Vitamin C


coker

Link Posted 11/05/2021 - 18:10
Crystals grown in a small jar of concentrated vitamin c solution, over last night.




Placed on a glass slide & lit from below, diffused AF200T flash.

K5, 100mm DFA Macro, Pentax Auto Bellows M.
Combine ZP.
Elements 11.
The more I look, the more there is to see!

pschlute

Link Posted 11/05/2021 - 18:17
Very effective, I love it.
Peter



My Flickr page

Sry

Link Posted 11/05/2021 - 21:24
'Titanic' immediately came to mind Roger - steamship and iceberg all-in-one. Mesmerizingly intricate shapes and light.

womble

Link Posted 11/05/2021 - 21:26
Superb.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

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coker

Link Posted 11/05/2021 - 22:45
Thanks for your thoughts, All.
Actually, I was surprised to see the crystals there this morning.
The solution was saturated &, I think, evaporation (of some of the water) overnight change the state of the solution from concentrated to saturated.
Leaving the solution no choice but to form crystals at the bottom of the pot.

Thanks for looking,
Roger.
The more I look, the more there is to see!
Last Edited by coker on 11/05/2021 - 23:06

davidwozhere

Link Posted 11/05/2021 - 23:53
Fascinating. What size is the clump? I'm guessing at 2 or 3 millimeters?
Both the *istDS and the K5 are incurably addicted to old glass

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Chrism8

Link Posted 12/05/2021 - 07:39
Superb
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax 150 -450 F4.5 / 5.6, Pentax FA 24 - 70 F2.8

Sigma 100-300 F4, Samyang 14mm F2.8, Pentax 70-200 F2.8

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LennyBloke

Link Posted 12/05/2021 - 08:27
Chrism8 wrote:
Superb

+1
LennyBloke

Mike-P

Link Posted 12/05/2021 - 09:42
Remind me to stop eating oranges.

Great idea though, very interesting.
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swarf

Link Posted 12/05/2021 - 09:43
Great idea, and execution.

Phil
K-5iiS; K-r; ME Super; ME; DA* 16-50 f2.8; DA 18-135 WR; DA 55-300 WR; HD DA 15mm F4 ED AL Limited; FA 50mm f1.4; A50mm f1.7; DAL 18-55mm; M40mm f2.8; + assorted non-Pentax lenses

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Lubbyman

Link Posted 12/05/2021 - 12:13
Wonderful! And nostalgic. It's the sort of thing that first got me interested in chemistry (many, many years ago...).

coker wrote:
The solution was saturated &, I think, evaporation (of some of the water) overnight change the state of the solution from concentrated to saturated.

Thermal and density gradients, convection and solubility varying with temperature probably had a role in it. One of my children once grew a 'huge' (2+ inch long) crystal of copper sulphate by suspending a tiny crystal in a jar of solution and leaving it on a window ledge. After a while, the crystal started to shrink and small crystals grow on the bottom of the jar, just like yours. It could all be explained by convection currents, differential solubility, density gradients etc. More importantly, the main crystal was quickly removed and varnished while it was still big enough to be impressive. I think she still has it.

Steve

K10D

Link Posted 14/05/2021 - 07:23
Top work. Cannot be bettered.

Best regards

LongTimeLurker

Link Posted 14/05/2021 - 23:37
A fascinating subject and beautifully presented. Well done you.
Nigel.

Getting older and grumpier. Taking longer to decide which lens to use today.

K5 with auto-everything lenses
A collection of manual primes to keep me in touch with the pleasures of doing it old-school.
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