Search found 32 matches

by jfiresto
Fri Feb 19, 2021 3:46 am
Forum: Equipment Discussions
Topic: EOS 90D vs EOS M6 mkII vs others, suggestions please
Replies: 17
Views: 1251

Re: EOS 90D vs EOS M6 mkII vs others, suggestions please

shrek wrote:
Wed Feb 17, 2021 6:19 am
hello,does the Canon M 6 has a wired trigger system,thank
This review suggests it does. Under Connectivity: Remote control: Yes (Wired, wireless, or smartphone). I do not know about the Mark II.
by jfiresto
Tue Sep 22, 2020 3:04 am
Forum: Equipment Discussions
Topic: UV against lens fungus
Replies: 3
Views: 1392

Re: UV against lens fungus

Can UV light stop fungus growth inside objective ? Formaldehyde (gas) is a classic for sterilizing microscopes and, some decades ago, even entire rooms. See for example: Suzuki A and Y. Namba, 1982. Sterilization of operating microscope and flexible fiber-optic illuminator by formaldehyde gas. Nago...
by jfiresto
Tue Sep 22, 2020 12:57 am
Forum: Equipment Discussions
Topic: Sony A7Rii USB Tethering
Replies: 11
Views: 2656

Re: Sony A7Rii USB Tethering

Thanks for the followup. I am happy that the suggestion to switch the USB VBUS connection did the trick. Sometimes the simplest solutions work out the best – and a simple switch, mechanical or electronic, is hard to beat.
by jfiresto
Fri Jul 17, 2020 7:20 am
Forum: Equipment Discussions
Topic: Test wafer distribution: Many features, includes res chart
Replies: 80
Views: 18722

Re: Test wafer distribution: Many features, includes res chart

You may use superglue, or UV glue which is better. Getting the wafer totally in line with the slide might be a bit difficult, so UV glue is better as you have plenty time to position it.... I was going to try some methyl methacrylate (MMA) adhesive that has a 10 minute pot time since it is somewhat...
by jfiresto
Sun Jul 05, 2020 4:18 am
Forum: Equipment Discussions
Topic: Test wafer distribution: Many features, includes res chart
Replies: 80
Views: 18722

Re: Test wafer distribution: Many features, includes res chart

... How about entombing the chips inside a thick, stiff, covered cavity?... That will most likely not work. Auspost will scan these stuff and if it looks like anything other than documents (which it is not), they just return it to the sender.... It was just a thought along with "Photographs – DO NO...
by jfiresto
Sat Jul 04, 2020 12:23 pm
Forum: Equipment Discussions
Topic: Test wafer distribution: Many features, includes res chart
Replies: 80
Views: 18722

Re: Test wafer distribution: Many features, includes res chart

... I honestly feel both annoyed and pissed at myself. I should have just went with my gut instinct and only offered standard post. It's $25, which is a lot more expensive, but there's no rollers to put the chips back onto the beach.... Since you have 20mm thickness to work with and have paid for, ...
by jfiresto
Fri Jun 19, 2020 3:23 am
Forum: Equipment Discussions
Topic: Sony A7Rii USB Tethering
Replies: 11
Views: 2656

You are welcome. Here is an old version of an Olympus remote shutter, tethering box, before I flipped everything upside down and made a peek inside less interesting: http://www.photomacrography.net/forum/userpix/7072_tether_box_rev_c_2.jpg At the far left is a salvaged and potted Olympus 12-pin mult...
by jfiresto
Thu Jun 18, 2020 9:04 am
Forum: Equipment Discussions
Topic: Sony A7Rii USB Tethering
Replies: 11
Views: 2656

Hi Paul, I have zero experience abusing Sony cameras, but from what little I have read, like Olympus, they expect the remote control to ground the FOCUS and SHUTTER inputs to focus the camera and take a picture. You can configure Olympus µ4/3rds cameras so that they power up and pretend to be disk d...
by jfiresto
Wed Jun 17, 2020 10:21 pm
Forum: Equipment Discussions
Topic: Sony A7Rii USB Tethering
Replies: 11
Views: 2656

Re: Sony A7Rii USB Tethering

Is this the connector you are asking about? Are you seeking advice for constructing a combined remote-shutter / USB 2.0 data transfer cable?

I have made such cables for Olympus's similar but somewhat tighter, 12-pin multiconnector.

What do you need to know?
by jfiresto
Tue Mar 17, 2020 9:14 am
Forum: Equipment Discussions
Topic: Cleaning microscope lens surfaces
Replies: 9
Views: 1871

Re: Cleaning microscope lens surfaces

... Also made the discovery that pressurized, canned air is not good for dust removal: several time the can would spit some liquid on the glass. This splash pattern then had to cleaned off.... I am a fan of the Giottos rocket air blower, size large: https://www.guntweaks.com/uploads/1/9/6/5/1965562...
by jfiresto
Sun Feb 23, 2020 3:53 pm
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 139
Views: 22102

... "Warensendung international" is the solution Deutsch Post offers, but then you have to register at Deutsche Post. It is about 6,70.-€ to USA tracked with signature from the buyer when receiving. In case of loosing the shipment you can get back up to 20.-€. So for such small/cheap item even the ...
by jfiresto
Thu Jan 16, 2020 8:26 am
Forum: Equipment Exchange
Topic: Wild Heerbrugg M5a
Replies: 11
Views: 3336

Both are infinite corrected, AFAIK ... I think (?) the [M5/M5A] objectives are compatible with M3 scopes and thus probably do project an infinity-focused image.... Yes times three. The objective of my later production (25mm shaft) Wild M3 has part number 370789. The M5A Wild spare parts catalog (19...
by jfiresto
Mon Jan 13, 2020 3:58 pm
Forum: Equipment Exchange
Topic: Wild Heerbrugg M5a
Replies: 11
Views: 3336

houstontx wrote:another photo tube adapter option I use for my m5a (nikon 2.5x):

https://blog.noq2.net/wild-m8-phototube ... hting.html
Wow. Does a 180570 photo tube fit an M5A? My impression is that the two were incompatibly keyed.
by jfiresto
Tue Dec 03, 2019 9:49 am
Forum: Equipment Discussions
Topic: JANSJÖ no more!!!
Replies: 12
Views: 1516

If I get a chance tomorrow, I will visit our local mini-IKEA and check out the desktop Nävlinge lamps. A few weeks ago, they still had a few, silver Jansjö's. I will compare the two if they still do.
by jfiresto
Tue Oct 01, 2019 3:35 am
Forum: Equipment Discussions
Topic: Circular polarizer instead of a quarter wave plate?
Replies: 10
Views: 911

Perl wrote:Used 66 mm ringlight with pol filter and shott KL 1500

that working perfect
That is encouraging. A fellow has been helping me 3-D print the top half of the objective to pol filter adapter. Our next try should finish that.