Search found 1236 matches

by einman
Mon Nov 11, 2019 2:19 am
Forum: My microscope
Topic: New microscope! AO Stereostar 570
Replies: 8
Views: 208

Re: New microscope! AO Stereostar 570

Very nice scope though. I enjoy them! The stand you have allows for dark field as well.
by einman
Mon Nov 11, 2019 2:02 am
Forum: My microscope
Topic: New microscope! AO Stereostar 570
Replies: 8
Views: 208

Re: New microscope! AO Stereostar 570

Any 0.5 Aux objective extends the working distance significantly making boom stands more desirable over stands such as the one you are using.
by einman
Wed Oct 30, 2019 12:25 am
Forum: Pictures and Videos
Topic: Lacrymaria, pluerostomatid and pretty ciliates
Replies: 10
Views: 440

Re: Lacrymaria, pluerostomatid and pretty ciliates

Incredible videos. Very nicely done!
by einman
Wed Oct 30, 2019 12:19 am
Forum: My microscope
Topic: A new microscope. Go big or go home.
Replies: 35
Views: 790

Re: A new microscope. Go big or go home.

Beautiful scope.
by einman
Wed Sep 18, 2019 2:43 am
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

Just keeping this thread open. I have been traveling but hope to post some additional comments regarding the Leitz oil immersion objective.
by einman
Wed Aug 28, 2019 12:12 am
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

I agree totally!
by einman
Wed Aug 28, 2019 12:10 am
Forum: Specimens, samples and slides
Topic: Glycerin jelly permanent mounting
Replies: 8
Views: 1030

Re: Glycerin jelly permanent mounting

Yes I used Cepacol and the glycerin jelly i made has been almost 5 years in the frig and is only now showing very slight signs of potential microbial growth. I say potential because I have yet to examine what may only be some surface drying perhaps..pure conjecture. Bottom line the Cepacol works gre...
by einman
Tue Aug 27, 2019 5:28 pm
Forum: Specimens, samples and slides
Topic: Glycerin jelly permanent mounting
Replies: 8
Views: 1030

Re: Glycerin jelly permanent mounting

I have had some glycerin jelly I made sitting in my lab frig for years now. Very little discoloration. Although I may see some slight signs of microbial growth. LOL

Never got around to using it. I was trying a different preservative which has worked incredibly.
by einman
Tue Aug 27, 2019 5:22 pm
Forum: My microscope
Topic: Just arrived in the mail from Russia
Replies: 10
Views: 1763

Re: Just arrived in the mail from Russia

The Leitz Diaplan has a 5 position turret and the Aristoplan has a 6 position turret. Leica currently offers 7 position turrets. In fact one of teh reasons holding me back from purchasing an Aristoplan is teh nose turret is not compatible with my Diaplans and so all the work I did assembling several...
by einman
Tue Aug 27, 2019 3:48 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

So I have looked at the Nikon 20X/0.75 Fluor vs the Leitz Pl Fluotar 25X/0.60 objective. The Nikon has about a 25% larger FOV which corresponds well to the lower magnification. Resolution of the Nikon objective was slightly better than the Leitz although very close. I stared at multiple Diatoms for ...
by einman
Tue Aug 27, 2019 12:54 am
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

I have used Olympus splan objectives and they do work. However they also tend to be higher priced than the Nikons. I am always looking for the best value for my money. Although if a good Splan objective pops up I will look at it, especially given the Splans have a wider FOV.
by einman
Sun Aug 25, 2019 2:17 am
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

If higher n.a. could bring you to use oil immersion the Leitz NPL Fluotar 50:1 1,0 is very good. Originally intended for use without cover slip the 0,29mm working distance allow to use it with one as long as the preparation is thin. Also interesting is the Zeiss Jena 40:1 0,95 dry Apo in the later ...
by einman
Sat Aug 24, 2019 1:32 am
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

I did an initial cleaning with Zeiss lens cleaner but it did not seem to help any. I was quite disappointed. In addition, rotating the collar while viewing a slide did not seem to change the image noticeably which was another sign something was not right. Rather than attempt to investigate further I...
by einman
Fri Aug 23, 2019 8:53 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

Well the Nikon 40X/0.85 Fluor objective came in. However, it was an inferior example I fear. Although it appeared to be like new cosmetically and was without scratches etc the image appeared washed out, significantly different than any other fluor objective I own. So I sent it back. The search for a...
by einman
Fri Aug 23, 2019 2:49 am
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

So as an update I thought I would begin posting specifications of the stand, objectives, eyepieces, binocular head etc. The objectives and eyepieces will be mounted on a Leitz Diaplan stand opted with the FSA-GW-R wide field binocular head with secondary photo port. This head uses 30 mm eyepieces on...
by einman
Tue Aug 20, 2019 11:48 pm
Forum: Specimens, samples and slides
Topic: Potted Bamboo Hand Sectioned
Replies: 30
Views: 1853

