Search found 1012 matches
- Thu Aug 18, 2016 7:10 pm
- Forum: Microscopes and optics
- Topic: Cleaning internal lenses and optics
- Replies: 14
- Views: 7289
Cleaning internal lenses and optics
Hi, I read in the Olympus manual and also in the Zeiss cleaning manual that you should *never* clean internal optics yourself, but let an authorized service center do the cleaning. Does any one here have any experience or knowledge from this and what would be the reason? Is it so that the coating is...
- Thu Aug 18, 2016 5:34 pm
- Forum: Beginner's corner
- Topic: Telescope that takes accurate photos?
- Replies: 8
- Views: 4791
Re: Telescope that takes accurate photos?
Do you really mean "telescope" as in looking at things far away or do you mean "microscope" as in looking at tiny things?
- Thu Aug 18, 2016 4:12 pm
- Forum: Pictures and Videos
- Topic: One diatom, five images [137 kBytes]
- Replies: 11
- Views: 5318
Re: One diatom, five images
Very good comparison!
- Thu Aug 18, 2016 4:09 pm
- Forum: Miscellaneous
- Topic: Zeiss lens wipes
- Replies: 4
- Views: 3569
Re: Zeiss lens wipes
I use them as well. I think they are good
- Wed Aug 17, 2016 3:01 pm
- Forum: Pictures and Videos
- Topic: Nematode
- Replies: 7
- Views: 3280
Re: Nematode
They are creepy animals... I read somewhere that 80% of all animals on earth are Nematods. Up to 1 million in a cubic meeter of moist soil...
- Wed Aug 17, 2016 2:59 pm
- Forum: Pictures and Videos
- Topic: Rotifer 'n Company
- Replies: 8
- Views: 3202
Re: Rotifer 'n Company
Nice video! I agree with Gekko. My UplanFl 4x-100x are all Phase Objectives. They produce excellent images in all illumination techniques, BF, DF, DIC, and of course, phase. I have heard that the small translucent phase ring may create a slight blur in some areas, but I have never noticed any such t...
- Tue Aug 16, 2016 6:56 pm
- Forum: Resources (online, books etc.)
- Topic: Another website to ID all those unknown Protists
- Replies: 2
- Views: 2685
Re: Another website to ID all those unknown Protists
Thank you for this link! Very good information!
- Tue Aug 16, 2016 5:43 pm
- Forum: Pictures and Videos
- Topic: Movie - From Cosmos to Microcosmos
- Replies: 8
- Views: 3591
Re: Movie - From Cosmos to Microcosmos
Thanks everyone! Yes, hope they hook, but you never know. I bought a reichert neopan in excellent condition for them to play with. Got a good deal, $30. (!)
- Mon Aug 15, 2016 5:55 pm
- Forum: Pictures and Videos
- Topic: Movie - From Cosmos to Microcosmos
- Replies: 8
- Views: 3591
Re: Movie - From Cosmos to Microcosmos
Thanks! We hade great fun!
- Mon Aug 15, 2016 2:56 pm
- Forum: Pictures and Videos
- Topic: Purple Loosestrife
- Replies: 12
- Views: 3879
Re: Purple Loosestrife
Very nice work! Almost like a 3D effect!
- Sun Aug 14, 2016 11:05 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Re: Diatom test with Swift FM-31 40x objective
I found this article. Talks about the use of the FM-31. I agree with you 75RR. I like the FM-31 more and more. It has potential, even though I have not managed to get all the parts for it yet.
http://www.microscopy-uk.org.uk/mag/ind ... field.html
http://www.microscopy-uk.org.uk/mag/ind ... field.html
- Sun Aug 14, 2016 9:31 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Re: Diatom test with Swift FM-31 40x objective
I also think DIY darkfield stop may work well with the FM-31. LED head lamps like this one: https://www.amazon.com/gp/product/B00SWQXY1G/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 may provide more light than mini mag lite, while weighting less (if you take it apart - I use one for my portable scope...
- Sun Aug 14, 2016 8:15 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Re: Diatom test with Swift FM-31 40x objective
Amazing what a difference an objective makes! What is the power/NA of the fluorite objective? Yes, agree. The 40X fluorite has NA 0.75. Remember thought that it is not only the objective that differs. The light source, condenser is designed for high aperture. Also in that image the camera is mounte...
- Sun Aug 14, 2016 8:06 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Re: Diatom test with Swift FM-31 40x objective
On the other hand, in most cases, a field microscope is used to quickly browse through the samples to see if you have anything of interest. I would say that the ability to achieve contrast would be more important to be able to see transparent objects. That is why I think the Phase-Contrast objective...
- Sun Aug 14, 2016 4:51 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Re: Diatom test with Swift FM-31 40x objective
OK, here we go again. I tried oblique but had a hard time increasing resolution. I used the Klaus Kemp "test plate" and the big diatom with very fine mesh inside did not resolve. I included an image from the BX51 as a comparison which (barely) managed to resolve the criss-cross pattern. I think the ...
