Wanted: Leica K2 DIC prism, Nikon L prism

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PeteM
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Wanted: Leica K2 DIC prism, Nikon L prism

#1 Post by PeteM » Thu Jan 23, 2020 10:41 pm

Updated 2/2021 - K2 prism found, and a decent work-around for the Nikon "L" prism also found:

Still wanted:

Leica DM series
- Possibly a K4 DIC condenser prisms for DM, DMR etc. condenser (held in circular mount)

Nikon E600
- "L" prism to fit Nikon C-CU universal condenser


Available for trade or sale
I'm particularly interested in trading away scopes either too heavy or too costly to use with kids in our "Micronaut" program. Also possibly interested in acquiring decent or at least fix-up-able stereo microscopes, which we tend to run short of it supplying parents and kids.

American Optical
- AO Biostar inverted microscope
- AO 20 darkfield scope
- Various components, heads, objectives

B&L
- Balpan very complete with trinocular head, brightfield, phase, and most of a reflected fluorescence rig
- MicroZoom with transmitted & reflected - very nice all around shop & bio scope, complete with pricey LWD objectives, but heavy to move

Leica
- DMLB transmitted DIC microscope. Includes top D sliding prism and condenser prisms compatible with 20x & 40x DIC (!) Also simple polarization
- DMLS scopes with various head (bino, teaching, trinocular, video) and objective options and simple polarization

Leitz
- Various stands, components, trinocular heads etc.

Mitutoyo
- just an FS-50 head

Nikon
- Labophot and Optiphot scopes with various head, phase contrast, and objective options
- older S model scope well equipped
- Nikon E600 transmitted DIC scope (likely spoken for) with five objectives, trinocular head. DIC is on 20x, 40x, and 50x.

Olympus
- BH2 series (BHTU,BHT, BHS) scopes with various head (bino,teaching,trinocular), objective (A,DPlan & SPlan) and simple polarization options
- phase contrast sets
- Wide assortment of Olympus reflected DIC prisms and specially-machined condenser options for psuedo-DIC

Reichert
- large Diastar 420 (100 watt) scope and various polarization & phase contrast options

Zeiss
- Zeiss Standard 18 full DIC scope, plus other "Standard" models with phase contrast, polarization, and binocular/trinocular options
Last edited by PeteM on Sat Feb 13, 2021 8:31 pm, edited 14 times in total.

Tom Jones
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Re: Wanted to buy or trade - DIC parts and more

#2 Post by Tom Jones » Fri Jan 24, 2020 4:59 pm

PM sent.

Tom

a.kat
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Re: Wanted to buy or trade - DIC parts and more

#3 Post by a.kat » Fri Jan 24, 2020 7:28 pm

Hello PeteM,

I'm new to the forum and I don't think I can send you a personal message.

I'm interested in the "Set of GF Zeiss Jena PhV objectives" that you mention. You have only the objectives, right? What are the objectives?

Thanks,
Andrey

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#4 Post by PeteM » Fri Jan 24, 2020 11:12 pm

Andrey,

The set of four Zeiss Jena PhV objectives I have are all Planachromat GF (wide field) infinity. There's a 12.5x, 25x, 40x, and 100x. These have a 25mm mount and the 100x is longer than DIN. By design, the 100x is apparently longer either to incorporate all the extra glass in a wide field plan phase objective or to minimize oil contamination.

I've tried these on both a Leica DMLS and a Nikon E600, which use the same 25mm thread and are infinity. It's likely they would work on M25 to RMS adapters, being infinity and happy to accommodate a longer tube length, but I haven't tried that.

As you probably know, the Zeiss Phv type of phase contrast is somewhat unique in having two phase rings. One can use just the inner one and use the condenser aperture to block off the outer one for some specimens. Or use both annuli and the Phv condenser for maximum contrast. I don't have the matching Zeiss PhV condenser, but have achieved decent phase contrast by matching up a single inner phase ring with various annuli I have on hand.

