Search found 1834 matches

by zzffnn
Mon Apr 13, 2020 8:10 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Optimized Condenser-less dark field LED lighting
Replies: 13
Views: 2554

Those look great there, Linden! Congratulations! You have some big Amphipleura species on your strew slide and a NA 0.95 Apo. Why not give it a try by zooming in onto pixel level (to see how far your LED rig can go)? Frustulia rhomboides would serve as better resolution target there (being raised an...
by zzffnn
Sun Apr 12, 2020 11:27 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Optimized Condenser-less dark field LED lighting
Replies: 13
Views: 2554

Great job, Linden! How is your DF rig's diatom dotting ability at NA 0.85 40x? If you can post a 100% crop on Pleurosigma angulatum, I can tell you how it compares with regular DF condener's dotting ability. NA 0.85 is about as high as it gets for most oil DF condensers. At NA 0.85 DF, with a regula...
by zzffnn
Sun Apr 12, 2020 11:02 pm
Forum: Equipment Discussions
Topic: What are Zeiss Jena HI finite objectives?
Replies: 3
Views: 1727

That particular oil immersion objective is mainly designed for darkfield microscopy (where its adjustable NA / back focal plane iris is useful). It is not plan, but otherwise a pretty good apo lens.
by zzffnn
Fri Feb 07, 2020 1:27 pm
Forum: Equipment Discussions
Topic: Laowa 2.5-5x vs Raynox MSN 202 +telephoto vs LOM 3.7 on m43
Replies: 9
Views: 1185

Thank you very much, Nick. Your detailed comment is very helpful to me. I am leaning very heavily on the MSN-202 solution now. Do you remember the working distance of Raynox 250 stacked with Raynox 150 (over your 45-175)? I lost my Raynox 150. I had it stacked onto Raynox 250 when I had it, but cann...
by zzffnn
Sat Feb 01, 2020 11:36 am
Forum: Equipment Discussions
Topic: Laowa 2.5-5x vs Raynox MSN 202 +telephoto vs LOM 3.7 on m43
Replies: 9
Views: 1185

Thank you very much, Rik. Can you see obvious diffraction blur in my snowflake images above? I was (mistakenly) using f/22 for those 3mm snowflakes. My speedlites provided more than enough light, but I think I might have done better by using f/11. I could not get those snowflakes to lay flat, which ...
by zzffnn
Sat Feb 01, 2020 8:53 am
Forum: Equipment Discussions
Topic: Laowa 2.5-5x vs Raynox MSN 202 +telephoto vs LOM 3.7 on m43
Replies: 9
Views: 1185

Any educated guess would be better than no response. Thank you very much!
by zzffnn
Fri Jan 31, 2020 8:28 pm
Forum: Equipment Discussions
Topic: Laowa 2.5-5x vs Raynox MSN 202 +telephoto vs LOM 3.7 on m43
Replies: 9
Views: 1185

Laowa 2.5-5x vs Raynox MSN 202 +telephoto vs LOM 3.7 on m43

Dear all, I am using a micro four thirds camera Olympus E-M1 mk1 for handheld macro in the field. Looking to get better single frame photos between 2x-5x on m4/3 sensor, which is about 17mm wide. No stacking (yet) for me. Just hand-held single frame macro in the field. Some 2-3x use for insects, and...
by zzffnn
Sun Oct 27, 2019 9:19 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Malaysian Jumping Spider
Replies: 4
Views: 1107

Beautifully done! What camera (Panasonic G9?), Lens and what camera setting (iso, aperture, shutter speed, approximate number of frames, subject size and done in approximately how many seconds)?

Your previous spider handheld stack is impossibly amazing as well.
by zzffnn
Sun Oct 06, 2019 9:09 pm
Forum: General Discussion Forum and Community Announcements
Topic: Copper Nickel Gold balls
Replies: 6
Views: 1977

Ray, how did you manage to find all those cool stuffs? I go to local estate sales and swaps sometimes too, but rarely find things like those (for example, I rarely find good prime lens locally, other than the boring 50mm f/1.8 varieties). Methylene blue is used medically too, sometimes as antidote f...
by zzffnn
Fri Aug 30, 2019 7:04 am
Forum: Nature Photography -- Macro and Close-up
Topic: Quenching the macro thirst
Replies: 11
Views: 1960

All very nice photos. Thank you for sharing! I especially like the grasshopper composition and colors! Where were the photos taken in India?
by zzffnn
Mon Aug 26, 2019 5:47 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Macro variety - III
Replies: 7
Views: 2138

Beautiful composition @Hayath!

I have admired your wonderful work at mu-43.com as well.

Were beetle and mantis photos shot are 1:1 magnification on m4/3 sensor? Have you tried higher magnification using the same lighting rig (that you posted previously)?

Thank you for sharing!
by zzffnn
Fri Aug 16, 2019 8:48 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Soap film interference abstracts
Replies: 10
Views: 2239

Thank you, Roundel. Your interference patterns are fascinating. They appear to form naturally. Did you blow air on them or disturb the soap film in any way? I don't remember I achieved your patterns before. Maybe our soap film holders are very different? Mine was nearly circular with cloth wrapped a...
by zzffnn
Thu Aug 15, 2019 4:29 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Rainforest Mix III
Replies: 8
Views: 2263

Amazing and inspirational shots! Thank you for sharing!
by zzffnn
Mon Aug 12, 2019 11:47 am
Forum: General Discussion Forum and Community Announcements
Topic: Earning a living from microscopy
Replies: 4
Views: 1591

Maybe also take a look at the broader and more popular direction: nature photography. See how people are making a living out of that.

I would highly appreciate it, if you can report back your findings. I believe some forum members have considered this option, but have never really started it.
by zzffnn
Mon Aug 12, 2019 11:04 am
Forum: General Discussion Forum and Community Announcements
Topic: Earning a living from microscopy
Replies: 4
Views: 1591

Paul, It may be difficult to earn living from microscopy alone, though you may combine it with nature photography, scientific photography, mineralogy, petrographic microscopy, or even boy scouts kind of activities / scientific after-school program? At least two other forum members earns part of thei...