Search found 31 matches

by jac B
Thu Aug 13, 2020 4:32 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

Hi Macro_Cosmos,
Thank you.
Regards, jac
by jac B
Thu Aug 13, 2020 1:57 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

... there's no reason to buy Thorlabs' motorised rails. They require coding, they require an expensive K-cube controller ($800 I think) and the power supply is also $300, you need a controller/interface that goes beyond "move rail to POS A", you code your own. Want the controller to also take pictu...
by jac B
Thu Aug 13, 2020 1:20 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

this is one of the most helpful forums I've ever encountered, if you have the feeling people don't want to help you or are being rude then I suspect you're doing something wrong. chris, Are you neglecting lothman’s behaviour in this topic by referring to a forums course of events? That this is a he...
by jac B
Wed Aug 12, 2020 9:57 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

lothman,
you can’t bear criticism, acting rude by (keep) speculating, generalizing.
our communication tells about both of us.
jac
by jac B
Wed Aug 12, 2020 3:57 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

Rik, Thanks. I meant motorized stage, instead of motor. I want (as a hobbyist) to compare and choose (the values for parameters from) motorized stages which are under/best/over dimensioned for (a) certain focus stacking task(s)/application(s). Motorized stages like e.g.: - https://cognisys-inc.com/f...
by jac B
Wed Aug 12, 2020 3:53 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

lothman,
I agree that we disagree.
You did not give values, don’t know values for the StackShot.
The answer on your speculations are in my other topics.
Jac
by jac B
Wed Aug 12, 2020 1:28 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

elf,
I ask for values.
You try to impose your opinion, did not give values, don’t know values :shock:
Jac
by jac B
Tue Aug 11, 2020 1:55 pm
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

I am not aware of any studies for most of your parameters. In that quite long list, the only value that I have ever cared much about is "min achievable incremental movement". See https://www.photomacrography.net/forum/viewtopic.php?t=16323 for a study of that, using one of the earliest StackShot co...
by jac B
Tue Aug 11, 2020 1:17 pm
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Re: Features for a motorized stage (focus stacking)

elf wrote:
Tue Aug 11, 2020 12:16 pm
It's reasonable, but you should first define your tolerances for each of those fields.
Hi elf,
Can you explain, why should I first define my tolerances for each of those fields for the StackShot, before that someone mention the values for those fields for the Stackshot?
Regards, jac
by jac B
Tue Aug 11, 2020 7:48 am
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 2543

Features for a motorized stage (focus stacking)

Hi, I read that features for a motorized stage are e.q. travel range, velocity (max, min). acceleration (max, min, at a load), resolution, bidirectional repeatability, flatness and straightness over full travel range, horizontal and vertical load capacity (max), min achievable incremental movement, ...
by jac B
Thu Aug 06, 2020 4:48 am
Forum: Beginners Macro
Topic: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO
Replies: 11
Views: 1870

Re: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO

How about: https://www.microscope.com/120-led-diffused-dome-ring-light-esd-safe.html Hi NU, Thanks for helping. I want to mount a 'lighting dome' on a mounting plate in the exact position as drawn in the attached file. Can you explain how to, because the dome you refer to has an upper ring attachme...
by jac B
Wed Aug 05, 2020 11:46 pm
Forum: Beginners Macro
Topic: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO
Replies: 11
Views: 1870

Re: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO

Hi Ichty,
Thanks for helping.
Regards, Jac
by jac B
Wed Aug 05, 2020 11:50 am
Forum: Beginners Macro
Topic: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO
Replies: 11
Views: 1870

Re: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO

FYI: Illuminating nature’s beauty: modular, scalable and low-cost LED dome illumination system using 3D-printing technology, https://www.nature.com/articles/s41598-020-69075-y#Fig1
by jac B
Wed Aug 05, 2020 11:11 am
Forum: Beginners Macro
Topic: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO
Replies: 11
Views: 1870

Re: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO

Scarodactyl wrote:
Wed Aug 05, 2020 8:03 am
I think Scienscope sells a much cheaper domd illuminator. That might at least serve as a starting point.
Hi Scarodactyl,
Thanks for helping.
Regards, Jac
by jac B
Wed Aug 05, 2020 4:27 am
Forum: Beginners Macro
Topic: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO
Replies: 11
Views: 1870

Re: Q: (dome, sheet, tilted) lighting for DSLR+tube lens+plan APO

Hi Ichty,

Thats a lot of money for the lighting dome.

Thanks for explaining. Assumption: for a dslr+tube lens+plan apo setup it must be possible to move a plan apo (before or during stacking) into a lighting dome, due to working distance. Correct?

Regards, Jac