Search found 109 matches

by santiago
Sat Mar 28, 2020 9:47 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Raynox DCR-150 tube assembly with flocking
Replies: 94
Views: 42280

Great posts on this topic lately, a lot of good info :)
by santiago
Sun Jan 13, 2019 3:28 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Lens correction filter when using microscope objectives
Replies: 5
Views: 3623

you're asking the stacking software to match a straight line against a curved one. It's not going to do that job! But with correction, the curved line near the edge becomes straight also, and then the stacking software can do what it's designed to do Sure, no doubt about that, it should definitely ...
by santiago
Sat Jan 12, 2019 3:21 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Lens correction filter when using microscope objectives
Replies: 5
Views: 3623

Ok, thanks for the information. I would have thought that in theory it would be better to correct after stacking. Since applying correction prior to stacking will not improve the alignment of the frames nor make the stack any "better", and the images still need to get stacked, resulting in some more...
by santiago
Fri Jan 11, 2019 12:28 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Lens correction filter when using microscope objectives
Replies: 5
Views: 3623

I can also shoot a grid and then tweak the distiortion manually...
by santiago
Fri Jan 11, 2019 3:57 am
Forum: Photography Through the Microscope
Topic: Various
Replies: 22
Views: 5846

Fascinating images, thanks for the information.
by santiago
Thu Jan 10, 2019 5:22 am
Forum: Photography Through the Microscope
Topic: Various
Replies: 22
Views: 5846

Amazing images!
by santiago
Tue Jan 08, 2019 12:49 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Peruvian Amazon: Tangled Webs Part VI
Replies: 17
Views: 6482

Amazing, thanks for the photos!
Lou Jost wrote:The third one has a brilliant strategy!
Indeed :lol:
by santiago
Tue Jan 08, 2019 12:13 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Peruvian Amazon: Tangled Webs Part VI
Replies: 17
Views: 6482

My favorite Tambopata spider is the little one that makes a model, in the middle of its web, of a big nasty spider, constructed from bits of debris. The little spider sits in the center of the big fake spider. That sounded too interesting to ignore, I had to look that up :o Indeed I found that this...
by santiago
Tue Jan 08, 2019 10:45 am
Forum: Nature Photography -- Macro and Close-up
Topic: Peruvian Amazon: Tangled Webs Part VI
Replies: 17
Views: 6482

Beatsy wrote:Ref: web building rules. While this isn't the paper I was originally talking about, it does contain some interesting info relevant to the topic.

http://www.cs.bham.ac.uk/~jer/spider.pdf
Nice paper, thanks for sharing :)
by santiago
Tue Jan 08, 2019 10:43 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Lens correction filter when using microscope objectives
Replies: 5
Views: 3623

Lens correction filter when using microscope objectives

How to correctly apply lens correction to an image that was produced with a microscope objective? For example, Photoshop features a "Lens correction" filter that allows you to choose from several predefined lens profiles, camera make, model, etc. As expected, there are no profiles for my two microsc...
by santiago
Tue Jan 08, 2019 8:11 am
Forum: Photography Through the Microscope
Topic: Amoeba Proteus and Polypodium vulgare
Replies: 9
Views: 2534

Beautiful images!
by santiago
Tue Jan 08, 2019 8:09 am
Forum: Photography Through the Microscope
Topic: Polypodium interjectum
Replies: 7
Views: 2097

Great image and subject.
by santiago
Tue Jan 08, 2019 8:07 am
Forum: Photography Through the Microscope
Topic: Diatoms and Radiolarians
Replies: 14
Views: 2978

Great images.
by santiago
Tue Jan 08, 2019 8:03 am
Forum: Photography Through the Microscope
Topic: Diatoms from Barbados
Replies: 13
Views: 2583

Beautiful images, very nicely captured.
by santiago
Tue Jan 08, 2019 7:55 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Morpho Achilles Lima -- Two Stacks
Replies: 5
Views: 2797

Very nice, the second one is my favourite.