Archived posting to the Leica Users Group, 2022/12/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]You just need to keep a little dry ice around for the winter snow... On Mon, Dec 5, 2022 at 10:13 AM Aram Langhans via LUG <lug at leica-users.org> wrote: > 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 > >> > >> > >> _______________________________________________ > >> Leica Users Group. > >> See http://leica-users.org/mailman/listinfo/lug for more information > > -- > 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 > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information -- Don don.dory at gmail.com