This is what they look like: https://www.ebay.com/sch/i.html?_from=R ... n+kliton77

If this is what you are looking for and have something to trade, great. If not a trade, I'd sell them for a fraction of those Ebay prices.

a.kat
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Re: Wanted to buy or trade - DIC parts and more

#5 Post by a.kat » Sun Jan 26, 2020 1:06 pm

Thanks for the details and your experience with the objectives. I'm aware of the Jena GF infinity system but have no experience with the PHV. Recently I acquired a Jenaval microscope in good condition but only with bright field objectives. I'm interested in the lower magnifications 12.5x and 25x. For trade I can offer from the same CF250 line the Planachromat 20x 0.40 oo/0.17-A and Planachromat HI 100x 1.30 oo/0-A. I don't need the 20x because I also have the POL version. And 100x is out of my magnification preferences. Even 40x is too much for me :)
Let me know if you need those or if you're willing to sell only the 12.5x and 25x objectives. Have a nice day!

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#6 Post by PeteM » Thu Jan 30, 2020 2:14 am

Hi a.kat -- It probably only makes sense to trade or sell the four Zeiss Phv phase objectives together. Wouldn't need more in trade. Would sell the lot of four Zeiss GF plan infinity phase objectives for less than current Ebay listings for a single one of that type of objective. Once you post a bit more I believe we can send messages.

a.kat
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Re: Wanted to buy or trade - DIC parts and more

#7 Post by a.kat » Thu Jan 30, 2020 10:18 am

Hi PeteM,

I agree and I would have done the same I guess! Hopefully I will be able to contact you soon via PM.

durnis
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Re: Wanted to buy or trade - DIC parts and more

#8 Post by durnis » Wed Feb 19, 2020 11:48 am

PM Sent

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#9 Post by PeteM » Thu May 07, 2020 12:37 am

Several changes to the above list.

Still hoping to find some Nikon Eclipse DIC stuff and a couple Leica prisms.

Several items previously listed are gone.

Zuul
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Re: Wanted to buy or trade - DIC parts and more

#10 Post by Zuul » Tue May 12, 2020 5:30 am

I dropped you a PM.

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#11 Post by PeteM » Thu May 28, 2020 4:26 am

Updated. A Leica "K2" condenser prism for the DM series scopes is now top of the want list. Several items for trade no longer available, a Leica DIC (ICT) scope added.

Karol_
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Re: Wanted to buy or trade - DIC parts and more

#12 Post by Karol_ » Tue Jun 02, 2020 8:12 pm

Dear PeteM,
Can u send me pm with details about Olympus BHS microscope?
Cheers,
Karol

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#13 Post by PeteM » Tue Jun 02, 2020 11:17 pm

Hi Karol,

I suspect that safe shipping to Poland would make it uneconomical for both of us. Especially now. I know, for example, that I can't even get parts sent from Germany to the US unless it's a very pricey shipment method. What I have is a complete stand, with all sorts of options for binocular or trinocular heads, teaching heads, plus sets of Achro, DPlan, SPlan objectives, phase contrast, etc.

I'd urge you to try to find something nearer, maybe German Ebay? If that fails after a while, feel free to message me.

You might also consider an Olympus BHT (same removable nosepieces as the BHS) and a LED upgrade to get the lamp closer to the brightness of a BHS.

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#14 Post by PeteM » Sun Jun 07, 2020 4:47 pm

Just updated the want list - now down to mainly wanting an "L" prism for Nikon Eclipse C-CU condenser and a "K2" prism for Leica DM DIC.

If there's interest, I've been trying to assemble a range of DIC scopes and will soon be able to offer at least comparative impressions between Nikon and Olympus finite DIC, and AO, Leica, Nikon, and Olympus infinite DIC. Don't have any Zeiss experience and if there is ever a thread comparing systems, hope someone else could contribute there.

hero33
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Re: Wanted to buy or trade - DIC parts and more

#15 Post by hero33 » Sat Jun 20, 2020 11:23 pm

American Optical
- AO Biostar inverted microscope
- Various components, heads, objectives

Hello PeteM,
Brand new member, so I can't PM you. Would you be willing to share pics, descriptions, etc., for the Biostar gear you have available? Trying to refurb mine, and looking for as much bling as I can find :)

PeteM
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Re: Wanted to buy or trade - DIC parts and more

#16 Post by PeteM » Sun Jun 21, 2020 1:21 am

PM sent. The extra stuff is mostly A.O. for scopes other than the (complete) Biostar.

PeteM
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#17 Post by PeteM » Sat Jul 18, 2020 4:05 am

Bump - still looking for a Leica K2 prism and a Nikon L prism - as noted above. Lots of stuff as possible swaps (objectives not listed above, heads, etc.). A couple scopes gone, couple added to the list above.

