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Take a peek almost every day---at least when I'm in town. :)

Another possibility is the Wayback Machine. Start here: http://web.archive.org/web/*/http://rmp.opusis.com/mailman/listinfo/cameramakers

From my quick spot check some of the archive seems spotty:...

You need to differentiate between lossy and lossless compression. A lossy compressed format like jpeg will, as you note, lose quality because it throws out information. A lossless compression...

I was hoping someone else would know the answer... :)

When I was researching the Sekonic L-558 I remeber reading about compatability problems between non-US meters and the remote flash units used...

The magnetic material won't be all that healthy for floppy disks (if you're still using them for some reason). It will also deflect the electrons in a CRT as they travel from the gun to the...

Sorry if this is a bit long.

There are simple answers and there are better answers. I can attempt a simple answer, although I warn that I've been struggling with how to put it. It might help to...

To give an idea of the range of the standard hood, I use one for lenses from 90mm to 240mm. (My lengths exactly match yours---with the exception of the 75mm you're getting.) On the 90mm (with a...

Let me take the picket fence mental picture. I think it's helpful to think of this in terms of how the relationships change as things scale. Let me elaborate:

Imagine a 35mm camera with a 50mm...

The classic definition I know is as follows.

Consider the figure below:


x y-x
<------------> <------>
------------------------ -
| | | |
| ...