A certain amount of noise can improve the performance of non-linear systems. This sounds like nonsense, but it’s not when you stop to think about it. For example, B&W photographers have long known that a grainier image can often look sharper than a grainless one. If you are interested in the science behind it, this [...]
Posted on September 25, 2006, 12:57 am, by alofsm, under
Photos.
Posted on September 21, 2006, 7:53 pm, by alofsm, under
Photos.
Posted on September 21, 2006, 3:54 am, by matt, under
Optics.
I plan on writing a more complete review of the Sigma 30mm F1.4 with examples and what not sometime over the next couple of weeks, but I thought I post a couple of thoughts on it now. Pros Right focal length; depending on your DSLR 30mm works out ot 45mm or 48mm. Big max aperture; [...]
Posted on September 21, 2006, 2:41 am, by alofsm, under
Photos.
To see a B&W version and a discussion of B&W conversion techniques, see today’s blog post.