Lomo MIN-1 and a box of bits

Everything relating to microscopy hardware: Objectives, eyepieces, lamps and more.
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Interference
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Lomo MIN-1 and a box of bits

#1 Post by Interference » Tue Feb 28, 2017 3:03 am

The MIN-1 came in its metal lunchbox. It was missing the wedge and wave plate but I found those, so it's complete. (9, 40, 60x)
I also have a box of (probably mostly) Lomo parts.
I'd like to use it for photography. I have FX & APS cameras.
I'd appreciate comments on what fits what, or what's worth using.

It'll need an illuminator, as it just has a mirror.

I could go afocal - ?
or I could take the view tube off, get the right spacer and use direct projection.
How much "Korrection" do the objectives need? I have some Nikon CFs I could use instead.
What tube length would these be- 160? 190?

The Box contains
An MFN-7, an MFN-11, ( see both via http://www.photohistory.ru/index.php?pi ... 4146975530 ) and an anonymous head similar to this cream one, but without any eyepieces or the chimney pieces (about a 48-9mm threaded hole).
The dovetail fits.
They aren't all complete, but there are 7x and 10x Phot K eyepieces.
The trinoc has settings for 1.6x and 2.5x - whether they're up to current quality I wonder?
It has a booklet which I mostly understand - though what does "homal" mean - involved in calculating the magnification.
The other came with darkslides and film holders - quarter plate or so. :)
More usefully there are two darkfield condensers for the scope - rather tight!

Any comments would be appreciated.
Lomo_fieldscope_lunchbox.jpg
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Similar to this - no height adjustment
s-l1600sm.jpg
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Similar to this - black vertical tube and eyepieces absent.
heads-l500.jpg
heads-l500.jpg (22.32 KiB) Viewed 6695 times

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Crater Eddie
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Re: Lomo MIN-1 and a box of bits

#2 Post by Crater Eddie » Tue Feb 28, 2017 3:24 am

The MFN-11 is a good trinoc, the magnification changer is very nice to have. There were a few different phototubes made for it.
I have no experience with the MFN-7 or the MIN-1.
That last trinoc looks like an HT-45 from a LOMO LUMAM infinity system. The HT-45 is not compatible with a finite system.
CE
Last edited by Crater Eddie on Tue Feb 28, 2017 4:24 am, edited 2 times in total.
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB

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Re: Lomo MIN-1 and a box of bits

#3 Post by zzffnn » Tue Feb 28, 2017 3:57 am

Your objectives should say 190, if they are made for 190TL. If you have F numbers instead of NAs, then they are infinity. If neither, just magnification and NA, then 160TL.

If they are 160TL, then you can use the better Nikon CFs. Otherwise, the Nikons won't work well on 190TL or infinity.

LOMO objectives, at least the short 160TL bio objectives, need correction from K eyepieces.

MFN-11 and photography:
http://www.microscopy-uk.org.uk/mag/ind ... photo.html

Homal is a projection type of eyepiece. Ichty or Pau over at photomacrography. net may know more. This is from Raf camera: "Homal is a special projecting system used to take pictures in the visible light. Optical system of homals partially corrects field of view curvature and magnification chromatic aberrations of achromatic and apochromatic objectives. But using homals use lose about 1/3 of the field of view."

If you search LOMO Homal at Raf camera, you will see he has #2, #4 and #6. http://www.rafcamera.com/en/microscopes ... e-homal-vi

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mrsonchus
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Re: Lomo MIN-1 and a box of bits

#4 Post by mrsonchus » Tue Feb 28, 2017 4:22 am

Yes, seems homal means 'flat' - as above mentioned,
see here --> homal meaning

What a lovely looking 'scope - interesting to see what it 'turns into' and to see some pictures if possible. :)
John B

Interference
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Re: Lomo MIN-1 and a box of bits

#5 Post by Interference » Tue Feb 28, 2017 11:19 am

Thanks guys. (I wanted to post something so was lazy and didn't take photos of the real thing )
I'll take a few snaps.

I'll see if the cream coloured head appears to have a tube lens in it - I didn't think to look. :roll:

Now, I have some Nikon CF Infinites, I wonder if they put "correction" in their tube lenses. Anyone know?
Interference

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Re: Lomo MIN-1 and a box of bits

#6 Post by Interference » Wed Mar 01, 2017 3:02 am

Here's a snap of the cream trinoc:

With the lever over one side, the vertical path is clear - no optics.
The only marking is "1x" for straight up and "1.6x" to the eyepieces, which are absent. And 55 to 75 for i-p distance.
Is that a mount for something, with the dovetail (38mm) on one eyetube?

