NEW Nikon 10X M Plan MI Microscope Objective

augusthouse · Post by **augusthouse** » Fri Apr 16, 2010 7:30 pm

NEW Nikon 10X M Plan MI Microscope Objective

What is it? It's a 10X Nikon CF M 210/0, finite objective.

There are a couple of these available on eBay. Item #: 280449535322

Below is an image of one such objective that I have in my kit.

Craig

typestar · Post by **typestar** » Sat Apr 17, 2010 12:41 am

augusthouse wrote:NEW Nikon 10X M Plan MI Microscope Objective
What is it? It's a 10X Nikon CF M 210/0, finite objective.

Craig,

as written in the Auction text, this Nikon 10X M Plan MI- is a Michelson Interference Objective. This objective is used in interferometry.
As far as I remember, the experienced seller "loswah" had been posting in other forums.
He answered me, I do not have a copy anymore, that this lens is for measuring (contact-measuring) and therefore has NO working distance (whatever this means ...). I do not know, if we could use this finite lens on a bellows

best regards:
Christian

augusthouse · Post by **augusthouse** » Sat Apr 17, 2010 12:55 am

Hi Christian,

When not used for 'contact measuring' the WD for this objective @ 210 is 12mm.

Craig

typestar · Post by **typestar** » Sat Apr 17, 2010 1:02 am

Craig,

thankyou for explaination. Have you measured the WD yourself? So it looks it could be usefull. Have you tested yours already? Would you buy one again ?

Thankyou for another response

Christian

augusthouse · Post by **augusthouse** » Sat Apr 17, 2010 1:16 am

Christian,

Yes, I have it connected to the bellows.

I've had this objective for some time and had initially forgotten the actual WD measurement; so I measured again = 12mm.

Craig

augusthouse · Post by **augusthouse** » Sat Apr 17, 2010 1:28 am

Here is a sample image stack taken with this objective. (Nikon D100)

(stacked with Zerene Stacker)

Larger image here (3mb)

Craig

typestar · Post by **typestar** » Sat Apr 17, 2010 2:06 am

augusthouse wrote:Here is a sample image stack taken with this objective. (Nikon D100)

Craig, thankyou very much for the impressive Image (do you remember the enlarging factor (= 10x ?) What kind of butterfly is this?

Will the lens cover a full-frame Nikon D700? So, in comparison to the M Plan 10x/0,25, which I got now - do you think a reasonable difference concerning the resolution, as this has the same aperture...?

Thankyou again!

Christian

augusthouse · Post by **augusthouse** » Sat Apr 17, 2010 2:29 am

Christian wrote:

Will the lens cover a full-frame Nikon D700?

I am unable to answer that question; but I am sure someone else will do the numbers.

The butterfly is a Blue Mountain Swallowtail Papilio ulysses at 10x.
http://en.wikipedia.org/wiki/Papilio_ulysses

I don't have a Nikon M Plan 10x/0,25, so can't compare; but I expect you will be very satisfied with the objective you currently own. I have the (CF) M Plan 5x/0.1, 20x/0.4 ELWD, 40x/0.5 ELWD.

The MI multiple beam (Tolansky) objectives provide higher measuring accuracy, down to 1/100 of the wavelength (approximately 5nm with 540 IF Narrow band filter), due to their sharper fringes.

I don't fully comprehend what the above information is saying but it would be an interesting exercise to see if there are any advantages using the Nikon 10X M Plan MI.

Craig

typestar · Post by **typestar** » Mon Apr 19, 2010 2:21 pm

augusthouse wrote:
The butterfly is a Blue Mountain Swallowtail Papilio ulysses at 10x.
http://en.wikipedia.org/wiki/Papilio_ulysses

I don't have a Nikon M Plan 10x/0,25, so can't compare; but I expect you will be very satisfied with the objective you currently own. I have the (CF) M Plan 5x/0.1, 20x/0.4 ELWD, 40x/0.5 ELWD.
Craig

Craig,
thankyou very much for pointing this out...!

Best regards:

christian

PaulFurman · Post by **PaulFurman** » Sun May 23, 2010 4:22 pm

What about CA correction for this one? I know, there's a sample image but hard to know exactly what to look for. The new Nikon conjugate one from Edmund is out of stock till August. Another one I'm looking at is an infinity CF Plan 10x 0.30 EPI WD 16.5mm to try on a tele lens. I'd rather go with 0.30 NA since I'll be stretching it to more like 15x to fill a full frame sensor. Wow is it ever complicated shopping for these things!

lauriek · Post by **lauriek** » Sun May 23, 2010 4:41 pm

Looking at Craig's larger picture, if I didn't have two good Nikon 10x objectives already I'd snap one of these up. If someone else doesn't soon I might anyway!

rjlittlefield · Post by **rjlittlefield** » Sun May 23, 2010 6:04 pm

Are you looking at a different ad than I am? The one in front of me right now says Buy It Now for $249.99. That's pretty expensive for a 10X 0.25 objective for general use. I notice that the auction number is unchanged from Craig's original posting, now about 5 weeks ago. Apparently they haven't been selling well...

--Rik

Craig Gerard · Post by **Craig Gerard** » Sun May 23, 2010 8:39 pm

Paul,
I haven't noticed any CA or radial smearing.

I've seen the price for this objective expand and contract over the course of two years.

I purchased mine for $99.00 just before the price went up to USD$607. It seems to have settled at $249.00.

The Nikon container has the following details:
"903-79102 CF PLAN MI 10X - DISCONTINUED"

Craig

PaulFurman · Post by **PaulFurman** » Wed Jul 21, 2010 7:15 am

PaulFurman wrote:Nikon conjugate one from Edmund is out of stock till August.

Those are back in stock for only $73 now.

g4lab · Post by **g4lab** » Wed Jul 21, 2010 11:17 am

http://www.viewsfromscience.com/documen ... ds_p1.html

NEW Nikon 10X M Plan MI Microscope Objective

NEW Nikon 10X M Plan MI Microscope Objective

Re: NEW Nikon 10X M Plan MI Microscope Objective