Page 1 of 1
Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 7:46 pm
by 75RR
.
Planapo 63x/1.4, DIC, 100µm length, stacked in Photoshop, Marine sample, Alboran Sea.
Girdle view. Upper and Lower valve overlap can be distinguished.
Re: Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 9:03 pm
by deBult
Nice.
(To get to this quality level, I have to practice, practice and ehhh practice.)
Re: Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 9:38 pm
by KD Arvidsson
Very beautiful 75RR
You are a very good micro-photographer! Thanks for sharing! //KD
Re: Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 9:43 pm
by WhyMe
Very nice!
Re: Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 9:53 pm
by Hobbyst46
75RR wrote: ↑Sun Mar 22, 2020 7:46 pm
Girdle view. Upper and Lower valve overlap can be distinguished.
Fantastic image ! they are so nicely distinguishable !
Do you think that this type of overlap can be identified with phase contrast ? (of any diatom, not necessarily this one)
Re: Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 10:32 pm
by hkv
Beautiful!
Re: Trachyneis aspera (another)
Posted: Sun Mar 22, 2020 10:34 pm
by 75RR
.
Many thanks deBult, KD Arvidsson, WhyMe, Hobbyst46 and hkv. Very kind.
Hobbyst46 wrote: ↑Sun Mar 22, 2020 9:53 pm
Do you think that this type of overlap can be identified with phase contrast ? (of any diatom, not necessarily this one)
David Walker's article
Diatom Pleurosigma angulatum - a versatile 'demonstration' subject. demonstrates the NA (Numerical Aperture) penalty that Phase levies.
I think you would therefore need a Phase objective with a very high NA to manage it.
Mind you, he also shows that using a Phase objective in Brightfield (and I imagine even more so with oblique) retains or at least pays a smaller NA penalty.
http://www.microscopy-uk.org.uk/mag/ind ... -test.html
Re: Trachyneis aspera (another)
Posted: Mon Mar 23, 2020 12:21 am
by Seb28
Great image.
Re: Trachyneis aspera (another)
Posted: Mon Mar 23, 2020 2:13 am
by sinabro
Best quality. Beautiful
Re: Trachyneis aspera (another)
Posted: Mon Mar 23, 2020 6:46 am
by 75RR
Many thanks Seb28 and sinabro
Re: Trachyneis aspera (another)
Posted: Tue Mar 24, 2020 7:40 pm
by mintakax
Another beautiful shot Glen.
Re: Trachyneis aspera (another)
Posted: Wed Mar 25, 2020 6:09 am
by 75RR
Many thanks mintakax
Re: Trachyneis aspera (another)
Posted: Wed Mar 25, 2020 1:43 pm
by Wes
Amazing shot! You are diatom master of the Alboran Sea.
Re: Trachyneis aspera (another)
Posted: Wed Mar 25, 2020 3:26 pm
by 75RR
Many thanks Wes
I am fortunate that the diatoms in the Alborán Sea are photogenic
Map for those who might not have heard of the Alborán Sea or can't place it.
Hornblower fans might recognize some of the landmarks.
Re: Trachyneis aspera (another)
Posted: Fri Mar 27, 2020 3:43 am
by Sabatini
shock:
Re: Trachyneis aspera (another)
Posted: Fri Mar 27, 2020 9:06 am
by 75RR
Sabatini wrote: ↑Fri Mar 27, 2020 3:43 am
:shock: :shock: shock:
Hi Sabatini, not sure if you are referring to the Diatom or the fact that (to paraphrase a 'famous' american)
I can see Morocco from my window!
Re: Trachyneis aspera (another)
Posted: Sat Mar 28, 2020 2:58 am
by Sabatini
Hello, sir.
Nice try.
I mean that beautiful diatom, it seems performs at the limits of optical resolution.
Re: Trachyneis aspera (another)
Posted: Sat Mar 28, 2020 5:34 am
by 75RR
Many thanks Sabatini, glad you liked it!
You are a very good micro-photographer! Thanks for sharing! //KD