Search found 6799 matches

by 75RR
Wed Jan 07, 2015 9:53 pm
Forum: Pictures and Videos
Topic: A protozoan and a filamentous alga
Replies: 5
Views: 1167

Re: A protozoan and a filamentous alga

Very nice. Would also like to add a special thanks for including shutter speed!
by 75RR
Wed Jan 07, 2015 9:48 pm
Forum: Pictures and Videos
Topic: Heamatococcus in my culture bottle
Replies: 16
Views: 2499

Re: Heamatococcus in my culture bottle

Also looking forward to seeing some more. Given the size of the bottle I imagine you will be able to photograph them until the cows come home, if you wish. Great opportunity to perfect your Haematococcus technique. Have you looked in the other bottles yet, or are you waiting for them to thicken a bi...
by 75RR
Wed Jan 07, 2015 12:37 pm
Forum: Pictures and Videos
Topic: Diatomée
Replies: 8
Views: 1609

Re: Diatomée

Very nice and sharp images.
I have a question: how do you mount them in glycerine?
Do you just add a drop of glycerine to the drop of water on the slide?

Have decided to try this technique, just bought a 250ml bottle of glycerine.
by 75RR
Wed Jan 07, 2015 2:37 am
Forum: For forum members who want to buy and sell equipment
Topic: WANTED: nice used scope
Replies: 14
Views: 4031

Re: WANTED: nice used scope

Hi Dale, read this thread. Once the OP's question on darkfield is answered it focuses on Köhler. http://www.microbehunter.com/microscopy-forum/viewtopic.php?f=25&t=185 You basically have two choices: Critical illumination or Köhler illumination. I actually use critical, my microscope lacks a field d...
by 75RR
Wed Jan 07, 2015 1:43 am
Forum: For forum members who want to buy and sell equipment
Topic: WANTED: nice used scope
Replies: 14
Views: 4031

Re: WANTED: nice used scope

I have seen the images with the 60X, but I don't know what ocular was used, knowing that will help a lot. Most people use 10x eyepieces, some use 8x or 12.5x (as I do). Assume 10x and you will not be far wrong. The most I have used is 12.5 X 40= 500. That is for viewing. Do not own a 60x though I w...
by 75RR
Wed Jan 07, 2015 1:11 am
Forum: Pictures and Videos
Topic: Foraminifera (prepared slide of historic material).
Replies: 14
Views: 2473

Re: Foraminifera (prepared slide of historic material).

Thank you, 75RR, for your comments and for the very fascinating link!
Just added another one to my previous post. You have the equivalent of Moon Rocks there!
Thanks for sharing.
by 75RR
Tue Jan 06, 2015 7:52 pm
Forum: Pictures and Videos
Topic: Foraminifera (prepared slide of historic material).
Replies: 14
Views: 2473

Re: Foraminifera (prepared slide of historic material).

Got me looking Foraminifera up on the internet. :) Then I looked up Challenger Station! http://www.foraminifera.eu/challenger338.php http://www.nhm.ac.uk/nature-online/science-of-natural-history/expeditions-collecting/hms-challenger-expedition/ How large would the Foraminifera be? Thanks for a most ...
by 75RR
Tue Jan 06, 2015 2:49 am
Forum: Pictures and Videos
Topic: Onion
Replies: 10
Views: 1923

Re: Onion

Thanks gekko.
Looking forward to Köhler, Phase and getting back my binocular (no more sharing with the camera)!
by 75RR
Mon Jan 05, 2015 11:16 pm
Forum: Pictures and Videos
Topic: Onion
Replies: 10
Views: 1923

Re: Onion

Were these taken with your "new" Zeiss? Do you have a light source for it now? With the Standard Junior. Used my Zeiss F 10x/0,25 Achromat. Paid more attention to the contrast as you suggested. Still waiting for a light source for the Standard RA. Everything slows down during the Xmas holidays here...
by 75RR
Mon Jan 05, 2015 8:36 pm
Forum: Pictures and Videos
Topic: Onion
Replies: 10
Views: 1923

