Archive for July 2013
Film photography can be a great learning experience, but the lack of EXIF data makes mastering the basics more tricky. After all, knowing what aperture and shutter speed values were used in a specific situation can come in rather handy. To solve this problem, I devised a solution which involves a notebook, an Android device, and digiKam.
Whenever I take a picture with my film SLR camera, I write down aperture, shutter speed, focal length and other useful info (exposure compensation, light source, lens used, etc.) in a notebook. To make data entry more efficient, I use icons for often-used lenses and common lighting conditions, and I have a cheatsheet in the notebook which looks like this:
While any notebook or even a loose piece of paper would do, I prefer spiral-bound notebooks from KOKUYO S&T for one important reason: I find the accompanying CamiApp app rather useful for quickly digitizing notes. Thanks to its size, the Ring Memo A7 version fits perfectly into a pocket, and the notebook is much tougher than it looks.
When the roll is finished and developed, I use digiKam to update the EXIF metadata of selected digitized photos. digiKam features a dedicated module which makes it easy to manipulate EXIF metadata. The process of adding EXIF data using digiKam is rather straightforward: choose Image → Metadata → Edit All Metadata, then enable and fill the relevant fields. Press OK when done.
Importing EXIF data by hand for each photo may seem like a daunting proposition, but I usually do this only for a few selected photos from each roll.
According to adaptall-2.org, this particular model was Tamron’s best selling lens throughout the early to mid 1980s due to its performance, price, and ergonomics. Because of its popularity, the lens is relatively cheap. I bought mine in mint condition (including the original box and a snazzy lens case) from a local auction website for a paltry sum of $35 as a replacement for my Tamron 70-150mm f/3.8 Adaptall lens.
There are two things I particularly like about this lens: the unique design and the lens’ distinct look. With its colorful markings, the lens completes my trusty Nikon F-501 from the same era. I had a chance to shoot a single film roll with the lens, and here are a couple of photos for your viewing pleasure. All the photos were taken with Nikon F-501 and Ilford XP2 Super 400.
This confused seagull chick climbed on top of the car and stood there, trying to figure out what to do next.
While the 103A model is technically not a macro lens, it’s capable of producing decent close-ups. This logo plate on a Triumph motorcycle was taken from approx. 1.5m distance at 210mm focal length.
One more example of the lens’ close-up capabilities. Lilium superbum from the Aarhus University botanical garden.
A Raspberry Pi-based server is perfectly capable of sharing photos on the Web. But instead of deploying Gallery, Piwigo, or any other heavyweight photo publishing application, you might want to opt for something nimble like Pygmyfoto that offers a straightforward way to publish photos as a continuous roll. The application allows you to give a brief description and assign tags for each published photo. In addition to that, Pygmyfoto automatically processes and displays key EXIF data (exposure, aperture, and ISO), adds a link to the full-size version of the photo, and generates a map URL. The latter lets you view the exact place where the photo was taken using the OpenStreetMap service (provided the photo has been geotagged). Pygmyfoto features a few creature comforts, including the search by tags functionality, rating capabilities, and simple view statistics.
The Pygmyfoto installation on Raspberry Pi consists of a few relatively simple steps. First of all, you need to install the required packages. To do this, run the following command on Raspberry Pi:
sudo apt-get install apache2 php5 sqlite3 php5-sqlite imagemagick libimage-exiftool-perl git
Switch then to the /var/www directory and clone Pygmyfoto’s GitHub repository:
sudo git clone https://github.com/dmpop/pygmyfoto.git
Use the sudo chown www-data:www-data -R pygmyfoto command to change the directory’s owner and group.
Switch to the pygmyfoto directory, open the phpliteadmin.config.php file in a text editor, and replace the default password by editing the $password = “admin”; line. Modify the default values in the config.php file, if necessary.
Add photos to the pygmyfoto/photos directory, run the ./pygmyfoto.sh command in the terminal, and provide the required info.
Point the browser to http://127.0.0.1/pygmyfoto (replace 127.0.0.1 with the actual IP address or domain name of your server) to access Pygmyfoto.
To access and manage the pygmyfoto.sqlite database, make it writable using the sudo chmod 600 pygmyfoto.sqlite command. Point then the browser to http://127.0.0.1/pygmyfoto/phpliteadmin.php and log in using the password specified in the phpliteadmin.config.php file.
If you’d like to see Pygmyfoto running on Raspberry Pi, drop by dmpop.dyndns.org/pygmyfoto
The sparrows in our garden are not having a good Monday. This morning, I witnessed a bird of prey snatching a sparrow right from the bird feeder. It was totally surreal: I mean, we live in an urban area, not some remote woodland. Later, I saw a stray cat trying to catch another sparrow. And now it’s raining cats and dogs. Poor buggers!
Taken with Canon 1100D and Tamron SP 300m f/5.6 Adaptall 2. Processed in digiKam.