Need help with oldLeitz objetive, and phaco NPL

[Sabatini]

Cordial greetings .
Could someone help me with this little one.

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I found it for sale with several phaco NPL lenses. But I still don't know how it can be useful to me, neither do the phaco .
it would be possible to use them with the Heine condenser? And ,Would they work optimally?
I understand that it does not have a very good contrast when used in brigth field.

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Thank you in advance for your always important help.

[MicroBob]

Hi Sabatini,
the first one is an object marker: On the tip there should be a diamond. There is a light spring inside that applies a small force. The thumbwheel allows to set the circles diameter. Some of the motions might be stuck from hardened grease, and it looks as if the diamond were missing.

How well phase objectives work in other contrast systems is different, I would suggest to simply try it.

Bob

[Sabatini]

Microbob.
You're very kind. Thanks for the valuable information. It turns out to be something I don't think I'd use right now.
As for the Phacos... well I'll try to acquire and test them, but I don't see them as a major improvement over my current use of acromatics

[Galf]

Recently I set up a Phaco system and compared some sets of identical objectives regular/Phaco.
There is a slight loss in contrast in BF with the Phaco's and also the colors seem, and I stress seem a bit flatter than with the regular ones.

But if you do not directly compare, the - or at least most - Phaco's do really well enough on their own. It only becomes critical for photography etc. IMHO.

BTW, do you happen to have the NPl Phaco 25 (170/0.17)?

[Sabatini]

Thank you Galf for your appreciation.
I just happened to get the objectives yesterday. I was about to make some comparisons take pictures and make a post about it . I was able to buy the Leitz phaco NPL 10 x
Phaco NPL 16x
Phaco NPL 25 x
Phaco 40x
I plan to use them with the Leitz Heine condenser as I do not own the 402 Phase condenser.
We'll see how they work.

[Sabatini]

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[Galf]

I think that is a nice setup and please let us know how the combination with the Heine condenser works out. What microscope do you use?
The standard- and NPl objectives are only advertised in combination with the Zernike (402) condenser. The objectives shown with the Heine Condenser have a Pv-notation but I have no idea why they are different, they look more dated as well.

I have the regular 10x and 25x Phaco's and 16/40/100 NPl Phaco. It is hard to find the 10/25 NPl's as well however, to complete the setup.
Luckily I found the tube focussing telescope and the original centering keys so in fact the kit is quite complete except for an original wooden box.

[Sabatini]

I think that is a nice setup and please let us know how the combination with the Heine condenser works out. What microscope do you use?
The standard- and NPl objectives are only advertised in combination with the Zernike (402) condenser. The objectives shown with the Heine Condenser have a Pv-notation but I have no idea why they are different, they look more dated as well.

I have the regular 10x and 25x Phaco's and 16/40/100 NPl Phaco. It is hard to find the 10/25 NPl's as well however, to complete the setup.
Luckily I found the tube focussing telescope and the original centering keys so in fact the kit is quite complete except for an original wooden box.

Hello My friend ,the microscope I use is the ortholux 1 ,here I send you the first tests I did with the Heine capacitor and phaco NPL lenses. The truth is that I liked very much the combination of lenses with thiscondenser and I am very happy with the results I hope you like it.
excuse the pictures but i don't have a good camera. they are handheld and with the cell phone.

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[Sabatini]

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[Galf]

The combination seems to work out fine.
Perhaps it is a fun experiment to compare both condensers with that set of objectives.

[Sabatini]

Galf. Thanks You.