Best dissecting microscopes for botanical subjects?

Bracey Tiede
Sun, 09 Feb 2014 09:03:37 PST

Saxon Holt has been experimenting with software and photos to create these
composites. You may wish to communicate with him.

San Jose

-----Original Message-----
From: []
On Behalf Of David Ehrlich
Sent: Saturday, February 08, 2014 7:56 PM
To: Pacific Bulb Society
Subject: Re: [pbs] Best dissecting microscopes for botanical subjects?

I had heard about, though I don't know where to find more information on it,
a camera + computer setup where the camera took a series of pictures with
gradually changing focus settings, and the pictures were then combined by
the computer choosing only the in-focus portions to create the composite. 
This would be extremely useful  in creating substantial depth of field for
close-ups, and macro photography generally.  If anyone knows anything about
this equipment, I'd be very interested.

> From: Tim Eck <>
>To: 'Pacific Bulb Society' <> 
>Sent: Saturday, February 8, 2014 12:06 PM
>Subject: Re: [pbs] Best dissecting microscopes for botanical subjects?
>It may be worth mentioning if anyone here is a software guru or twelve year
>old, there are some really cool things you can do with photomicrographs
>nowadays to remove all blurring from limited depth of field.  It involves
>taking several images where the only thing you change is the focal distance
>and then create a composite saving only the in-focus parts of each image.
>This is surprisingly simple for digital images since a sharp sub-image or
>neighborhood is defined by high local variation in brightness as measured
>standard deviation or range.
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