Stew
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#18 Post by Stew » Tue Feb 02, 2021 8:52 pm

Hi PeteM

I’m interested in a dic setup. Do you still have scopes for sale?

Stew

PeteM
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#19 Post by PeteM » Wed Feb 03, 2021 12:03 am

Hi Stew, I have a few that are near ready to go, including a Zeiss Standard 18, a Leica DMRB, and a Nikon E600 Eclipse. Still, haven't quite finished comparisons. PM me when you have enough posts to do so. A couple other forum members are first in line on a Nikon Optiphot and a Leica DMLB. Regards, Pete

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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#20 Post by zzffnn » Wed Feb 03, 2021 3:22 am

Wow, Pete, are you assembling multiple DIC scopes piece by piece, compare them and selling most of them?

That is quite a bit of work. Nikon finite DICs are not easy to find, I heard.

I am in Boston. Please feel free to ask me, if I can help you with anything. There should be surplus scopes for sale here, but I have not found the location or contact person.

I am trying to adapt a PZO DIC system on my teaching Nikon Optiphot Frankenstein scope with LOMO apo objectives (which may or may not work for DIC).
Last edited by zzffnn on Sun Feb 14, 2021 5:23 am, edited 1 time in total.

PeteM
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#21 Post by PeteM » Wed Feb 03, 2021 4:29 am

Hi Fan. I've been gob-smacked by the images DIC can provide. Sort of like tugging on a ball of string and pulling . . and pulling . . . I decided to learn what I could and compare some systems. Eventually I'll keep one or two and try to recover costs on the others. Have to say, while there are some annoyances with each system, I haven't found a transmitted DIC system I don't like. Choosing will be sort of like deciding which kids to send out for adoption.

Like you, I've been playing with a PZO DIC condenser as well. It's a good value and adaptable (I machined a dovetail to fit it to Nikon and Olympus). Finding top prisms that mate really well has been almost-not-quite in many cases for me. In many cases, the PZO prisms are off 45 degrees from where I'd want them - and my adaptation sometimes won't rotate that amount and still clear the stage. A next attempt is likely to pull out a 20x PZO DIC prism and adapt it to an OLympus finite DIC condenser - mine has only the 10x, 40x, and 100x. That way I can get the orientation just right - prism shear angles hopefully close enough to work.

Appreciate your offer. I'm finally pretty close to finding most of the missing pieces (sadly, at a price) for the other scopes and hope to be moving on to some other insanity in a year or so :-).

PeteM
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#22 Post by PeteM » Sat Feb 13, 2021 8:36 pm

Just to add for those interested. I was able to remove the PZO 20x prism and place it, properly oriented, in an Olympus BH2 phase condenser. It does a pretty good job filling in the missing 20x DIC position for an Olympus DIC system with only 10x, 40x, and 100x positions. The prism doesn't allow the deep dark backgrounds an OEM prism might provide, but it extends to a fairly dark gray with an even (to the eye) field and a very good 3D effect.

viktor j nilsson
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#23 Post by viktor j nilsson » Sun Feb 14, 2021 5:07 am

That's great to know, Pete! Did you need to modify the prism at all?

PeteM
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Re: Wanted: Leica K2 DIC prism, Nikon L prism

#24 Post by PeteM » Sun Feb 14, 2021 6:22 am

viktor j nilsson wrote:
Sun Feb 14, 2021 5:07 am
That's great to know, Pete! Did you need to modify the prism at all?
The PZO prisms are housed in a removable metal surround. The diameter was OK to fit into an Olympus phase condenser and be secured by the setscrews. The height, however, was too tall and needed to be cut down to a bit under 6mm thick using a collet and lathe. A bit of a nervous task. I ended up cutting down all four PZO prisms. The 100x, which didn't have as much metal surrounding the larger prism, got a bit of delamination in the corners just from collet pressure.

Picture shows a 10x and 20x PZO installed plus a U-DP100 that didn't have a home in my too-few-holes BX DIC condenser. The U-DP100 is too large to fit, but there is just enough metal in the Olympus phase condensers to bore it out a bit larger.

The PZO 40x and 100x are going to go into a slider. I've since put proper labels to replace the Ph2, Ph3 etc.
BX and PZO prisms in Olympus condenserSmalljpg.jpg
BX and PZO prisms in Olympus condenserSmalljpg.jpg (178.9 KiB) Viewed 318 times

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