Search found 1404 matches

by elf
Mon May 03, 2021 12:45 am
Forum: Equipment Discussions
Topic: Parallel sensor alignment / digital spirit levels
Replies: 12
Views: 453

Re: Parallel sensor alignment / digital spirit levels

I have one I use in woodworking, but I only need to get things aligned to about a degree :D It works fine for that. The display resolution is .01 degree but the accuracy is definitely .1 degree or worse. What are your required tolerances?
by elf
Sun Jan 31, 2021 3:08 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Focus stacking algorithms: Zerene vs Photoshop
Replies: 9
Views: 3135

Re: Focus stacking algorithms: Zerene vs Photoshop

No need to know the algorithms. Just stack the same image with Zerene and Photoshop. I'll guarantee the Zerene image will have fewer artifacts :D
by elf
Tue Jan 26, 2021 2:51 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Auto focussing by moving the camera
Replies: 7
Views: 2638

Re: Auto focussing by moving the camera

I think Zerene Stacker makes steps 2 and 3 unnecessary. IIRC, Zerene Stacker adjusts the individual images in a stack to the magnification of the first image. This means all you need to do for subsequent frames in the panorama is to start at the same Z position.
by elf
Fri Jan 22, 2021 6:00 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Auto focussing by moving the camera
Replies: 7
Views: 2638

Re: Auto focussing by moving the camera

It sounds like you want a spherical macro panorama setup. In order for one to work, the entrance pupil of the lens needs to be at the rotation point of the spherical panorama jig. This implies using bellows to control the focus for focus stacking or moving the subject. If you want to do orthogonal p...
by elf
Tue Sep 22, 2020 12:30 pm
Forum: Equipment Discussions
Topic: Tube clamp (46C) - Wemacro
Replies: 8
Views: 2441

Re: Tube clamp (46C) - Wemacro

Here's a short video on how to model a tube clamp. There is one small mistake in the video: I dimensioned the length of the bottom flat instead of its distance from the center point.

Thorlabs has downloadable models of their tube clamps.
by elf
Mon Sep 21, 2020 9:55 pm
Forum: Equipment Discussions
Topic: Tube clamp (46C) - Wemacro
Replies: 8
Views: 2441

Re: Tube clamp (46C) - Wemacro

I'll be happy to show you how to model one. I don't have all of the specifications for the WeMacro version. It would be best if you requested those directly from WeMacro.
by elf
Mon Sep 21, 2020 11:01 am
Forum: Equipment Discussions
Topic: Tube clamp (46C) - Wemacro
Replies: 8
Views: 2441

Re: Tube clamp (46C) - Wemacro

This is simple enough to model or to make one similar
TubeClamp.JPG
. What program are you using to do the simulation?
by elf
Tue Aug 11, 2020 2:26 pm
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 4577

Re: Features for a motorized stage (focus stacking)

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 If you don't kn...
by elf
Tue Aug 11, 2020 12:16 pm
Forum: Equipment Discussions
Topic: Features for a motorized stage (focus stacking)
Replies: 21
Views: 4577

Re: Features for a motorized stage (focus stacking)

It's reasonable, but you should first define your tolerances for each of those fields.
by elf
Fri Aug 07, 2020 6:44 pm
Forum: Equipment Discussions
Topic: Phase contrast annulus, 3D printing
Replies: 5
Views: 2482

Re: Phase contrast annulus, 3D printing

I would have a hard time 3d printing those threads accurately with my FDM printer. An SLA printer would be a better choice. There are several available now for around $200US.
by elf
Mon Jul 20, 2020 11:40 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Would you recommend a tripod or monopod for macro in the field?
Replies: 23
Views: 7064

Re: Would you recommend a tripod or monopod for macro in the field?

Actually, a device like that would be rather simple to make. Just mount a Stackshot on a pistol grip :-k
by elf
Sat Jul 18, 2020 10:24 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Would you recommend a tripod or monopod for macro in the field?
Replies: 23
Views: 7064

Re: Would you recommend a tripod or monopod for macro in the field?

Somewhere in the archives is a post by LordV showing how he uses a pole or walking stick to stabilize the camera. He also has a Flickr account showing it.
by elf
Tue Jun 23, 2020 11:42 pm
Forum: Equipment Discussions
Topic: Optiphot turret objective centering wrench
Replies: 5
Views: 1828

Re: Optiphot turret objective centering wrench

Nice to see you got the problem sorted.
by elf
Tue Jun 23, 2020 11:37 pm
Forum: General Discussion Forum and Community Announcements
Topic: Forum upgrade completed
Replies: 35
Views: 14746

Re: Forum upgrade completed

The new format is fine with just one tiny niggling little issue. Firefox doesn't show an icon on the tab. I assume you're talking about the tab in the browser tab bar. As far as I know, nothing at photomacrography.net or photomacrography1.net has ever displayed a site-specific tab icon. If you have...