Given lighting is not a problem, can you hit a limit where you have too much extension tubes (a very long tube) and the quality of the image will suffer? For example a diffraction limit will be hit ...
What does f-stop mean? Is it the same thing when people say "2 stops" for example?
I recently purchased a Panasonic GF1 with the 20mm pancake lens. It's by far the nicest camera I've ever owned and I'm really excited to learn the basics of digital photography (primarily street ...
I own a Canon 450D with just the standard lens kit that comes with it (poor so won't be buy a new lens for a while) and one thing I tend to struggle with is shotting in lower light conditions, indoors ...
How does aperture affect my photographs? Why should I care about the aperture with which a photo was taken?
I have been shopping around for a prime lens for my Nikon D50. I noticed that the 1.8 is hundreds of dollars cheaper than the 1.4 AF-S. What will I gain for that cost difference? Is it really ...