Re: Newbie question about macro with DSLR

Eric Smith <eric@xxxxxxxxxxxx> wrote:
If I buy an objective lens for a microscope, do you have any recommendations
as to mounting it? How do I determine how far from the sensor it should be
mounted? (Maybe I need to go back to school to study optics!)

Mount it to a toolmaker's metallurgical microscope frame.

he just need the objective
and some sort of illumination system. Olympus makes, or at least used to make,
the best equipment for this.

I've looked at the Olympus site, and am somewhat lost. If it's not too
much trouble, can you give me any more specific idea as to what I'm looking
for?

Olympus makes good equipment. So does Nikon. Oddly
enough, for your purposes it will probably be best to
look at some fairly old used equipment, including
Unitron.

The Olympus webpage has much good info, and these are a
couple to start with:

http://www.olympusmicro.com/primer/faq.html

This one is long with lots of general information:

http://www.olympusmicro.com/primer/microscopy.pdf

Do read the whole thing, but first you might want to check these
two sections:

page 22, "Reflected Light Microscopy"
page 37, "Digital Photomicrography"

Here is another very useful URL which discusses selection
of projection lenses for photomicography:

http://krebsmicro.com/relayDSLR/relayoptics1.html

This URL will help with general photomacrography information
and with the terminology and has a chart of abbreviations:

http://www.dyerlabs.com/microscopy/special.html

--
Floyd L. Davidson <http://www.apaflo.com/floyd_davidson>
Ukpeagvik (Barrow, Alaska) floyd@xxxxxxxxxx
.