that his new Canon 50D seldom gave sharp images when compared with his 40D, and he sold the 50D. This week I tested a new Canon T1i for AF focus accuracy. [Read More]
Comments[2] 03:13PM Aug 04, 2009 by Charles in General
Please report any typos or other suspected errors in the e-Book SCP. I will make a list and post them from time to time. You can just use the comment space here. I just noticed that Fig. 17.1 is misnumbered.
Comments[0] 12:36PM Jul 30, 2009 by Charles in General
I am a serious amateur photographer, and I do several photo-shoots far from home each year. That means air travel with all its hassles. I start with the requirement that all valuable and sensitive equipment, e.g. cameras and lenses, go with me as carry-ons. So what do I really need and how can I pack it so that it will be allowed as carry-on luggage?
[Read More]Comments[2] 04:05PM Jul 29, 2009 by Charles in General
Recently, at Luminous-landscape.com (LL), Ray Maxwell
expounded on his view that