Re: Potted Bamboo Hand Sectioned

Hi John, your last image is really great! It is nice to see that you acheive such good images just after changeing microscopes. I know Walter Dionis articles from the Micscape magazine which I have read up and down. You wrote "would find a real treat if searching this forum for his material" - did ...
by einman
Tue Aug 20, 2019 5:36 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

All very good information. I have tried the Leitz 10x/26 with an Olympus objective and found them to be acceptable combinations. This is all very interesting!
by einman
Mon Aug 19, 2019 8:15 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

I knew there was some degree of color correction less then Zeiss. Although I have no idea nor read of any way of quantifying it. Hopefully, not sufficient to negate any resolution improvements from the Nikon objectives.
by einman
Mon Aug 19, 2019 7:56 pm
Forum: Specimens, samples and slides
Topic: Potted Bamboo Hand Sectioned
Replies: 30
Views: 1853

Re: Potted Bamboo Hand Sectioned

YOu should consider writing a book using your postings here. The photos,explanations and technique are first rate. I would not hesitate to purchase a copy.
by einman
Mon Aug 19, 2019 7:49 pm
Forum: Specimens, samples and slides
Topic: Potted Bamboo Hand Sectioned
Replies: 30
Views: 1853

Re: Potted Bamboo Hand Sectioned

Fascinating protocol and images as ever, John B! Tip: never get the Bamboo escape from the pot. Bamboo is wildly invasive. Digging out a small grown up Bamboo forest (done that) is hell of a job... Ahhh Hobby, I know what you mean! I initially, in my sheer ignorance, bought this fine plant cheaply ...
by einman
Mon Aug 19, 2019 7:46 pm
Forum: Specimens, samples and slides
Topic: Potted Bamboo Hand Sectioned
Replies: 30
Views: 1853

Re: Potted Bamboo Hand Sectioned

I always enjoy your work- so precise, and informative. Simply excellent!
by einman
Mon Aug 19, 2019 7:38 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

...Although the use of Leitz eyepieces with a Zeiss stand, presumably with Zeiss objectives, is somewhat of a surprise. I have read about more than one case where Periplans were successfuly combined with Zeiss objectives on Zeiss stands, although these were (apparently) narrower field periplans. I ...
by einman
Mon Aug 19, 2019 7:26 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

Thanks Michael. If I have to swap eyepieces to realize an improvement then that defeats my purpose as I the nosepiece would have a mixture of Leitz and Nikon objectives. Although, should using a Nikon eyepiece prove to offer significant benefits with the Nikon Fluor objectives I could set up a separ...
by einman
Mon Aug 19, 2019 7:19 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Re: Nikon Fluor objectives on a Leitz stand

Thanks for the responses. Yes they are 519894. The point of my experiment is to determine if the NIKON Fluor objectives perform better than the Leitz objectives...using the Leitz eyepieces. Simple. I am not trying to identify a better objective/eyepiece combination. Although I do have the correct Ni...
by einman
Mon Aug 19, 2019 4:46 pm
Forum: Microscopes and optics
Topic: Nikon Fluor objectives on a Leitz stand
Replies: 34
Views: 3749

Nikon Fluor objectives on a Leitz stand

So, Although I have a complete array of Oil immersion objectives for my Leitz there are times when I would like higher resolution without resorting to the oil objectives. For example Nikon has a Fluor 20x/0.75 160 TL CF objective that I plan on comparing to my Leitz 25X/0.60 dry Fluotar and Leitz 25...
by einman
Mon Aug 12, 2019 2:06 am
Forum: Microscopes and optics
Topic: Olympus $5000 60x vs Chinese $80 60x
Replies: 20
Views: 1716

Re: Olympus $5000 60x vs Chinese $80 60x

Review my posts on the Chinese Brand Bestscope and comments regarding/comparing to the BX40! I still have the scope and find it quite enjoyable. I have purchased an additional 20x chinese objective and was thinking of purchasing a higher end Olympus brand fluor or planapo. Your observations have bee...
by einman
Thu Jun 20, 2019 11:06 pm
Forum: For forum members who want to buy and sell equipment
Topic: FOR SALE - Leitz Orthoplan ++ extras
Replies: 13
Views: 1450

Re: FOR SALE - Leitz Orthoplan ++ extras

I can relate to your reasons completely! PM me details on the water immersion objectives. I may be interested.
by einman
Thu Jun 20, 2019 10:12 pm
Forum: For forum members who want to buy and sell equipment
Topic: FOR SALE - Leitz Orthoplan ++ extras
Replies: 13
Views: 1450

Re: FOR SALE - Leitz Orthoplan ++ extras

Interesting! Simple question. Why?
Just curious, given your affection for the Orthoplan when you first purchased it.
by einman
Sun May 05, 2019 2:28 am
Forum: Illumination Techniques
Topic: Lighting system for a Wild stereomicroscope
Replies: 5
Views: 1411

Re: Lighting system for a Wild stereomicroscope

I have many light sources ranging from the cheap Ikea LED lamps, which by the way have more than sufficient light, to the more expesnive Leica LED illumination systems selling for hundreds of dollars. The best value is the LED IKEA lamp for about $10 . I have 6 of them. Although I prefer different l...