Search found 2471 matches

by Adalbert
Fri Mar 29, 2024 9:31 am
Forum: Equipment Discussions
Topic: No sharpness when using mitutoyo 10x (also halo, low contrast)
Replies: 6
Views: 149

Re: No sharpness when using mitutoyo 10x (also halo, low contrast)

DOF depends on the NA (numerical aperture)
e.g.
NA=0.14 => DOF=0,028061mm
NA=0.28 => DOF=0,007015mm
NA=0.42 => DOF=0,003118mm
NA=0.55 => DOF=0,001818mm
NA=0.75 => DOF=0,000978mm

You should take at least one photo inside the DOF (I take 3 :-)

Best, ADi
by Adalbert
Fri Mar 29, 2024 6:45 am
Forum: Equipment Discussions
Topic: No sharpness when using mitutoyo 10x (also halo, low contrast)
Replies: 6
Views: 149

Re: No sharpness when using mitutoyo 10x (also halo, low contrast)

Hi Radek, In my opinion, the resolution is OK, but somehow the light does not come as desired. Could you post a picture of your setup? I usually use two cylinders, one on the lens and one around the subject: e.g. https://www.facebook.com/photo/?fbid=140151464300136&set=a.120670269581589 BTW, the dif...
by Adalbert
Sat Mar 23, 2024 8:45 am
Forum: General Discussion Forum and Community Announcements
Topic: Loss of Robert OToole
Replies: 29
Views: 867

Re: Loss of Robert OToole

First of all, my sincere condolences to the family!
He will remain in my memory as,
a very friendly and competent person.
I will miss him.
ADi
by Adalbert
Fri Mar 22, 2024 12:47 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: some scales
Replies: 132
Views: 15165

Re: some scales

Smokedaddy wrote:
Thu Mar 21, 2024 10:26 am
Excellent
Many thanks !
by Adalbert
Thu Mar 21, 2024 4:55 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: some scales
Replies: 132
Views: 15165

Re: some scales

Hello everyone,
Animated rocking stereo:
Image[/url]
Best, ADi
by Adalbert
Thu Mar 21, 2024 3:44 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: some scales
Replies: 132
Views: 15165

Re: some scales

Hello everyone, The scales of my new butterfly are beautifully coloured, but they are not on top of each other, but stand far apart. In some places they stand out really far. For this reason, in my opinion, it is very difficult to take photos of the structure of such scales at high magnification. e....
by Adalbert
Thu Mar 21, 2024 3:42 am
Forum: Photography Through the Microscope
Topic: Soy Sauce landscape
Replies: 7
Views: 458

Re: Soy Sauce landscape

very nice :smt038
by Adalbert
Wed Mar 20, 2024 10:24 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: some scales
Replies: 132
Views: 15165

Re: some scales

Hello everyone,
I actually wanted to wiggle around the other diagonal but got this one (with Shift XY -+4%)
Image
Best,ADi
by Adalbert
Wed Mar 20, 2024 9:54 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: some scales
Replies: 132
Views: 15165

Re: some scales

Macrero wrote:
Tue Mar 19, 2024 1:39 pm
Good work and nice scales pics, with and without pollen :P
Thank you very much, Macrero!
At the moment I'm trying to visualise the scales in Rocking Sterero and 3D.
For this you need deep stacks in particular so that the effect is clearly visible.
Best, ADi
by Adalbert
Wed Mar 20, 2024 9:49 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Scales thread
Replies: 38
Views: 1494

Re: Scales thread

Thank you, Adi, sure, long WD is always an advantage, regardless of subject's flatness. High-NA, short-WD objectives are fun to play with, but kinda pain in the rear to use... This is with TU Plan 100/0.80 ELWD + 105mm tube lens at 52.5X on sensor. Stack was shot with continuous lighting and traffi...
by Adalbert
Wed Mar 20, 2024 3:18 am
Forum: General Discussion Forum and Community Announcements
Topic: "naturefold" -- field photography with Laowa 2.5-5X and focus stacking
Replies: 4
Views: 162

Re: "naturefold" -- field photography with Laowa 2.5-5X and focus stacking

Hello Rik,
Great, but you have to have a steady hand.
So, not for grandpas / grannies with shaky hands :-(
Best, ADi
by Adalbert
Wed Mar 20, 2024 2:05 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Scales thread
Replies: 38
Views: 1494

Re: Scales thread

Hello Macrero,

Great photo!

But it is also a fantastic lens with a long WD.
Here you can clearly see how important the WD is.

Best, ADi
by Adalbert
Wed Mar 20, 2024 1:54 am
Forum: Photography Through the Microscope
Topic: Surirella lacrimula
Replies: 10
Views: 558

Re: Surirella lacrimula

Hello James,
That looks great, well done!
Best, ADi