Search found 1451 matches

by charlie g
Wed May 15, 2019 2:06 pm
Forum: My microscope
Topic: Nikon S microscope
Replies: 3
Views: 3954

Re: Nikon S microscope

Beatiful black enamel stand, David...congrats, Charlie guevara
by charlie g
Wed May 15, 2019 1:56 pm
Forum: Microscopes and optics
Topic: Nikon S Microscope objectives
Replies: 15
Views: 3473

Re: Nikon S Microscope objectives

David, you have a beautiful, and to me as a baby-boomer...you have an elegant black enamel instrument in your home, thanks for sharing! It is now a question for you if you wish to further this stand from achro to plan achro, or fluor or apo Nikon objectives. I think you have already 'broken pedigree...
by charlie g
Sat May 11, 2019 8:10 pm
Forum: Microscopes and optics
Topic: Nikon S Microscope objectives
Replies: 15
Views: 3473

Re: Nikon S Microscope objectives

Hello...I'll coble some images together in this thread...offline (pm) I can suggest prices for objectives...all low cost. Too many hobbies...sigh..for me it's: 'too little time' for all that needs be done. Charlie Guevara, finger lakes/NY
by charlie g
Thu May 09, 2019 4:04 pm
Forum: Pictures and Videos
Topic: Paramecium Division
Replies: 1
Views: 1073

Re: Paramecium Division

Thanks Radaz, to me it is notable how often that larger Paramecium nudges and contacts both of dividing pair. A contrast with how that separated 'sibling pair' do not contact or nudge either of the ciliates near itself. Post partum Paramecium depression?!! Jokes aside..behaviors of the splitting pai...
by charlie g
Thu May 09, 2019 3:47 pm
Forum: Beginner's corner
Topic: Inverted vs. Upright Microscopes
Replies: 26
Views: 5474

Re: Inverted vs. Upright Microscopes

Hi again, Pat...consider a quick and dirty use of thin plastic ruler..thickness equal to standard microscope glass slides are available...bore a hole then cement a rectangular cover slip over the hole. Sheet metal also easy to work with to fabricate a few DIY cover glass bottom slides. just a though...
by charlie g
Thu May 09, 2019 3:34 pm
Forum: Microscopes and optics
Topic: Nikon S Microscope objectives
Replies: 15
Views: 3473

Re: Nikon S Microscope objectives

Hi David, I too have a Nikon S trinoc stand..I 'tricked it out' with circa 1990 Nikon CF objectives..it performs excellently for protozoa observation, diatom observations, pond life enjoyment right up to oil-objective. I even plopped a Zeis Plan apo 25X objective on it...wonderful crisp views of the...
by charlie g
Wed May 08, 2019 5:26 pm
Forum: Beginner's corner
Topic: Inverted vs. Upright Microscopes
Replies: 26
Views: 5474

Re: Inverted vs. Upright Microscopes

Hi, Pat ( the OP of this thread), and all who share good insights. My sense is for: 'use of microscopes in the field'..inverted stands offer no advantages to a humble standard cmpd stand. Why on earth lug delicate :'cover-glass thin bottomed petri dishes into the field ( do you mean a hike to mounta...
by charlie g
Thu Apr 18, 2019 4:48 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Thanks, hobbyist46 for your comments. What I want to do with simple light microscopy...is to revisit the: "1869 McDonald/Pfitzer rule", these two independently established that diatoms form each new valve with existing parent vale, the epitheca ( the top piece/ the larger valve in diatom frustules)....
by charlie g
Wed Apr 17, 2019 2:34 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Hi all, despite the err burps in this thread, I want to keep it going for the stream springtime algae communities. My request to adm, to all, Is it possible for me to change the title name of this thread? Or does this cause havoc with the archive of threads? I wish the title become: " Springtime '19...
by charlie g
Sun Apr 14, 2019 8:33 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

So our stream substrate chips will patiently await diatom/ green thallus algae colonization for direct 'in situ observations' of individual frustule size in Meridion colonies. I am always humbeled about the fast pace of early springtime changes to soils, changes to streams. As Richard Harris in wond...
by charlie g
Sat Apr 13, 2019 9:21 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