- Sun Aug 14, 2016 3:42 pm
- Forum: Identification help
- Topic: Movie inside - Help needed to identify
- Replies: 11
- Views: 5274
- Sun Aug 14, 2016 3:37 pm
- Forum: Pictures and Videos
- Topic: Movie - From Cosmos to Microcosmos
- Replies: 8
- Views: 3591
Movie - From Cosmos to Microcosmos
As a "summer project" from my kids and myself we made a movie of what we found in a drop of water. I want to engage them early in this hobby! I want to thank all forum members who helped out identifying the microbes in the video in an early version of the film. The sample water came from a pond at a...
- Sat Aug 13, 2016 10:27 pm
- Forum: Identification help
- Topic: Movie inside - Help needed to identify
- Replies: 11
- Views: 5274
Re: Movie inside - Help needed to identify
Thank you all for your valuable comments! I am impressed by your skills to identify my finds! I will post a new movie tomorrow with updated description for each clip.
- Sat Aug 13, 2016 9:11 pm
- Forum: Pictures and Videos
- Topic: Testate Amoeba
- Replies: 12
- Views: 5372
Re: Testate Amoeba
Thanks for posting these! Really stunning images and also a good story. Images gets so much better when there is a story behind them! Fascinating with the Amoeba that glues sand to its body!
- Sat Aug 13, 2016 3:53 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Re: Diatom test with Swift FM-31 40x objective
Ok, I'll do it over again. This time with the "test" slide and with delayed triggering. Perhaps that will improve the sharpness a bit. Also, I will try to get better white balance. I will cut a cardboard piece and see if I can get oblique illumination. There are two slots just above the condenser le...
- Sat Aug 13, 2016 12:45 pm
- Forum: Pictures and Videos
- Topic: Diatom test with Swift FM-31 40x objective
- Replies: 18
- Views: 7018
Diatom test with Swift FM-31 40x objective
I was asked to test my Swift FM-31 field microscope with Klaus Kemps diatom slides to show how well the 40x objective performs in terms of resolution. I have two versions of these field microscopes. One equipped with normal (4x, 10x and 40x) objectives where you use regular slides and cover glasses....
- Fri Aug 12, 2016 10:37 pm
- Forum: Identification help
- Topic: Movie inside - Help needed to identify
- Replies: 11
- Views: 5274
Re: Movie inside - Help needed to identify
^ Thank you. I was under the impression that at least some FM-31 clones do not have condenser. It would he highly appreciated, if you can run the FM-31 with some Klaus Kemp test diatoms. Maybe Nitschia or Pleurosigma. I wonder if the 40x objective and condenser combo is really performing at NA 0.65...
- Fri Aug 12, 2016 9:26 pm
- Forum: Pictures and Videos
- Topic: Rotifer Philodina and Friend Video
- Replies: 7
- Views: 3025
Re: Rotifer Philodina and Friend Video
I like how you shifted the focus when the other guy swimmed up to the rotifer
- Fri Aug 12, 2016 9:21 pm
- Forum: Pictures and Videos
- Topic: Paramecia (video)
- Replies: 19
- Views: 5975
Re: Paramecia (video)
Just saw this video. Very fascinating and inspiring! I will try this.
- Fri Aug 12, 2016 8:51 pm
- Forum: Pictures and Videos
- Topic: A large ciliate
- Replies: 17
- Views: 5281
Re: A large ciliate
Very nice images! DIC rocks.
- Fri Aug 12, 2016 8:43 pm
- Forum: Identification help
- Topic: Movie inside - Help needed to identify
- Replies: 11
- Views: 5274
Re: Movie inside - Help needed to identify
The pocket microscope you have is a Swift FM-31, not a Omax clone, correct? Do you know if it has condenser lens under light source - how does its 40x objective perform (with a condenser lens, NA 0.65 cannot be reached)? Yes, it is a Swift FM-31. Works OK. It does have a condenser assembly, but I d...
- Fri Aug 12, 2016 5:48 pm
- Forum: Identification help
- Topic: Movie inside - Help needed to identify
- Replies: 11
- Views: 5274
Re: Movie inside - Help needed to identify
Thank you Kurt, zzffnn and kit1980. I will update the titles accordingly! Yes, I agree with you about the location. It is much more fun if you know where to find what you are looking at. The "pond" shown is very close to our summer house. At Åland, a small island in the middle of the Baltic Sea. I l...
- Fri Aug 12, 2016 1:40 am
- Forum: Identification help
- Topic: Movie inside - Help needed to identify
- Replies: 11
- Views: 5274
Movie inside - Help needed to identify
Hi, I am compiling a movie and would appreciate any help I can get to identify some of the creatures in the movie. I will give credit at the end of the movie for those who successfully identified the right species. (or you can be anonymous of course :)) Unfortunately, my identification skills (among...
- Thu Aug 11, 2016 5:39 pm
- Forum: Pictures and Videos
- Topic: Art for art's sake
- Replies: 9
- Views: 3397
Re: Art for art's sake
Very nice images!
- Thu Aug 11, 2016 7:15 am
- Forum: Pictures and Videos
- Topic: Fly foot
- Replies: 4
- Views: 2098
Re: Fly foot
Thanks for the tip. I also have 5-6 boxes of those smaller slides. I suspect distortion gets worse since you will have double thickness glass?