Author Topic: August 2020  (Read 25042 times)

Frank Fremerey

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Re: August 2020
« Reply #90 on: August 09, 2020, 16:48:38 »
Great samples on the other thread Erik.

  I hope today´s image counts as it not made by me but "of me". Taken by Olga that same hikind day. Also Z6 and 24-70 F4s, very esay to carry around. Olga names the Z6 the "good and easy one" From film to digital and seeing the image instantly on the back screen, now to see it on the evf even before you shoot. She likes it a lot.

  Under the waterfall the sensation of nature´s power is strong and energy cleansing.

Paco, the body!
You are out there. You and your camera. You can shoot or not shoot as you please. Discover the world, Your world. Show it to us. Or we might never see it.

Me: https://youpic.com/photographer/frankfremerey/

Akira

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Re: August 2020
« Reply #91 on: August 10, 2020, 00:50:44 »
From the stroll of the last night.
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

golunvolo

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Re: August 2020
« Reply #92 on: August 10, 2020, 01:20:12 »
From the stroll of the last night.


 パコ?
Paco, the body!

Thank you Frank  ;D ;)


Akira

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Re: August 2020
« Reply #93 on: August 10, 2020, 02:05:34 »
パコ?

LOL, Paco.   ;D

That "パソコン" reads "pasokon" and means "personal computer" (perso-con).
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

golunvolo

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Re: August 2020
« Reply #94 on: August 10, 2020, 03:57:15 »
Pretty close  ;D ;D ;D

Akira

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Re: August 2020
« Reply #95 on: August 10, 2020, 05:44:27 »
Pretty close  ;D ;D ;D

Paco, I'll make an image whenever I find any "パコ" sign for you.  :D
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Akira

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Re: August 2020
« Reply #96 on: August 10, 2020, 13:18:25 »
From the same usual place of mine...
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

golunvolo

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Re: August 2020
« Reply #97 on: August 10, 2020, 13:19:43 »
Thank you Akira  ;)


   Last part of the free day: wine tour and testing. All done with the Z6 and 24-70 f4S.

 

golunvolo

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Re: August 2020
« Reply #98 on: August 10, 2020, 13:26:32 »
From the same usual place of mine...

   Akira, there is something about how you manage to get something different from the same vantage point. It is extremely interesting and it changes the perception and how to look at the image. The changes, even if strong, are more subtle because of the amount common details present in many of them. There is a very recent tendency in modern dance that deals with a similar concept. The performer tries to focus in the differences in similar movements, sometimes miniscule, to find the finer details, the meaning, the identity. Introspection and laser like focus is needed. Many benefits spawn from it nonetheless a extra high awareness.

  You got me thinking and paying attention.
   Thanks for sharing it all.

Birna Rørslett

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Re: August 2020
« Reply #99 on: August 12, 2020, 00:12:17 »
A tangential line of interest for me is the occurrence of some parasitic fungi on my aquatic plants. These organisms have evolved into a highly sophisticated relationship to their hosts, wanting to be supplied with all ingredients required for their own existence and propagation, but not to an extent that kills all potential hosts. So there is a delicate balance in play here. In our Covid-19 impacted times it bears in mind that the entire biosphere handles a myriad of such balancing acts between parasite and host. The C-19 virus is just one species with a transient impact span within the individual host. The fungi on aquatics typically are stenophagous, i.e. only occurring on a few related host plants. Thus they can be of assistance in determining host ID, or even used for biological control of their host(s).

Oh well. This summer I had smut fungi of the genus Doassansia on my short list as this genus specialises on aquatic plants. Of the 3-4 species likely to be found in Norway, D. sagittariae apparently is the most ubiquitous. It parasitises only Sagittaria spp. and in my country, only Arrowhead S. sagittifolia, which has a limited distribution within Norway. Fortunately I'm located at the "epicentre" of its distribution. So I battled against blood-thirsty midgets, mosquito, horseflies, and sundry other environmental pests in order to collect my smut fungi samples the last few days.

The Arrowhead Smut infests the foliage, either aerial leaves or floating leaves, to make circular discoloured leaf spots. Within the centre of the spots one can with the naked eye just barely recognise darker patches which are light brown spore balls with hundreds of smut spores enveloped by sterile hyphae. The spore balls being embedded into the plant tissue presents a challenge if you wish to photograph them, as  the overlaying tissue of course smears everything. You can see them, but there is no detail at all, just a shaded outline.

People knowing me know I am fond of challenges, so here is what I did: First, insert a leaf with smut infestations into boiling water for 30 secs. This will stop any photosynthetic activity. Then, using a water bath, boil the leaf in 70% IPA (I reserve ethanol for private consumption so isopropyl alcohol has to do) for 5 minutes, rinse in hot then cold water 3 times, soak in 5% sodium hypochlorite for 10 minutes, rinse 3 times using hot water, dry sample and examine whether it stills smells of bleach, if so repeat rinsing until there is no foul odour. Finally add Acridine Orange dye in 2% acetate and let it stand overnight. Next day, rinse in water until no colour dye leaks out, then boil in 70% IPA for 3 minutes, rinse 3 times in water. The sample should now be almost colourless but with an orange hue to it.

Using a Convoy UV LED torch (365nm) for illumination, the spore balls now had a beautiful UV-induced (UVIVF) fluorescence and showed a lot of detail. Even the individual spores of the outer cortex layer were immediately visible. The spore balls are up 50-80 um in diametre, thus thinner than a Nordic hair and the individual spores are approx. 8-9 um.

Camera: Z7,  Mitutoyo 10x objective, Convoy UV-LED 365. The scale bar of the cropped image shown below is 1mm.

Hugh_3170

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Re: August 2020
« Reply #100 on: August 12, 2020, 00:29:49 »
Worlds within worlds; thank you for the explanations of the subject, its preparation, and of course the image.  Quite some effort here.  ;D
Hugh Gunn

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Re: August 2020
« Reply #101 on: August 12, 2020, 01:35:10 »
Another nice story of the interface between biological and photographic worlds.  Thank you Birna.
Keith B., Santa Monica, CA, USA

Akira

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Re: August 2020
« Reply #102 on: August 12, 2020, 01:59:53 »
   Akira, there is something about how you manage to get something different from the same vantage point. It is extremely interesting and it changes the perception and how to look at the image. The changes, even if strong, are more subtle because of the amount common details present in many of them. There is a very recent tendency in modern dance that deals with a similar concept. The performer tries to focus in the differences in similar movements, sometimes miniscule, to find the finer details, the meaning, the identity. Introspection and laser like focus is needed. Many benefits spawn from it nonetheless a extra high awareness.

  You got me thinking and paying attention.
   Thanks for sharing it all.

Paco, thank you for kind words and food for thoughts.  That makes a lot of sense and should apply to any kinds of art form.
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Akira

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Re: August 2020
« Reply #103 on: August 12, 2020, 02:00:35 »
Camera: Z7,  Mitutoyo 10x objective, Convoy UV-LED 365. The scale bar of the cropped image shown below is 1mm.

Amazing tiny universe!
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Frank Fremerey

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Re: August 2020
« Reply #104 on: August 12, 2020, 17:06:41 »
My girlfriend and me love to cook ... she even made a little business from her talent ... We always have some great food & wine on our tables ... (IQ phone in the night ...)
You are out there. You and your camera. You can shoot or not shoot as you please. Discover the world, Your world. Show it to us. Or we might never see it.

Me: https://youpic.com/photographer/frankfremerey/