What illumination would you advise for this scope. It would have been the old projector type thing, but would a led device sitting under it, work? I have darkfield condensers OI-10/13 which may be fussy? Would it have been Köhler or Critical?
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cream 1.jpg
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Crater Eddie
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Re: Lomo MIN-1 and a box of bits

#7 Post by Crater Eddie » Wed Mar 01, 2017 4:08 am

That trinoc doesn't look like the HT-45, not sure what that is.
CE
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB

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Crater Eddie
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Re: Lomo MIN-1 and a box of bits

#8 Post by Crater Eddie » Wed Mar 01, 2017 9:15 pm

Unscrew the silver fastener on the black ring on the right ocular port, I'll bet the ring will slide off. It looks to me like a phototube dovetail adapter. It can mount onto a simple phototube, or a viewer ocular port though that would be extremely awkward, and provides a dovetail for other equipment to mount on. I have a very similar device for use on my Olympus scope. I don't use it, but I have it.
CE
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB

Interference
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Re: Lomo MIN-1 and a box of bits

#9 Post by Interference » Wed Mar 01, 2017 10:03 pm

Yes Eddie it does slide off - it's a nice fit in fact.
I wondered if anyone would recognize the 38mm dovetail. Are these things a standard?
I could only think it could be for a camera, but it's a trinoc, so, errm, derr...
20170301_215314_resized.jpg
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The thread on top where the chimney/tube would go is maybe 50mm, and the slightly D shaped blanking piece I've put on the stage, goes where you'd have an analyser etc. Feels all rather agricultural.
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Crater Eddie
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Re: Lomo MIN-1 and a box of bits

#10 Post by Crater Eddie » Wed Mar 01, 2017 10:13 pm

Somebody just stuck it on there. It is to go one something similar to the phototube in your 2nd photo. The dovetail is for mounting a camera adapter. It might not be a LOMO part. I'm not sure your white trinoc is a LOMO part either.
CE
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB

Interference
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Location: Surrey, UK

Re: Lomo MIN-1 and a box of bits

#11 Post by Interference » Wed Mar 01, 2017 10:23 pm

Trinoc is the same size as the Lomo's dovetail - coincidence? Were there independent makers??

Doesn't look like I'll be using it!
Interference

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Re: Lomo MIN-1 and a box of bits

#12 Post by Crater Eddie » Wed Mar 01, 2017 11:20 pm

The dovetails aren't necessarily exclusive. For instance, I can swap heads from my LOMO scopes onto my Olympus and vice versa. I haven't measured them to see how close they are, but they are close enough to fit comfortably. That might well be a LOMO trinoc you have there, but it might not be, that's all I'm saying.
CE


ETA:
Interference wrote:and the slightly D shaped blanking piece I've put on the stage, goes where you'd have an analyser etc.
Wait, what? The trinoc has a slot for this? Cool! Can you show that?
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB

Interference
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Re: Lomo MIN-1 and a box of bits

#13 Post by Interference » Thu Mar 02, 2017 12:16 am

Ah, got you. I thought they were all different, thanks.
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Re: Lomo MIN-1 and a box of bits

#14 Post by zzffnn » Thu Mar 02, 2017 1:09 am

I don't get this either:

Quote
and the slightly D shaped blanking piece I've put on the stage, goes where you'd have an analyser etc.
Unquote

Maybe show a photo?

And yes, dovetail size is not exclusive. Tube length may or may not be different between different heads from different brands. Nosepiece/head mount is part of the tube length too. If two 160TL brands have the same nosepiece/head mount length, then head tubes should be the same.

I suggest asking member Octagon, as he has many Zeiss and LOMO scopes: memberlist.php?mode=viewprofile&u=517

Also Charles, who owns many Zeiss scopes: memberlist.php?mode=viewprofile&u=230

That head looks like a Zeiss, though I am not positive.

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Re: Lomo MIN-1 and a box of bits

#15 Post by Interference » Thu Mar 02, 2017 2:23 am

OK - Note the same (Lomo size) dovetail is used where the bino mounts onto the prism housing, detatched for stability in some of these. The "D" part is thick, about 11mm, & 13.5mm thick for the 20mm wide center section.
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