Re: Onion

Many thanks.
by 75RR
Mon Jan 05, 2015 8:34 pm
Forum: Pictures and Videos
Topic: Another Diatoms
Replies: 9
Views: 1797

Re: Another Diatoms

Hi Walter, I have acquire a movie of 600 frames, then with a software called autostakkert2 i have stacking the single frame. Just to make sure I understand. You convert a 600 frame video of the diatom into a 600 image stack to produce one final image. Is that correct? Presumably while filming you st...
by 75RR
Mon Jan 05, 2015 11:45 am
Forum: My microscope
Topic: My microscopes
Replies: 6
Views: 3163

Re: My microscopes

That is very impressive.
Like how you kept your first microscope.
Can you give details on your "good Leitz" objectives?
Thank you for showing us.
by 75RR
Mon Jan 05, 2015 10:35 am
Forum: For forum members who want to buy and sell equipment
Topic: WANTED: nice used scope
Replies: 14
Views: 4031

Re: WANTED: nice used scope

So my wants are: reverse nosepiece, kohler lighting, halogen illumination, oculars of 10X and 20X, the usual objectives but semi or plan. If I might make a couple of observations. 1.) The 20x eyepiece should be optional. One can pick up cheap Chinese ones on ebay if you do decide to try them. 2.) I...
by 75RR
Mon Jan 05, 2015 12:04 am
Forum: Beginner's corner
Topic: First scope revisited
Replies: 19
Views: 4502

Re: First scope revisited

Was looking at the AmScope B530B specs on Amazon, not sure that the objectives are semi-plan. If you go to the bottom of the page to the what's in the box list they say achromat. Remind me why you do not want a trinocular again? It is only 50 dollars more. When you get fed up with sharing your binoc...
by 75RR
Sun Jan 04, 2015 5:27 pm
Forum: Pictures and Videos
Topic: Onion
Replies: 10
Views: 1923

Re: Onion

Thanks gekko. Inspired by your effort!
by 75RR
Sun Jan 04, 2015 2:13 pm
Forum: Pictures and Videos
Topic: Xylème
Replies: 5
Views: 1106

Re: Xylème

Nice. Especially like the first one.
by 75RR
Sun Jan 04, 2015 12:33 pm
Forum: Pictures and Videos
Topic: Onion
Replies: 10
Views: 1923

Onion

10x Achromat Objective, Spiral 40µm width, Darkfield, Oblique(Offset Darkfield Stop), Brightfield, 14,12 and 9 image stacks. After observing everyone's xylems , I thought I would have a go as well. Used surgical blade on a bit of yesterday's onion (rescued from the bin) http://i1368.photobucket.com/...
by 75RR
Sun Jan 04, 2015 10:02 am
Forum: Pictures and Videos
Topic: Onion skin
Replies: 4
Views: 1028

Re: Onion skin

Like number 3. Xylem. Works as a record and as a photograph.
I am tempted to have a go.
No microtome, do have a surgical blade though.
Any tips?

Have jumped the gun. See onion. :)
by 75RR
Sat Jan 03, 2015 9:17 pm
Forum: Pictures and Videos
Topic: Two beautiful rotifers
Replies: 9
Views: 1765

Re: Two beautiful rotifers

... I'm going to college next year where I will (hopefully) have access to nicer equipment ...
That "nicer equipment" might well include a trinocular and camera; I would hold on until you see what is available.
In the mean time a tripod is, in terms of photographic quality, as good as an upgrade.
by 75RR
Sat Jan 03, 2015 8:40 pm
Forum: Pictures and Videos
Topic: Amphipleura pellucida and Frustulia romboides
Replies: 5
Views: 1357

