Search found 1524 matches

by Macro_Cosmos
Wed Apr 10, 2024 1:04 am
Forum: Equipment Discussions
Topic: Tubular Varifocal Lenses and Vignetting
Replies: 4
Views: 165

Re: Tubular Varifocal Lenses and Vignetting

Visit a local camera store with the lens with your rig and try it there.
The only person I know who owns this lens unfortunately passed away.
by Macro_Cosmos
Mon Apr 08, 2024 6:37 pm
Forum: Equipment Discussions
Topic: is there an electronic handwheel for stepper driven rails
Replies: 15
Views: 530

Re: is there an electronic handwheel for stepper driven rails

So more the U-DICR route, though I had no idea of that model number specifically and was swimming in a lack of knowledge on which nomarski sliders would be suitable or not. Again, the model number on an illuminator for the light path to check out is helpful/directive. I was looking at various nikon...
by Macro_Cosmos
Mon Apr 08, 2024 6:04 pm
Forum: Equipment Discussions
Topic: Tubular Varifocal Lenses and Vignetting
Replies: 4
Views: 165

Re: Tubular Varifocal Lenses and Vignetting

The only way to know this is to try out. There is no rule.
by Macro_Cosmos
Sat Apr 06, 2024 6:40 am
Forum: Equipment Discussions
Topic: Efficient diffuse macro lighting for SWD objectives
Replies: 13
Views: 413

Re: Efficient diffuse macro lighting for SWD objectives

The MM-33 is from my beginner days, seeking better ways to manipulate diatoms. Three separate controls for x, y, z movement soon proved too cumbersome and slow, so it was "demoted" to coarse probe holder/positioner for a while. That is interesting, how does it compare to the Narishige units? I have...
by Macro_Cosmos
Sat Apr 06, 2024 6:26 am
Forum: Equipment Discussions
Topic: is there an electronic handwheel for stepper driven rails
Replies: 15
Views: 530

Re: is there an electronic handwheel for stepper driven rails

Currently I'm using a controller from MKJZZ based on a raspberry pi with touch screen, see MKJZZ video here . But I'm afraid this route is dead end. Parts I ordered in begin of 2022 are no longer listed and emails to MKJZZ are not answered (hey Peter Lin and Daniel Puschina, are you still kicking?)...
by Macro_Cosmos
Sat Apr 06, 2024 4:42 am
Forum: Equipment Discussions
Topic: Question about Optiphot and infinity corrected objectives
Replies: 9
Views: 300

Re: Question about Optiphot and infinity corrected objectives

You can make an adaptor to mount an infinity corrected trinocular head (or tube lens) onto the optiphot.
The frame is just a frame, it can be replaced with literally anything, a rod, a tower using Lego blocks, a pillar... you name it.
by Macro_Cosmos
Sat Apr 06, 2024 4:40 am
Forum: Equipment Discussions
Topic: Efficient diffuse macro lighting for SWD objectives
Replies: 13
Views: 413

Re: Efficient diffuse macro lighting for SWD objectives

Using a Marzhauser MM-33 micromanipulator as the sample stage is one of the most diatomist things I have ever seen. :shock:
by Macro_Cosmos
Tue Apr 02, 2024 7:27 pm
Forum: Equipment Discussions
Topic: State of high CRI COB lights in 2024? Current recs?
Replies: 6
Views: 449

Re: State of high CRI COB lights in 2024? Current recs?

I have a single high CRI "sun mimicking" COB LED from an old project. The measured CRI was 99.8%. It was very expensive, $150 for a 7.2W job. It is dimmer than a halogen illuminator. The LED was from a custom order and worked quite well. 36V, 200mA, quite weird. I believe the person who designed it ...
by Macro_Cosmos
Tue Apr 02, 2024 6:48 pm
Forum: Equipment Discussions
Topic: is there an electronic handwheel for stepper driven rails
Replies: 15
Views: 530

Re: is there an electronic handwheel for stepper driven rails

a good idea, but can those devices also trigger the camera for stacking or do they only allow to moove the rail/microscope? Yes, but not without some fiddling. That is why I adapted the motor drive to my Wemacro which handles the photography aspect. If you already have the wemacro/stackshot etc. I ...
by Macro_Cosmos
Tue Apr 02, 2024 6:00 am
Forum: Equipment Discussions
Topic: is there an electronic handwheel for stepper driven rails
Replies: 15
Views: 530

Re: is there an electronic handwheel for stepper driven rails

Expensive, yes. However, they often show up for bargain prices. I use the Prior personally, I adapted it to fit my Wemacro when I need to run focus stacks and I use the original console when I simply need to operate the microscope for routine examination. I got mine for a bargain price. My advice is...
by Macro_Cosmos
Tue Apr 02, 2024 1:17 am
Forum: General Discussion Forum and Community Announcements
Topic: Loss of Robert OToole
Replies: 43
Views: 1795

Re: Loss of Robert OToole

Knowing his health issues, I am still shocked. Our last email exchange was on the 13th of March where he shared some information pertaining to a special order broadband Mitutoyo objective after that fiasco with the 10x HRs. That thread prompted me to write my very own post about shipping issues. I s...
by Macro_Cosmos
Tue Apr 02, 2024 12:41 am
Forum: Equipment Discussions
Topic: Robert O'Toole
Replies: 2
Views: 360

Re: Robert O'Toole

Sadly, it was true.
by Macro_Cosmos
Tue Apr 02, 2024 12:38 am
Forum: Equipment Discussions
Topic: is there an electronic handwheel for stepper driven rails
Replies: 15
Views: 530

Re: is there an electronic handwheel for stepper driven rails

- Prior ES10ZE - Prior optiscan/proscan - Marzhauser Tango series - Objective Imaging Oasis Blue The joysticks have a digipot. They all use two-phase stepper motors, you can easily adapt the motor to and from other systems, as long as you ensure that the current is within an acceptable range. Wemacr...
by Macro_Cosmos
Sun Mar 31, 2024 9:51 pm
Forum: Equipment Discussions
Topic: BX41 focus assembly
Replies: 4
Views: 253

Re: BX41 focus assembly

Rotate the two fine focus dials in opposite directions, it will come off from one side. Pull it all the way out. You can then proceed to slightly lubricate the shaft and the wheels. If you are bothered, you can take the entire thing apart for deep cleaning. I have a PDF of the BX51 / BX52 Frame Repa...
by Macro_Cosmos
Sun Mar 31, 2024 9:49 pm
Forum: Equipment Discussions
Topic: No sharpness when using mitutoyo 10x (also halo, low contrast)
Replies: 16
Views: 635

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

I see no issue. My take is different, did you expect the far more expensive objective to completely blow your mind and impress you? You should expect the opposite, resolution looks about right for a 10x at such high NA and the contrast is lacking but it looks fine. Some quick slider pulling made it ...