Search found 60 matches

by nic
Fri Jan 21, 2022 12:20 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: No bugs but buds!
Replies: 8
Views: 948

Re: No bugs but buds!

beautiful picture, very nice especially the combination of colors!
by nic
Fri May 21, 2021 5:51 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Portulaca seeds
Replies: 15
Views: 2035

Re: Portulaca seeds

After watching this thread develop toward a fairly confident ID, I ordered a small pack of "portulaca grandiflora double mix" seeds which just arrived. This is only a quick "news" post as I happened to be online anyway - proper pics another time. First impressions: the seeds are tiny. I expected la...
by nic
Mon May 17, 2021 3:46 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Portulaca seeds
Replies: 15
Views: 2035

Re: Portulaca seeds

Searching with some more patience I've also found few images and infos of Portulaca metallic looking seeds. All they point to other species than P. oleracea for example, searching for 'portulaca grandiflora seeds', images with seeds very similar to those photographed appear. So it may be that I hav...
by nic
Sun May 16, 2021 10:52 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Portulaca seeds
Replies: 15
Views: 2035

Re: Portulaca seeds

So now I'm wondering if this description is incorrect/incomplete, or if perhaps there is a closely related species for which metallic sheen is a distinguishing feature. So many questions, so little time... --Rik Very interesting Rik, I will search the net too (so far I have found the description of...
by nic
Sun May 16, 2021 10:51 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seeds

Could it be very diffuse light allowing the interference to show through a thin top layer? I get the same thing with black beetles. If you diffuse the light enough (a lot - beyond ridiculous) then sub-surface patterns and colours start showing clearly instead of the outer surface. Doesn't look anyt...
by nic
Sat May 15, 2021 11:16 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Portulaca seeds
Replies: 15
Views: 2035

Re: Portulaca seeds

So now I'm wondering if this description is incorrect/incomplete, or if perhaps there is a closely related species for which metallic sheen is a distinguishing feature. So many questions, so little time... --Rik Very interesting Rik, I will search the net too (so far I have found the description of...
by nic
Mon May 10, 2021 10:10 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Portulaca seeds
Replies: 2
Views: 545

Re: Portulaca seeds

Monkeyhanger wrote:
Sun May 09, 2021 12:22 pm
Thanks for the seeds-didn't realise how small they are :)
Photo taken with Nikon TM 10x mounted on bellows and Sony A6400
2021-05-09-14.29.26 ZS DMap.jpg
nice colors! the strange thing is that the colors of these seeds are different depending on who is photographing them!
by nic
Tue Apr 27, 2021 10:05 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Portulaca seeds
Replies: 15
Views: 2035

Re: Portulaca seeds

"They maintain their metallic aspect at all magnifications. I plan to grow some of them to see if they produce such beautiful seeds"



Congratulations on the result, really beautiful colors! I was also thinking about growing some of these seeds, hoping they will germinate!
by nic
Sun Apr 04, 2021 10:22 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seeds

Are these seeds natural or bought from a commercial source? In the second case one possible explanation of the interference colors could be a chemical treatment deposited in fine layers I don't think that the colors could be due to excessive light diffusion, in fact the opposite seems more likely t...
by nic
Sat Apr 03, 2021 10:15 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seeds

Guppy wrote:
Sat Apr 03, 2021 5:59 am
Hi Nic

Very nice pictures, I like them very much!
Did you use LED for lighting?

Kurt
Yes, I used 4 led spotlights of 3.8w each, and also I put a white diffuser ring around the seeds ..
by nic
Sat Apr 03, 2021 10:11 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seeds

Could it be very diffuse light allowing the interference to show through a thin top layer? I get the same thing with black beetles. If you diffuse the light enough (a lot - beyond ridiculous) then sub-surface patterns and colours start showing clearly instead of the outer surface. Doesn't look anyt...
by nic
Fri Apr 02, 2021 12:07 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seeds

I'm still scratching my head over the fancy colors of these things. I stopped by the garden store a couple of days ago, found some purslane seeds in a transparent envelope, and with 10X magnifier they showed no color at all. Even more interesting, http://idtools.org/id/table_grape/weed-tool/key/Gra...
by nic
Wed Mar 03, 2021 4:07 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seed

This is really interesting! It seems like all the purslane seeds that I find by image search look just dull blackish. But on the other hand all those pictures show the seed(s) so much smaller that the colors would average out anyway. Do all purslane seeds have these colors, or is this seed special,...
by nic
Wed Mar 03, 2021 11:52 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seed

Pau wrote:
Tue Mar 02, 2021 2:14 am
Very nice colors and texture!

ADMIN NOTE:
Please note that this thread is better placed here at Technical and Studio Photography -- Macro and Close-up forum. Moved from Nature Photography -- Macro and Close-up
Thanks Pau for the appreciation ... and the right positioning of my photo!
by nic
Wed Mar 03, 2021 11:48 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Purslane (Portulaca oleracea) seeds
Replies: 21
Views: 4313

Re: Purslane (Portulaca oleracea) seed

MarkSturtevant wrote:
Mon Mar 01, 2021 5:23 pm
Very beautiful! It looks kind of like a fossil ammonite.
Thanks Mark!