Search found 2136 matches
- Sat Apr 20, 2024 8:01 am
- Forum: Nature Photography -- Macro and Close-up
- Topic: Crab spider in a dandelion
- Replies: 0
- Views: 2
Crab spider in a dandelion
A couple of handheld focus stacks shot with a Laowa 2x macro (90mm f/2.8 ). Illumination was from 3 Godox MF12s on a ring attached to the front of the lens; all controlled with a Godox XPros radio trigger in the camera hotshoe. This turned out to be a very low contrast scene - everything in the FoV ...
- Sat Apr 20, 2024 4:42 am
- Forum: Equipment Discussions
- Topic: Will we ever have a "perfect" stacking software?
- Replies: 5
- Views: 75
Re: Will we ever have a "perfect" stacking software?
I've often wondered if the deconvolution software used to compute 3d "views" of fluorescence stacks (and other microscopic 3d reconstructions) might hold the answer. The main issue is the OOF regions being visible in each focus slice. The 3d deconvolution software takes that into account and can rem...
- Thu Apr 18, 2024 1:46 pm
- Forum: Nature Photography -- Macro and Close-up
- Topic: Critter Mix 2024
- Replies: 8
- Views: 120
Re: Critter Mix 2024
What an excellent set! Particularly the first and last pics. Great timing and just about perfect placement of the shallow depth of focus! Cheers. Beats.
- Wed Apr 17, 2024 12:32 pm
- Forum: Equipment Discussions
- Topic: who has the new Laowa 90mm/2,8 2:1 Macro?
- Replies: 40
- Views: 11941
Re: who has the new Laowa 90mm/2,8 2:1 Macro?
Probably the latest arrival to the party! I saw the original Laowa 100mm 2x APO several years ago (was that 2019?). A few things put me right off it, namely the DSLR-centric design (long adapter built in for mirrorless), the open front end, reports of focus creep and poor quality control. I subseque...
- Tue Apr 16, 2024 4:31 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: For you micro-mineral photography people, how do you deal with holding minuscule, fragile specimens?
- Replies: 11
- Views: 270
Re: For you micro-mineral photography people, how do you deal with holding minuscule, fragile specimens?
If shooting with a horizontal rail setup (as I do) and if you are able to choose one side of your specimen to photograph (the other side being stuck to a substrate) then mounting on a bit of coverslip works well. I cut coverslips into thin rectangles and mount "things" flat on the glass at one end. ...
- Sat Apr 13, 2024 3:28 pm
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 30
- Views: 907
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
Was it this one Lou?
viewtopic.php?t=41684#p262323
That one, and other diatom shots like it were done with a ,50x Mitty pushed down to 33x on a 135mm tube lens.
Cheers
viewtopic.php?t=41684#p262323
That one, and other diatom shots like it were done with a ,50x Mitty pushed down to 33x on a 135mm tube lens.
Cheers
- Sat Apr 13, 2024 12:59 pm
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 30
- Views: 907
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
I'd like to add that despite their potential fragility, I wouldn't be without my Mitties. I have five now, collected over a few years and all arrived "good" - lucky me! They (nearly) all strike an excellent balance between long working distance and resolution, making it much easier to bring nice lig...
- Fri Apr 12, 2024 12:38 pm
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 30
- Views: 907
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
I can't give any quantitative answer, but the container labelling certainly suggests VERY fragile. The famous "do not fall or drop" label includes a graphic that implies just letting the objective tip over (fall?) could mean "the performace may deteriorate". That also suggests that even a moderate k...
- Wed Apr 10, 2024 11:48 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Lichen (again)
- Replies: 2
- Views: 170
Re: Lichen (again)
Wonderful details on this pretty lichen! Do you mind if I ask what sensor size you are using? I am trying to figure out if the mitty 20x might be a viable option for ~15x on my FF camera. Thanks. I use FF cameras but with Mitties pushed down this hard I use APS-C crop mode (21 mpix on Sony A1, 18 m...
- Wed Apr 10, 2024 9:51 am
- Forum: Nature Photography -- Macro and Close-up
- Topic: Neottia cordata (Heartleaf twayblade orchid)
- Replies: 15
- Views: 271
Re: Neottia cordata (Heartleaf twayblade orchid)
Interesting set. I didn't realise the plant was so small until I saw the finger shot. A fine illustration that there's more to great images than just taking pictures. Knowledge, patience (waiting and travelling in this case) and fieldcraft are key in lifting the result above the ordinary. Great work...
- Wed Apr 10, 2024 1:43 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Lichen (again)
- Replies: 2
- Views: 170
Lichen (again)
I took these a few days ago and forgot about them. Both stacks taken with a 20x mitty running @13.5x on a Raynox DCR250. I did post a couple of lichen shots before, but that was about 5 years ago - so here's some more anyway. lichen-pmn.jpg lichen fruiting-pmn.jpg Larger 4k stereo here: https://live...
- Wed Apr 10, 2024 12:50 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Selected wing scales
- Replies: 2
- Views: 137
Selected wing scales
Well, if you can't find a decent view or much variety of wing scales on your butterfly wing, you can always arrange some yourself :D First baby steps, but it proved "doable". Some scales stuck down on glass using my diatom arranging gear. Shot with a Nikon TU PlanAPO 50/0.8. Two stitched stacks. sel...
- Tue Apr 09, 2024 12:55 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: A flat plane of focus - does it really matter?
- Replies: 5
- Views: 271
Re: A flat plane of focus - does it really matter?
I think you're right in general. But the curvature could be noticeable on flatter subjects in stereo views (e.g. silicon chips, butterfly wings or minerals with planar surfaces).
- Sat Apr 06, 2024 6:32 am
- Forum: Photography Through the Microscope
- Topic: SEM of polymer microspheres deposited on skin
- Replies: 6
- Views: 299
Re: SEM of polymer microspheres deposited on skin
... Absolutely! Let's team up. I bring the mosquitos, the SEM and the knife. You bring the hand. I don't have any anaesthetic, but I am sure you we can do without. Let's hope we don't need 12 quarter sized pieces before we get the killer shot. I promise to be gentle with the knife and not cut too d...
- Sat Apr 06, 2024 6:19 am
- Forum: Equipment Discussions
- Topic: Efficient diffuse macro lighting for SWD objectives
- Replies: 14
- Views: 554
Re: Efficient diffuse macro lighting for SWD objectives
I said "related" because, if I understand it well, the Lieberkühn's is just a reflector surrounding the lens* while yours is a double reflector, playing the conical objective tip an important role for illuminating the white diffusing reflector, am I right? * and would be of little utility with very...