Some General Links
A really nice description of chromatic abberation, complete with some math and everything... :-)
A really nice description of chromatic abberation, complete with some math and everything... :-)
Some software for photographic freelancers:
FotoBiz looks pretty comprehensive, with a FotoQuote stock pricing module. It's written in FileMaker and is extensible. $229.
I've been trying to find some relatively easy software solutions to the problem of tracking photography submissions to various publishers. There are a bunch of options for freelance writers, but none I can find for photographers.
I doubt whether it's right to call them 'cult classics,' but this web page does a great job of telling you which third-party lenses are worth checking out.
A variety of topics dealing with editing digital images.
I've recently been learning a lot about the L*a*b (or Lab) color space, for image manipulation.
To see why, here's a simple experiment you can do: Open up an image in Photoshop and convert it from RGB mode to Lab Color mode. Add a Curves effect layer (or just edit the curve) and tweak the a and b channels. Choke them down so that a 90% input equals a 100% output, and a 10% input equals a 0% output.
Now compare the original image to the tweak. You can't do this by simply turning up the saturation, either...
The Tamron Professional Learning Center isn't so professional as you might think, but it's also a whole lot of useful information.
A Simplified Zone System For Making Good Exposures
Norman Koren walks you through the basics.
I'm a sucker for a DIY project:
Build a Pentax Cable Release F out of spare parts.
And to replace the CS-205:
A while back, I got ahold of a Tamron CF Tele-Macro 80-210mm f/3.8-4. It was my first experience with a Tamron Adaptall-2 lens.
I like the lens. The bokeh's a little harsh, but it's very sharp, built like a tank, and can focus down to just under a meter. However: It came with a plain-Jane Pentax K adaptor.