Search found 26 matches

by Munich
Sat May 09, 2020 3:52 pm
Forum: General Discussion Forum and Community Announcements
Topic: resolution
Replies: 6
Views: 1791

They claim to have a resolution 10 times that of Hubble. That would coincide with your calculations.

I have tried to read the pertinent chapters in the Handbook of Alma
https://www.iram.fr/IRAMFR/ARC/document ... ndbook.pdf
Unluckily, that is not an easy cuisine.
by Munich
Sat May 09, 2020 10:21 am
Forum: General Discussion Forum and Community Announcements
Topic: resolution
Replies: 6
Views: 1791

This video introduces the instruments and their combined resolution and gives some information about the star: https://www.eso.org/public/germany/videos/eso1436b/ plus some virtual tours https://www.eso.org/public/products/virtualtours/https://www.eso.org/public/products/virtualtours/ Also the corre...
by Munich
Sun May 03, 2020 9:17 am
Forum: General Discussion Forum and Community Announcements
Topic: resolution
Replies: 6
Views: 1791

Hi Rik, that is right. Alma = Atacama Large Millimeter Array
by Munich
Sun May 03, 2020 8:53 am
Forum: General Discussion Forum and Community Announcements
Topic: resolution
Replies: 6
Views: 1791

resolution

https://www.eso.org/public/images/eso1436a/

Not exactly macro, but look at the resolution. It used to be that even the best telescopes could image stars just as single points (pixels). Now we can see a protoplanetary system in surprising detail.
by Munich
Tue Feb 12, 2019 5:20 am
Forum: Equipment Discussions
Topic: shipping equipment
Replies: 13
Views: 3841

Hi houstonx,
I contacted Leschaco. At my location they do only corporate customers. At least, as far as shipping a container is concerned. Whether they might handle my airfreight I will hear tomorrow.
Thank you.
by Munich
Mon Feb 11, 2019 9:14 pm
Forum: Equipment Discussions
Topic: shipping equipment
Replies: 13
Views: 3841

Thanks again, everybody. Enrico, I have friends going to Japan in 2 weeks and will ask them to investigate the germ-killing stuff. Lou, your silica procedure makes a lot of sense. That is the kind of information I was looking for. firesto, I moving household stuff, books and less fragile instruments...
by Munich
Fri Feb 08, 2019 1:22 am
Forum: Equipment Discussions
Topic: shipping equipment
Replies: 13
Views: 3841

Hi Macro,
dessicants are on order. Thank you for your hints.
by Munich
Thu Feb 07, 2019 6:04 am
Forum: Equipment Discussions
Topic: shipping equipment
Replies: 13
Views: 3841

Hello Enrico and Ichty, thank you very much for your valuable insights and links. Much obliged. Ichty, I had several rather sobering experiences with the German customs office in the past myself. Once, I had to go to one of the distant offices you mentioned to pick up a flash light that cost 4 US$ o...
by Munich
Wed Feb 06, 2019 11:56 pm
Forum: Equipment Discussions
Topic: shipping equipment
Replies: 13
Views: 3841

shipping equipment

I am moving house from Asia to Europe in a couple of months and am considering different ways of shipping heaps of cameras, lenses of all sizes, objectives and other optical equipment. Everything going into the shipping container will stay there for at least 2 months and probably get very hot and hu...
by Munich
Mon Jan 21, 2019 7:34 pm
Forum: Equipment Discussions
Topic: Schneider Apo-Xenoplan 1.8/35
Replies: 4
Views: 3461

the magnification is 6x, just about what you would expect from the focal lengths of the lenses. Here a stack of an old ruler, raw, unsharpened, but this time Helicon method C which applies some internal sharpening http://www.photomacrography.net/forum/userpix/4356_measure_overview_1.jpg and a 100% h...
by Munich
Mon Jan 21, 2019 7:35 am
Forum: Equipment Discussions
Topic: Schneider Apo-Xenoplan 1.8/35
Replies: 4
Views: 3461

Schneider Apo-Xenoplan 1.8/35

Apo-Xenoplan 1.8/35 at 1.8 reversed on a Raynox 150. Stack of 50 images, jpg, Olympus OMD5 MkII, 5 micron steps, Helicon Focus, method B. Image overview http://www.photomacrography.net/forum/userpix/4356_xenoplan_raynox_1.jpg Image center 100% http://www.photomacrography.net/forum/userpix/4356_cente...
by Munich
Tue Jan 01, 2019 6:18 am
Forum: Equipment Discussions
Topic: "OEM Nikon 20x 0.75 VC" cover slip thickness
Replies: 45
Views: 10426

Lou Jost wrote:Munich, I recognize those figures from the patent application referenced in our original thread...I imagine the text is just a Japanese translation of the English in that application?

https://patents.google.com/patent/US8143599
you are right. my bad.
by Munich
Tue Jan 01, 2019 1:47 am
Forum: Equipment Discussions
Topic: "OEM Nikon 20x 0.75 VC" cover slip thickness
Replies: 45
Views: 10426

a few illuminating (pun intended) illustrations at
https://twitter.com/KKKKosal/status/983942621448949760
comments in Japanese, translate well via Google
by Munich
Thu Dec 27, 2018 6:51 am
Forum: Equipment Discussions
Topic: Zeiss 135mm f/2.0 APO Sonnar as a tube lens (not)
Replies: 9
Views: 3221

my MF collection is "filled out" now,
There is no such thing. Give up all hope!
by Munich
Fri Dec 14, 2018 12:18 am
Forum: Equipment Discussions
Topic: Lens Tests in Progress Coming Soon 2018
Replies: 25
Views: 5899

Schneider APO-Xenoplan 35mm f1.8

After the lens-greed inducing teaser ("unable to output sharpen") on your homepage:

everything related to the Schneider APO-Xenoplan 35mm f1.8

Many thanks for your efforts!