Boring Techie Stuff: How Lens Coating Works!
And Another One: What's "BOKEH", Anyway?
And another: How does Depth-of-Field work?
And another: What's a Diopter? and why do I care? (or, everything you need to know about focusing a lens)
Or how about: How to Spot a Fake Leica


My name's Rick Oleson and this is my web site. Most of it is dedicated to old cameras and photography; there are some other things too, including a few cartoons, some cars & related machinery.... even a little family type stuff.

Even though the front page doesn't change much, I do regularly add stuff to the site; so if you haven't been here in a while come in and wander around - you might find something new.

OK, you're right .... I DON'T add stuff as regularly as I used to. I've taken to posting my photos on my Flickr page instead of making pages for them here. So, if you're interested in my Tech Notes, or an old camera review or a focusing screen or any of that stuff, this is the place; if you'd like to see recent photos, click over to Flickr.

The links below take you to a few examples from my camera collection. The last one takes you over to my Flickr page, which I do a much better job of keeping up do date.

European 35mm SLRs
Japanese 35mm SLRs
European 35mm Rangefinders
American 35mm Rangefinders
Medium Format SLRs
Twin Lens Reflexes

If you happen to be that sort of person (heaven forbid), you might enjoy dropping by the Tinkerer's Corner, where you might find some ideas for wasting time and amazing (or at least bemusing) your friends!

Tech Notes CD
The sketches and notes on the CD are the traces of what is now over 30 years of random tinkering with an embarrassing variety of cameras. If you're familiar with the Tech Notes pages on this site, the contents of the CD are basically the same, except at higher resolution for printing and LOTS more of it (about 500MB) than I could fit on the website.... in all it contains a total of over a thousand sketches and photos covering a wide (and in some cases odd) variety of cameras, lenses and related bits of hardware. It's not a complete overhaul manual in any case, some models are covered much more thoroughly than others; but if you've found the Tech Notes page helpful I'm sure you'll like it. To get a general idea of the basic makes and models that it touches on, CLICK HERE
$25.00 price includes FREE SHIPPING .... ANYWHERE!
(or even better .... $15 for a PDF download online)

Focusing screens for medium format cameras
Click for information

My FAVORITE Photographic Quote!

My Source for World News

Here are links to some of the main sections of the site, in case you're in too much of a hurry to scroll down (but you'll find more stuff if you do):
Tech Notes
Hard-to-Find Parts & Supplies
Camera Stuff
Lens Mount Identification Guide
Gun Stuff
The Museum of Obsolete Technology

Now YOU TOO can look like a Real Professional Photographer!

Recommended Reading Selections for Camera Collectors

Notes on Converting a 1974 Mercedes 450SL to use 21st Century MegaSquirt Electronic Fuel Injection (click on photo above for details)
(may also be useful for other pre-1976 Mercedes and other cars that used Bosch D-Jetronic fuel injection)

More old Mercedes notes: Replacing the covers and padding in the seats (not a real fun job)

Still more Mercedes fun: how to replace the water pump in the 450SL!

So where does it all lead?
The links below lead to collections of photographs from home and abroad, cartoons featuring my (current and former) cats, and examples from my camera collection, as well as other things I'm interested in. Check in again later and see what's new! If you're interested, my email address is

(last updated May 16, 2018)

Some NON-OBSOLETE technology: check out these neat inventions!


  • Photography

  • Camera Stuff

  • Camera Tech Notes

  • Cartoons!

  • Car Stuff

  • Baha'i Faith

  • Links to other camera collecting sites

  • My Dad's Photos of the Graf Zeppelin!

  • This is where I work...

  • Some Previous Olesons

    ...all the news that fits in Lexington...

    This is a really good search engine!