Search found 96 matches

by MacroLab3D
Sat Mar 21, 2020 7:17 am
Forum: Equipment Discussions
Topic: Comparing macro lenses using MTF - invitation, take 3
Replies: 27
Views: 5166

Lou Jost wrote: 70-200 zoom is actually better than this prime.
This probably because i am on Crop and according to this test - the center is excellent. This is why i am preferring crop. It is always better in overall.
by MacroLab3D
Sat Mar 21, 2020 6:26 am
Forum: Equipment Discussions
Topic: Comparing macro lenses using MTF - invitation, take 3
Replies: 27
Views: 5166

Lou Jost wrote:MacroLab3D, that's an important observation that your 200mm Canon L did better than the Raynox. Which version is yours? I see there are at least three.
Mine is Mark II.
by MacroLab3D
Fri Mar 20, 2020 9:27 am
Forum: Equipment Discussions
Topic: Comparing macro lenses using MTF - invitation, take 3
Replies: 27
Views: 5166

I want to thank you Miljenko for the tests. It was a nice read and information. Based on that i bought Kenko No5 and Raynox 150 and compared them both with my Canon 200mm 2.8L II. Raynox 150 reversed looks almost as good as Canon 200mm 2.8L II and i am very happy to have custom alternative to the Ca...
by MacroLab3D
Mon Jan 27, 2020 8:26 am
Forum: Equipment Discussions
Topic: dead pixels?
Replies: 14
Views: 1788

I bought 90D recently. It has the best Canons sensor ever. I have also Canon 5D II and Canon M3 and ALL of them have that problem you just described.

Solution - never shoot with ISOs higher than 100 and longer than 1s.
by MacroLab3D
Fri Jan 17, 2020 4:00 am
Forum: Equipment Discussions
Topic: My experience buying used Mitutoyo 100X 0.70:
Replies: 50
Views: 6402

“Mitutoyo light angle per objective” is striking. Thank you, Chris . I used 3D models from Edmund Optics for new generation "3" and modified them using Mitutoyo catalog to match older generation "2". Browsing through ebay listings i see why they trying to hide their lenses behind the barrel in newe...
by MacroLab3D
Thu Jan 16, 2020 5:54 pm
Forum: Equipment Discussions
Topic: My experience buying used Mitutoyo 100X 0.70:
Replies: 50
Views: 6402

This is just too exciting information, Rik . Thank you so much for helping me with links and formulas. mawyatt , Piezo stages sounds incredible. Now i am wondering if there are commercially available solutions, with a motion/camera controller. A lot of information to research, guys. I am going to di...
by MacroLab3D
Thu Jan 16, 2020 4:07 pm
Forum: Equipment Discussions
Topic: My experience buying used Mitutoyo 100X 0.70:
Replies: 50
Views: 6402

no, that's not precise enough to work at sub-micron step sizes. Rik, you opened my eyes... once again :)) Well... i thought i have only one problem - absence of 100X 0.7 but there are too much more of them hahah. Thank you so much. Now i need to think even moooore. I thought that expensive rail mus...
by MacroLab3D
Thu Jan 16, 2020 12:21 pm
Forum: Equipment Discussions
Topic: My experience buying used Mitutoyo 100X 0.70:
Replies: 50
Views: 6402

Adalbert, i still want to check it by myself if i can find anything interesting. Macro Cosmos, Thank you for the info. I have StackShot 3X so step size is not a problem i guess? Look, someone already disassembled his 100X 0.70 378-806-2 and decided to sell it after all. Strange isn't it? He not jus...
by MacroLab3D
Thu Jan 16, 2020 3:21 am
Forum: Equipment Discussions
Topic: My experience buying used Mitutoyo 100X 0.70:
Replies: 50
Views: 6402

Scarodactyl, i tried Taobao too, just forgot to mention that in the post but situation there even worther then on ebay. Alot of $1 listings this is ridiculous. Macro_Cosmos, thank you for your offer but i decided to not to buy used 100X. It is too risky and i am too poor for that. Yet i am wondering...
by MacroLab3D
Wed Jan 15, 2020 5:11 pm
Forum: Equipment Discussions
Topic: My experience buying used Mitutoyo 100X 0.70:
Replies: 50
Views: 6402

My experience buying used Mitutoyo 100X 0.70:

Hello, dear scientists. First of all let me thank you for creating this invaluable source of information: THANK YOU. Today i will share my experience of buying used Mitutoyo 100X / 0.70. Short story: Impossible to buy used 100X. Long story began from my attempt to buy 50X. Thanks to your suggestion ...
by MacroLab3D
Tue Jan 07, 2020 12:09 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: First stack - butterfly closeup
Replies: 4
Views: 1475

Congrats! Looking good.
Everything i know i learned form this treasure place. It should be illegal.
by MacroLab3D
Mon Jan 06, 2020 3:09 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: another look at BMSB highly sculptured cuticle
Replies: 18
Views: 4158

Just wanted to let you know that your 3D shots all work for me no problems and it is my favorite format when i can just cross my eyes and see immediate result. Especially impressive high magnification ones.
by MacroLab3D
Mon Jan 06, 2020 2:55 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Balloons in pits on a live and active BMSB
Replies: 6
Views: 2083

Rik, i just wanted to say that your posts always blow my bind. This thread is fascinating, amazing and other such wording. First time i see someone shot 50X on live specimen. Thank you.
by MacroLab3D
Sat Jan 04, 2020 4:49 am
Forum: Equipment Discussions
Topic: CANON EOS M6 Mark II
Replies: 109
Views: 13746

Chris, thank you for your reply. I am relieved to know that i am right and that my feels on that goes on par with you, about splitting beamer. I thought about that solution and DSLR system is still the best. You (i mean i am :)) simply can`t make it more convenient than it is already made in camera....