Search found 1486 matches

by enricosavazzi
Sun Mar 17, 2024 4:52 am
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 16
Views: 311

Re: Lens recomendation for film reproduction

... - For light i use Kaiser Plano light. It looks like the light from it is very even and has the right color. ... I never used a Kaiser Plano, but it seems to be a kind of light box, and it comes in different sizes. Just to make sure, I am going ahead and ask the obvious: are you masking off the ...
by enricosavazzi
Sat Mar 16, 2024 7:58 am
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 16
Views: 311

Re: Lens recomendation for film reproduction

Actually it's the exact opposite: You want a lens to have a good contrast. It's when the lens has low contrast that you start to lose definition and tonal distinction - and when you compensate for that by raising the contrast you may lose details. Roberts images are great to determine the resolutio...
by enricosavazzi
Mon Feb 12, 2024 9:10 am
Forum: Equipment Discussions
Topic: Olympus U-UCD (and BH2-UCD) information
Replies: 3
Views: 2317

Re: Olympus U-UCD (and BH2-UCD) information

It seems that over the years it has become more and more difficult to find Olympus BH and BX literature on the web, except for two or three well-known archives (one of which seems not to carry BX material, but quite a fewof the BH items can be used on BX scopes). When I got and souped up my BX 50, I...
by enricosavazzi
Fri Feb 09, 2024 7:12 pm
Forum: Equipment Exchange
Topic: ** discounted ** fs: various finite microscope objectives
Replies: 2
Views: 1783

Re: ** discounted ** fs: various finite microscope objectives

Miche wrote:
Tue Feb 06, 2024 8:55 pm
Hello -- are any of these objectives still available? if so, I'm interested mainly in the Lomo and Nikon 2x. Best -- Michael
Hi, I still have the Nikon 2x (and the other objectives), but not the Lomo 70x.
by enricosavazzi
Tue Jan 23, 2024 11:46 am
Forum: Equipment Discussions
Topic: Help! Macro rail minimum 1µm step size is too big.
Replies: 34
Views: 3819

Re: Help! Macro rail minimum 1µm step size is too big.

[...]no flash because the flash would take too long to recharge.[...] I beg to disagree. I just reviewed a 600 Ws studio strobe that recycles in 0.9 s after flashing at full power. The amount of flash light needed for photomicrography is perhaps 1/10 to 1/100 of that, which means recycle lasts only...
by enricosavazzi
Tue Jan 23, 2024 6:54 am
Forum: Equipment Discussions
Topic: Godox AD600 Pro studio strobe
Replies: 0
Views: 525

Godox AD600 Pro studio strobe

I think Godox strobes and speedlights have been occasionally discussed on PM.net in the past. I just wrote a review of the AD600 Pro, not specifically centering on its use in close-up and macro (but this is how I use it most of the time). Some potentially interesting features are: it is a battery po...
by enricosavazzi
Sat Jan 20, 2024 2:24 am
Forum: Equipment Discussions
Topic: Help! Macro rail minimum 1µm step size is too big.
Replies: 34
Views: 3819

Re: Help! Macro rail minimum 1µm step size is too big.

[...] Any recommendations how to overcome or improve the stepping size welcome. :) You already received good advice in the preceding posts, so I will not repeat it here. I only confirm that with 400 steps/turn motors, I have no trouble stacking up to 40x with Zerene Stacker controlling a Stackshot ...
by enricosavazzi
Mon Dec 25, 2023 12:04 pm
Forum: Equipment Discussions
Topic: Help! Macro rail minimum 1µm step size is too big.
Replies: 34
Views: 3819

Re: Help! Macro rail minimum 1µm step size is too big.

I already have a Micromate attached to my Olympus BX61. I don't want to have to remove it every time I want to do macro, so I'd have to buy another - and it takes up soooo muuuuch space! I agree that the Micromate is both large and unnecessarily expensive. However, with a minimum DIY one can build ...
by enricosavazzi
Tue Dec 19, 2023 7:07 am
Forum: Equipment Exchange
Topic: Nikon E400 - Phase contrast microscope [Now with pictures!]]
Replies: 3
Views: 3157

Re: Nikon E400 - Phase contrast microscope

toomuchoptics wrote:
Mon Dec 18, 2023 3:21 pm
[...]
PS. If anyone has any ideas on somewhere else to try and sell this. I checked and registered at mikroskopieforum.de, but I'm not sure they have a selling section (I don't have Facebook).
[...]
microbehunter.com does have a buy/sell forum.
PS - looks like you already advertised the E400 there.
by enricosavazzi
Sat Dec 16, 2023 1:02 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Protist aquarium- how long should I run air pump
Replies: 2
Views: 2371

Re: Protist aquarium- how long should I run air pump

So I started a 3.5 gallon protist aquarium today, with aquarium heater, air pump (bubbler), LED light and pond water sample and some aquatic plants / pond soil. For those of you who have set up protist aquarium and determined the best condition for protists diversity, what settings do you use? Spec...
by enricosavazzi
Sat Dec 02, 2023 1:36 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: water soluble fluorescent dye
Replies: 6
Views: 3140

Re: water soluble fluorescent dye

I want the colour absorbed by the plants not painted "on" the plans. First tests showed that with pigments (particles) do not work. Pigments give a cloudy solution in water where dyes give a clear solution. Water-soluble phosphorescent dyes are hard to find, although not impossible in theory. There...
by enricosavazzi
Mon Nov 27, 2023 6:43 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: water soluble fluorescent dye
Replies: 6
Views: 3140

Re: water soluble fluorescent dye

If you are after light-emitting dyes for artistic purposes, CultureHustle sells phosphorescent powders that can be mixed together and/or with a transparent base to make a brush-on paint. This is not UV-stimulated fluorescence, which is practically simultaneous to irradiation. This is phosphorescence...
by enricosavazzi
Sun Nov 05, 2023 7:22 am
Forum: Equipment Discussions
Topic: 2x handheld macro upgrades for Pentax body
Replies: 10
Views: 3510

Re: 2x handheld macro upgrades for Pentax body

The old Laowa 60 mm f/2.8 was one of the first 2x macro lenses (I am talking about the lens shown at https://savazzi.net/photography/60mm-2x-lenses.html ). It is good for most natural subjects, but if you need to image flat artificial subjects with orthogonal lines (e.g. semiconductor wafers, postag...
by enricosavazzi
Tue Oct 31, 2023 4:30 am
Forum: Equipment Discussions
Topic: wide angle macro: a new 3-D printed adapter for lens combo
Replies: 23
Views: 5081

Re: wide angle macro: a new 3-D printed adapter for lens combo

By the way, the Samyang 7.5 mm f/3.5 for Micro 4/3 focuses down to 8 cm from the sensor plane, which strictly speaking is not macro but a good close-up range, and avoids the problem of inverted image in the viewfinder etc. I have a couple of examples at https://savazzi.net/photography/samyang75.html...
by enricosavazzi
Fri Oct 20, 2023 12:26 pm
Forum: Equipment Discussions
Topic: CultureHustle Black 4.0
Replies: 2
Views: 2331

CultureHustle Black 4.0

Stuart Semple has announced Black 4.0. It's not so cheap, but perhaps has advantages over earlier versions when used as a flocking paint.

https://culturehustle.com/products/blac ... 4e2827dc6f