Search found 1492 matches

by enricosavazzi
Sun May 14, 2023 10:04 am
Forum: Equipment Discussions
Topic: New olympus 90mm 2x macro
Replies: 116
Views: 90469

Re: New olympus 90mm 2x macro

A small comparison with 60 mm macro Olympus would be very clarifying. Thanks Carlos Yes...the 60 is quite good at f/3.5 so it might have a resolution advantage. It took some time, but I got around to it: https://savazzi.net/photography/olympus-macro-lenses.html I included the Olympus 30 mm macro as...
by enricosavazzi
Tue May 09, 2023 1:13 pm
Forum: Equipment Discussions
Topic: Stackshot Vs. WeMacro Vs. QOOL
Replies: 5
Views: 1529

Re: Stackshot Vs. WeMacro Vs. QOOL

My current approach is somewhat different. I initially started with the MJKZZ system because their refurbished THK KR-20 rails (augmented with proprietary hardware to make them immediately usable "out of the box") seem more "serious" and reliable than the rails that come with WeMacro and Stackshot s...
by enricosavazzi
Sun May 07, 2023 12:29 pm
Forum: Equipment Discussions
Topic: Blackening edge lens elements and extension tubes
Replies: 31
Views: 2329

Re: Blackening edge lens elements

It depends on how black you want the girdle of optical elements to be, but a potential problem with paint is that the thickness of the dried paint can make it impossible to put the optical element back into a tight-fitting mount (and if you force the lens back into its mount, off comes the paint). A...
by enricosavazzi
Sat May 06, 2023 9:30 am
Forum: Equipment Exchange
Topic: fs:various microscope parts
Replies: 4
Views: 2096

Re: fs:various microscope parts

Macro_Cosmos wrote:
Tue May 02, 2023 7:51 pm
The tilt stage is nice! I have seen them on stereomicroscopes, which allows for some interesting perspectives.

I would like to purchase the binoculars for AX, however, it is out of my price range and shipping would be very expensive.
PM sent.
by enricosavazzi
Fri May 05, 2023 2:31 am
Forum: Equipment Exchange
Topic: fs:various microscope parts
Replies: 4
Views: 2096

Re: fs:various microscope parts

Drpaul69 wrote:
Mon May 01, 2023 8:50 am
Is your Zeiss phototube (for Universal) still available? I'm building up a metallurgical Universal, and have been trying to find one of these!

drpauul69
PM sent.
by enricosavazzi
Sun Apr 23, 2023 8:21 am
Forum: Equipment Discussions
Topic: Goniometer Recommendation
Replies: 6
Views: 1470

Re: Goniometer Recommendation

The question in this thread is about a two-axis goniometer. Alan, the item you referenced doesn't appear to include any goniometer at all. I don't think it is on topic for this thread. --Chris S. That is my impression too, the link seems to show an XY shift stage (a.k.a. translation stage, plus a r...
by enricosavazzi
Sat Apr 22, 2023 1:15 pm
Forum: Equipment Discussions
Topic: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?
Replies: 25
Views: 3937

Re: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?

In the interesting discussion that's been going on, I'm wondering how to fit a 1.4x doubler on the Olympus 60mm macro because the M4/3 teleconverters have the rear lens housed in a long tube that prevents these teleconverters from being placed on lenses that aren't They are specifically made for th...
by enricosavazzi
Sat Apr 22, 2023 1:04 pm
Forum: Equipment Discussions
Topic: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?
Replies: 25
Views: 3937

Re: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?

[...] Which brings me to the next question - does the AF in-camera-stacking on micro 4/3 cameras only work with Olympus and Panasonic lenses or is it possible with older adapted lenses like the Sigma 150mm in EF or 4/3 mount? That would be an interesting way to get more working distance than any 60...
by enricosavazzi
Fri Apr 14, 2023 9:41 pm
Forum: General Discussion Forum and Community Announcements
Topic: Cow Patty Critters
Replies: 1
Views: 3535

Re: Cow Patty Critters

Hi, all. An entomologist I know released a book "Cow Patty Critters - An introduction to the ecology, biology and identification of insects in cattle dung on Canadian pastures" this morning. Whew, that was a mouthful. I only perused it lightly and it looks very informative. I suspect it also applie...
by enricosavazzi
Fri Apr 14, 2023 3:25 am
Forum: Equipment Discussions
Topic: Lisprice of Nikon Eclipse E400 Pol /Value of used instrument
Replies: 7
Views: 2410

Re: Lisprice of Nikon Eclipse E400 Pol /Value of used instrument

The link takes me to an online shop, not to a PDF.

PS - never mind for me, it was easy to find another copy on the web.
by enricosavazzi
Sun Apr 09, 2023 2:47 am
Forum: Equipment Exchange
Topic: fs: Zeiss Tessovar photomacroscope
Replies: 0
Views: 1839

fs: Zeiss Tessovar photomacroscope

There are at least two different things known as Zeiss Tessovar. One is a system for photomacrography. This is what I am offering. The other Tessovar is an adapter for photomicrography equipped with an eyepiece port for focusing. There might be also other things that Zeiss called Tessovar. P4093803s...
by enricosavazzi
Fri Apr 07, 2023 1:04 pm
Forum: Equipment Discussions
Topic: 1mm WD
Replies: 17
Views: 4156

Re: 1mm WD

Has anyone actually tried to use the Olympus LMPlanFL 50x BD 0.50 or UMPlanFL 50x BD 0.80 on an Olympus BD illuminator? Or any other Olympus objectives of the same two series on an Olympus BD illuminator? How did it work on a three-dimensional subject? I have the LMPlanFL 50x BD 0.50 (the one with 1...
by enricosavazzi
Thu Apr 06, 2023 3:28 pm
Forum: Equipment Discussions
Topic: 2x Mitutoyo objective. Any good?
Replies: 25
Views: 3409

Re: 2x Mitutoyo objective. Any good?

[...]While I've not had one in hand, the Laowa 25mm f/2.8 2.5-5X Ultra Macro is said to be very good in the 2.5x-3.5x range. (This is not a bellows-mounted lens, but goes directly on the camera.)[...] I have a couple of tests of the Laowa 25 mm available at https://savazzi.net/photography/laowa-25-...
by enricosavazzi
Tue Apr 04, 2023 10:39 am
Forum: Equipment Exchange
Topic: fs:various microscope parts
Replies: 4
Views: 2096

fs:various microscope parts

P4043754s.JPG Binocular for Mitutoyo FS-60 trinocular head. Perhaps fits also FS-70 Mitutoyo microscopes but I am not certain. The complete head mounted on the microscope looks like figure 2 at https://savazzi.net/photography/mitutoyo-fs-60.htm . 80€ for the binocular part only, as shown in the abo...
by enricosavazzi
Tue Apr 04, 2023 7:28 am
Forum: Equipment Exchange
Topic: ** discounted ** fs: various finite microscope objectives
Replies: 2
Views: 2132

** discounted ** fs: various finite microscope objectives

A small batch of finite objectives. P4043751s.JPG Lomo Apo water immersion 70x 1,23 with correction collar for cover thickness 10-20 (0.10-0.20 mm I guess). The collar turns and stops at either end of the range, but there is some dead play when you reverse the direction of rotation between the two e...