Archive for the ‘Hardware’ Category
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
Besides this blog and Google+, I publish my photos on a Pygmyfoto instance running on Raspberry Pi at my home. Instead of integrating Pygmyfoto with a third-party web stats application like Piwik, I opted for a less complex, but more colorful solution based on the nifty BlinkStick LED kit.
If you are interested in the nitty-gritty, you might want to read the Using BlinkStick with Raspberry Pi article by yours truly. In the meantime, drop by my Pygmyfoto installation and give me a blink.
It all started with a Tamron 70-150mm f/3.8 CZ-715 Adaptall lens I got thrown in as a freebie when I bought my Nikon F-301. Although I had a vague idea of the Adaptall technology, I knew nothing about this particular lens. While doing research on the lens, I discovered that Tamron had a strong product line of the SP series Adaptall 2 lenses targeted at serious amateurs and professional photographers. One lens, in particular, piqued my interest: Tamron SP 300mm f/5.6 Adaptall 2 54B. While this model is a bit slow, it has an impressive 300mm focal length and features 1:3.3 macro capabilities. More importantly, the lens is rather inexpensive, and I’ve managed to find a unit in excellent condition at a very reasonable price on a local online auction.
Tamron also produced a 2x converter for use with Adaptall 2 lenses, and I was lucky to find one on eBay. This converter doubles the focal length, but it does so at the expense of the aperture. So the converter transforms a Tamron SP 300mm f/5.6 into a 600mm lens with the maximum aperture of f/11. Tamron lenses with the Adaptall 2 adapter for Nikon F mount are compatible with Nikon’s analog and digital SLRs. When bolted onto a Nikon DSLR with a DX sensor, the lens’ focal length equals 450mm. Add the 2x tele converter, and you get an whopping 900mm focal length.
To test the lens, I went to our local botanical garden. I started with my Nikon F-501 film SLR loaded with Fujifilm Fujicolor C200.
I also tried the lens with my trusty Nikon D90 DSLR. Using Tamron Adaptall lenses on a modern DSLR is only possible in the Manual mode. The camera can’t read aperture values either, and you have to switch to manual focusing. In other words, shooting with the Tamron SP 300mm f/5.6 Adaptall 2 lens is a full-manual affair. On the positive side, focus confirmation seemed to work just fine.
So how did the lens perform? For its age, the lens did admirably well. Sharpness is good, and the lens produces pleasing and creamy bokeh. Overall, it’s not so shabby for a twenty-something-year old lens, especially considering the price.
By the way, if you are looking for information about Tamron’s Adaptall lenses, the Adaptall-2.org website got you covered.