Re: Amphipleura pellucida and Frustulia romboides

Amazing detail. What size are the diatoms?
by 75RR
Sat Jan 03, 2015 8:36 pm
Forum: Pictures and Videos
Topic: Two beautiful rotifers
Replies: 9
Views: 1765

Re: Two beautiful rotifers

I use an Omano OM-118-B4 binocular compound microscope and a Canon powershot A4000 digital camera that i hold up to the eyepiece. I think microscopy is a little like music. No point upgrading the instrument until one feels constrained by its limits. I would however recommend a tripod for the camera.
by 75RR
Sat Jan 03, 2015 4:12 pm
Forum: Introduce yourself
Topic: Walter from Italy
Replies: 8
Views: 2776

Re: Walter from Italy

Hi Waltermicrofossil, welcome.
I have a microscope trinocular muller-optronic with Leitz objective and a stereomicroscope
Hope to see photos of your equipment in the My Microscope section soon!
by 75RR
Sat Jan 03, 2015 4:05 pm
Forum: Miscellaneous
Topic: J'ai un problème
Replies: 2
Views: 1381

Re: J'ai un problème

PM Oliver. Bet he knows!
by 75RR
Sat Jan 03, 2015 11:14 am
Forum: Pictures and Videos
Topic: Two beautiful rotifers
Replies: 9
Views: 1765

Re: Two beautiful rotifers

I see your ID kit is working well!
Am amazed at the length of the Trichotria toes. Looking forward to seeing one myself.

I second JimT's motion. It would be nice if more members started their own thread in the "My microscope" section.
Always nice to see what people are using.
by 75RR
Fri Jan 02, 2015 1:57 am
Forum: Pictures and Videos
Topic: Worm
Replies: 2
Views: 883

Re: Worm

I haven't, but then I don't have a lot of viewing time either.
Worm looks a little flat (pun intended) in the last two images, was the cover slip pressing down a bit more by then?
Was wondering if that could be the cause.
by 75RR
Tue Dec 30, 2014 12:25 am
Forum: Pictures and Videos
Topic: Xylem
Replies: 7
Views: 1636

Re: Xylem

Philoderndron stem (house plant)
Did you pop it in a liquidizer (smoothie style) or just bash it with something?
by 75RR
Mon Dec 29, 2014 7:53 pm
Forum: Pictures and Videos
Topic: alga
Replies: 7
Views: 1323

alga

10x and 16x objectives, 50 and 55µm, Darkfield, Offset Darkfield Stop and Oblique Stop, 4,6,8 and 22 image stacks. May have overcooked the 2nd and 4th one a bit. Think the third photo might include an oogonia. It looks "reproductive". Was taking photos of these algae when I ran across the Limnias me...
by 75RR
Mon Dec 29, 2014 7:36 pm
Forum: Pictures and Videos
Topic: Limnias melicerta (another)
Replies: 4
Views: 1180

Re: Limnias melicerta (another)

Excellent video. Did you follow the offspring and where did it go?
Thanks JimT
It was moving too fast to follow and besides I was more interested in its mother.
I did notice that it hung around, crisscrossing my field of view several times.
by 75RR
Mon Dec 29, 2014 3:50 pm
Forum: Pictures and Videos
Topic: Limnias melicerta (another)
Replies: 4
Views: 1180

Limnias melicerta (another)

10x Objective, Tube (Lorica) 400µm long and 80µm wide, Offset Darkfield Stop. Second Limnias melicerta in 3 days! Previous one was my first so it is metaphorically “pouring” with them. This one is better illuminated and has the additional bonus of having an offspring! Video is 2:45 minutes long. Tho...
by 75RR
Mon Dec 29, 2014 12:55 am
Forum: Collecting microscopes and slides
Topic: Diatom Slide
Replies: 10
Views: 3974

Re: Diatom Slide

Thanks gekko.
Great to see what the "8" look like.
Useful selection. I can see why they were chosen.
No need for more resolution, will be looking at my own soon. :)