So I hope to have plastic chips I configured to plop on my bench microscope slides..to with episcopic illumination...observe how genus : Meridion colonies manifest. Ahh..but weather has so quickly changed..these dear 'cherio benthic diatoms' no longer dominate stream channel pebbles/ stones. My quer...
by charlie g
Thu Apr 11, 2019 9:54 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Wow, charlie, I must ask: are those "whole ananas slice" and "fragment of ananas slice" single radial diatoms or colonies of triangular ones? Yikes Hobbyist46, Hi Hobbyist46...these near 'monocultures' of benthic freshwater diatom genus: Meridion give a golden-brown felt cover to patches of stream ...
by charlie g
Thu Apr 11, 2019 9:24 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Good doggie and I placed a few pieces of plastic rough surface substrate in the stream channel...attached by rubber-bands to stream stones manifesting Meridion benthic diatom colonies ...to try and observe/ image capture benthic diatom colonies of genus: Meridion 'in situ/ on a colonized substrate'....
by charlie g
Fri Mar 29, 2019 6:53 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Charlie Guevara, fingerlakes/US Image of our spring'19 'supermoon' of 3/19...some call it the 'worm moon' as it should correlate with ground softening after winter season wanes.

happy springtime'19...yes BillBuilt...happy springtime..please get out and plant something nice. Charlie guevara
by charlie g
Thu Mar 28, 2019 10:54 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Again I thank this forum for enhancing my microscopy...I never purchased PlanApos in below freezing temps..thanks for all the thoughts...err.. the gent from texas should enjoy his teapot lest a tempest derails his tea time. I am now curious if those diatoms within these imaged stream ciliates are en...
by charlie g
Thu Mar 28, 2019 10:08 pm
Forum: For forum members who want to buy and sell equipment
Topic: Reichert Neozet
Replies: 4
Views: 2625

Re: Reichert Neozet

I have a circa 1960's Reichert/Austria Biozet trinoc stand. Wonderful to see it's 'cousin'. I hope your Reichert finds a good home. I love the organic round curves, and the ball rather than box of the head piece on my Reichert-Biozet. I hope your stand finds a good home and some 'first light' from t...
by charlie g
Thu Mar 28, 2019 9:51 pm
Forum: Miscellaneous
Topic: Question for Pipette users
Replies: 28
Views: 11496

Re: Question for Pipette users

Ooops..this the same thread started a while back?!! My bad. If all you find are the long pastuer pipets...if they are cheap/low cost..(they are cheap here in con.US..and lots available from China)...well buy these long ones and snap off the length you don't want...then 'fire polish at you kitchen ga...
by charlie g
Thu Mar 28, 2019 9:19 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

So in the spirit of enjoying 'microscopy world views' on our hikes, influenced by Dr. Betsey Dexter Dyer's concept of 'microbial field markers'...I have noted at my bench that the dominant coloration of the stream channel pebbles , are the delightful early springtime 'cherios'...those delightfuldiat...
by charlie g
Thu Mar 28, 2019 8:49 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Right you are, err hobbyist, the splendor of communities is rich in temperate zone freshwaters year round. I was lapsing into the 'field marks' of this now dominant diatom species which imparts a golden-brown felt, or fir to stream channel pebbles after the ice is gone. A very lowcost and excellent ...
by charlie g
Thu Mar 28, 2019 8:00 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

Thanks again guys, I guess unless it's water on the mail...I need not fear costly PlanApo ( Nikons etched term on the objective barrels) optics sitting in my outdoor mailbox, just bring the pkgs indoors and leave for hours. With first light, the PlanApo 10/0.45, and the PlanApo 20/0.75 give thrillin...
by charlie g
Thu Mar 28, 2019 7:37 pm
Forum: Miscellaneous
Topic: Question for Pipette users
Replies: 28
Views: 11496

Re: Question for Pipette users

Hi, 75RR, you had a nice thread on this subject a few months ago. The process and protocol is the key issue all are silent on in this thread. You ask here:'the best volume pipet for transfer of animacules'. So we are not concerned with solutions of bacteria mixed into a suspension, we are not concer...
by charlie g
Wed Mar 27, 2019 2:48 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

