Search found 157 matches

by JL
Tue Feb 06, 2024 7:18 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Unsolvable Focal Abnormalities on an OM-D E-M1X & M.Zuiko 90mm f/3.5 Macro IS PRO
Replies: 12
Views: 801

Re: Unsolvable Focal Abnormalities on an OM-D E-M1X & M.Zuiko 90mm f/3.5 Macro IS PRO

I use a Lumix G9 for stacking. This camera has two different sequences for shooting the stack. One of these sequences moves the focus position closer and farther away from the initial position of the stack. The second sequence moves the focus position farther away from the initial position as the st...
by JL
Sun Apr 02, 2023 8:25 am
Forum: Equipment Discussions
Topic: Panasonic G9 (owners)
Replies: 3
Views: 1029

Re: Panasonic G9 (owners)

No, actually I am not using this software. My computer is kind of far from my photo rig, thus I am just relying on the focus bracketing function of the G9 for the photo acquisition.
by JL
Fri Mar 31, 2023 6:04 am
Forum: Equipment Discussions
Topic: Panasonic G9 (owners)
Replies: 3
Views: 1029

Re: Panasonic G9 (ownders)

There is a "Lumix Tether" program that you can use with the G9. It will allow control of the camera and photo acquisition, but it has no processing capabilities at all.

https://av.jpn.support.panasonic.com/su ... ether.html
by JL
Fri Dec 10, 2021 7:55 am
Forum: Equipment Discussions
Topic: AmScope x4 vs Generic X4 review
Replies: 7
Views: 2386

Re: AmScope x4 vs Generic X4 review

Probably we can not trust AmScope for having a consistent network of suppliers.

About 3/4 years ago I bought one of the 4X objectives from its US store. On checking it today, it happens to look like your generic objective.
by JL
Sat Feb 20, 2021 8:00 am
Forum: Photography Through the Microscope
Topic: Chondritic Meteorite section
Replies: 9
Views: 2271

Re: Chondritic Meteorite section

Hi Jose Antonio. I normally prepare photo-mosaics from petrographical thin sections, although not as bigger as you do. In my case, they are usually 54 pictures, taken on my microscope using a Canon 550D. For stitching, I use either Microsoft ICE or Affinity Photo. Microsoft ICE is really fast at com...
by JL
Tue Jan 26, 2021 7:07 am
Forum: Nature Photography -- Macro and Close-up
Topic: Of Armies and Agriculture
Replies: 18
Views: 7018

Re: Of Armies and Agriculture

Excellent!!

Thank you for posting.
by JL
Tue Dec 22, 2020 8:21 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Micro meteorites
Replies: 29
Views: 6793

Re: Micro meteorites

Hi Argu. If I recall correctly, Larsen used a Dino-Lite type of microscope. I guess that he stacked the images, but I do not remember how he proceeded for this. Combing sands with a neodymium magnet will allow you to recover quite an amount of mineral grains. You will have to be very careful to be a...
by JL
Sat May 09, 2020 5:28 am
Forum: Photography Through the Microscope
Topic: Natural diamonds, cross polarized light (black diamond add)
Replies: 21
Views: 7506

Given the color of the background, a 1/4 Lambda plate was used. A Lambda plate would produce a bright magenta background-color.
by JL
Wed Jan 29, 2020 7:15 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: How to create 3D images?
Replies: 15
Views: 6780

Hi.

Just by chance, I came across a program called Meshroom, which is open source and, I believe, free.

I watched a couple of videos on Youtube and this is something I may try in the future. Take a look, it might suit you.

https://www.youtube.com/watch?v=k4NTf0hMjtY
by JL
Mon Dec 09, 2019 11:17 am
Forum: Photography Through the Microscope
Topic: Dirty snow
Replies: 6
Views: 2620

Hi Rik. Interesting sample. As Chris mentioned, some of the grains may correspond to mica minerals, particularly those very thin and having a flake-like shape. There are some greenish grains, which probable are olivine and or pyroxenes. The serrated grains may correspond to "glass shards" derived fr...
by JL
Mon Oct 07, 2019 7:02 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Veszelyite
Replies: 5
Views: 2025

I concur with the previous opinion, very good detail in the crystals clusters.

Cheers.
by JL
Tue Aug 13, 2019 5:48 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Twinned Cerussite
Replies: 8
Views: 2680

Nice crystals!!.

Have you tried UV light on that sample?
by JL
Tue Jul 23, 2019 6:13 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Mixite
Replies: 9
Views: 2997

Nice stereo pair :D
by JL
Wed Jul 03, 2019 6:15 am
Forum: Equipment Discussions
Topic: Panasonic S1R first stack
Replies: 29
Views: 5468

Hi Chris.

Look for the term "Pixel Refresh", this is how it appears in the G9 manual, probably this the Panasonic lingo for pixel mapping.
by JL
Tue Jul 02, 2019 6:06 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Brochantite
Replies: 9
Views: 2874

Beautiful sample and incredibly crisp photo :shock: