[Leica] Snow under the scope

Aram Langhans leica_r8 at hotmail.com
Mon Dec 5 08:13:07 PST 2022


Thanks Don and Ric.  Snowed again last night but I slept through it.  I 
have a few other ideas on a background.  Read somewhere the best flakes 
are between 20 and -15F.  Still kind of warm at 28 this AM.

Aram

On 12/4/2022 4:34 PM, Don Dory wrote:
> Really nice graphics.
>
> On Sun, Dec 4, 2022, 3:41 PM Aram Langhans via LUG <lug at leica-users.org>
> wrote:
>
>> Well, finally some snow that looked good enough to try.  Nice looking
>> flakes, but it is not much below freezing, so hard to keep then intact
>> to put them under the microscope.  They survive OK, but the light from
>> the scope takes its toll.  It is an overhead LED, but light is still
>> light, and black is still black and absorbs light and heats up.  With
>> only 2 degrees F leeway, it is not enough.  Will have to hope for more
>> snow when it gets colder. Here are are a few first attempts.  I had to
>> change background materials as the one I bought was too fibery and you
>> could hardly see the flakes for the fibers.  These are just black matte
>> board, all I could find that was handy.
>>
>> This one is not too bad as it was setting a bit above the surface of the
>> board, so not too distracting.
>>
>> _DSC2588 (leica-users.org)
>> <http://gallery.leica-users.org/v/Aram/w22_001/s/_DSC2588.jpg.html>
>>
>> This one shows the board texture and you can see where the flake is
>> melting already.
>>
>> _DSC2598-Edit (leica-users.org)
>> <http://gallery.leica-users.org/v/Aram/w22_001/s/_DSC2598-Edit.jpg.html>
>>
>> And this one had melted almost flat on the board so no real separation.
>> The texture of the board is very evident, but still way better than the
>> felt I had originally thought to use.
>>
>> _DSC2590-Edit (leica-users.org)
>> <http://gallery.leica-users.org/v/Aram/w22_001/s/_DSC2590-Edit.jpg.html>
>>
>> I am thinking I will take some microscope slides, freeze them, then put
>> them on the matte board.  They should hold the flakes far enough away
>> from the board surface that the texture might not show up.
>>
>> These are all stacked images of 3-5 images for DOF.
>>
>> Comments and suggestions welcome.
>>
>> Aram
>>
>> --
>> Aram Langhans
>> (Semi) Retired Science Teacher
>> & Unemployed photographer
>>
>> “The Human Genome Project has proved Darwin more right than Darwin himself
>> would ever have dared dream.”   James D. Watson
>>
>>
>> _______________________________________________
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-- 
Aram Langhans
(Semi) Retired Science Teacher
& Unemployed photographer
  
“The Human Genome Project has proved Darwin more right than Darwin himself would ever have dared dream.”   James D. Watson



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