So I had opened, unpacked and opened the objectives plastic vial with the 20X optic. The 10X optic was indoors in the pkg for over six hours when I brought it to my bench. Bill Porters advice was followed for this 10X optic by chance! thanks all for any opines on cold optics waiting outdoors in a co...
by charlie g
Wed Mar 27, 2019 1:09 am
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

Re: please advise on objective brought indoors from 28 degree F mail box.

thank you so much, Bill Porter for the clear reasons for: 'letting it all stay wrapped till thermal equilibrium'. I now received two Nikon Plan-apo objectives ( I sensed it a great buy...go figure?!, or was it 'cabin-fever in waning winter...with eBay a patient impulse siren?!). The 20X objective fr...
by charlie g
Mon Mar 25, 2019 5:12 pm
Forum: Microscopes and optics
Topic: please advise on objective brought indoors from 28 degree F mail box.
Replies: 22
Views: 6585

please advise on objective brought indoors from 28 degree F mail box.

Yes, my Nikon Plan Apo 20X objective was sitting in it's Nikon vial/wrapped in bubble-foam/ this wrapped in foam inside a USP box/ baggeg as priority mail from con-US to my US home. Please advise..it's a hefty weighted metal optic with lots of glas/ lots of metal internal spacers/ lots of air compar...
by charlie g
Thu Mar 14, 2019 6:10 pm
Forum: Introduce yourself
Topic: Snowy greetings from Finland!
Replies: 8
Views: 3480

Re: Snowy greetings from Finland!

Welcome Rorshack. I.m finger lakes/US region and attempting to setup an artificial stream adjacent to an artificial pond habitat. My goal is to establish a population of freshwater mussels. I cheer your formal occupation, freshwaters are such a diverse, such a precious, such a threatened resource on...
by charlie g
Thu Mar 14, 2019 6:02 pm
Forum: Introduce yourself
Topic: Hi,Greetings from Ireland
Replies: 9
Views: 3317

Re: Hi,Greetings from Ireland

Welcome, Chris, and thanks for the images you share. Your blood smears seem excellent to me! Here in finger lakes/US we are getting ready for our cornbeef,cabbage St.Patricks day traditional feast...yummy.Again, I am impressed with the even balanced illumination and balanced stain colors across the ...
by charlie g
Fri Mar 08, 2019 2:43 am
Forum: Microscopes and optics
Topic: 160/-, planaapo low mag. objectives...please advise?
Replies: 11
Views: 1848

Re: 160/-, planaapo low mag. objectives...please advise?

Thank you Chris R, John, and aponaut ( in no special order..all informative to me)...ah yes the forgiving optical performance with NA under 4.0, and the nature of the symbols: '/-' meaning with, or with out a coverslip...the 4X and 10X planapos should function with my live protist and meiofauna wetm...
by charlie g
Thu Mar 07, 2019 9:56 pm
Forum: Microscopes and optics
Topic: 160/-, planaapo low mag. objectives...please advise?
Replies: 11
Views: 1848

Re: 160/-, planaapo low mag. objectives...please advise?

Thanks for that info! I forgot about: (/-) spec being with or without. I'm impressed that planapo level of correction can be so flexible...but then too..these are low mag objectives I'm asking about. thanks for this info. Charlie g
by charlie g
Thu Mar 07, 2019 9:22 pm
Forum: Microscopes and optics
Topic: 160/-, planaapo low mag. objectives...please advise?
Replies: 11
Views: 1848

160/-, planaapo low mag. objectives...please advise?

High all, for years I've sensed with wetmount live organism slides..my 4X and 10X plan objectives offer similar crisp images with phase 1, and DF contrast methods. Like a lot of live organism observers...I have collected a few planapo higher mag objectives. Today I ask..with Planapo 4X/0.14, 160/-, ...
by charlie g
Thu Mar 07, 2019 8:58 pm
Forum: For forum members who want to buy and sell equipment
Topic: Leica DMIL, lots of micromanipulation gear, over 10K in objectives
Replies: 12
Views: 3187

Re: Leica DMIL, lots of micromanipulation gear, over 10K in objectives

Hello, OP, I visited your link...it is a barrier to the sales: 'the items sold as is'...'no returns'...'I had no time to test the items'. Your best bet is pitching this bulk offering to a con-US microscope dealer/refurbisher for 'parts'. As you can't stand behind the functionality of the manipulator...