Post Contents [hide]
- Introduction
- Objective power
- Aberrations correction
- Other features
- LOMO objective parameters
- A. OBJECTIVES FOR WORKING IN TRANSMITTED LIGHT
- B. OBJECTIVES FOR WORKING IN REFLECTED LIGHT
Introduction
LOMO microscope objectives offer good quality/price ratio.
We have some old stock LOMO objectives for sale, and here is some info on them compiled together for your convenience. The info comes from a couple of reference books. The theory below is significantly simplified, and its main purpose is to give you general ideas, not to show precise physics of light.
A microscope objective creates a real, inverted and enlarged image of the object. The main parameter of the objective is its power (magnification factor). The most common objectives provide 3x - 90x magnifications.
Another important objective parameter is a numerical aperture that affects the objective resolution. Common numeric apertures are from 0.02 to 1.40. Definition: Numerical Aperture is a dimensionless number that characterizes the range of angles over which the objective can accept light. It is a measure of the ability of an optical system to gather and resolve fine details of an object. Formula: NA is calculated using the formula NA = n * sin(α), where n is the refractive index of the medium between the lens and the specimen, and α is the half-angle of the maximum cone of light that can enter the objective. Importance: Higher NA values generally correspond to better resolution and improved image quality. As you noticed, NA depends on the refractive index of medium. For example, this index is 1.0 for air, 1.33 for water, 1.515 for cedar oil. That is why immersion objectives were invented. Adding a drop of a liquid between the objective and specimen may significantly improve the system resolution and image quality. | |
Total microscope magnification is the objective power multuplied by the eyepiece power. For example, 40x objective and 15x eyepiece will give you 40x15 = 600x magnification.
The practical limit of light microscope magnification is generally around 1000x to 2000x. This limit is determined by several factors related to the physics of light and the capabilities of optical systems. Beyond this range, the limitations of optical microscopy become more pronounced, and alternative techniques such as electron microscopy are often employed for higher magnifications. That is why you will not find a LOMO objective with larger than 125x power, or LOMO microscope eyepiece with larger than 17x power (2125x total magnification that is slightly beyond the practical limit). Other manufacturers may have even 500x objectives, but I don't know how well they perform with their relatively low (0.75) numerical aperture.
Objective power
Based on the magnification and numeric aperture, microscope objectives are grouped to low power, medium power and high power.
Low power objectives have 0.02 - 0.25 numeric aperture and 1x - 10x magnification. Such objectives have long work distance and large field of view.
Medium power objectives have 0.30 - 0.65 numeric aperture and 10x - 40x magnification. Their work distances are 0.5 - 8mm, and their field of view is 0.2 - 2mm.
High power objectives have 0.7 - 1.60 numeric aperture and 40x - 125x magnification. They have very short work distances (down to hundredths of a mm).
Aberrations correction
Different objectives have different degrees of aberration correction.
Achromats are most simple optical systems. Their chromatic aberration is corrected for two wavelengths. The image they produce have some color tint.
Achromatic objectives give sharp enogh image in the center , but image is soft at the edge of the field of view due to curvature.
Image quality of achromats is suitable for usual everyday applications like observing or picking an object.
These objectives are divided into a few groups:
1) objectives for transmitted light, 160mm tube length, 0.17mm cover glass;
2) objectives for reflected light, 190mm or infinity tube length, without cover glass;
3) epiobjectives for reflected light, bright or dark field, 190mm or infinity tube length, without cover glass.
Achromats of low and medium power are used with Huygens eyepieces. Objectives of high power are used with compensating eyepieces.
Achromatic objectives are widely used in biology, mineralogy, metallography.
Apochromats have better optical system. Their chromatic aberration is corrected for three wavelengths. The image they produce is colorless. Their chromatic aberrations are about 10 times lower than with achromats.
To achieve this degree of correction, these objectives use more complex optical construction and special glass, including fluorite and quartz.
All apochromat objectives have chromatic magnification aberration, and you should use compensating eyepieces with them therefore.
Also, they have some image field curvature. This can be compensated with homal eyepieces.
Apochromats can be divided into two groups:
1) objectives for transmitted light, 160mm tube, 0.17mm cover glass;
2) objectives for reflected light, 190mm or infinity tube, without cover glass.
You should always use compensating eyepieces with achromatic objectives.
Planachromats and Planapochromats contain 9-12 glass elements. Theu have flat field of view evenly sharp in the center and at the edge. They usually have wider field of view, and can be used with wide-angle eyepieces that is useful for taking photos. Also, they have increased to 45mm parfocal height.
Planobjectives are divided into two groups:
1) planachromats for transmitted light, 160mm tube length, 0.17mm cover glass;
2) planobjectives for reflected light, infinity tube, wuthout cover glass.
These objectives are usually used with compensation eyepieces for microphotohraphy and microprojection.
Special objectives are made for particular microscopes.
1) objectives for gelatine emulsion researches are purposed for MBI-8M, MBI-9 and MIRE-2 microscopes;
2) objectives for ultraviolet light are purposed for MUF-5 and MUF-6 microscopes. They are made of few types - quartz-fluorite, mirror, mirror-lens.
3) objectives for infrared light are purposed for infrared microscopes;
4) microplanaras are purposed for macrophotorgaphy with FMN-2 device.
Other features
Objectives can use different media between their front element and object. This can be air (dry objectives) or liquid (immersion objectives). Immersion objectives have a band of corresponding color - black for oil and glycerine immersion, white for water immersion.
Other important parameters are tube length, work distance and parfocal height. Tube length is a microscope tube distance from the objective flange to the eyepiece flange. Common distances for LOMO objectives are 160mm and 190mm. Infinity tube means that there is an additional achromatic lens is installed in the tube behind the objective. Work distance is a distance from the top surface of a cover glass to the first objective glass holder. Parfocal height is a distance from the object plane to the objective flange. |
Some general info about objective body marks.
- А - objectives for research using the phase-dark-field contrast method
- Л - objectives for research in luminescence light
- П - objectives for research in polarized light
- Ф - objectives for phase contrast research
- АЛ - objectives for dark-field contrast method research in luminescence light
- ЛК - contact objectives for fluorescent microscopes
- ФЛ - objectives for phase contrast research in luminescence light
- ВИ - water immersion
- ГИ - glycerine immersion
- МИ - oil immersion
- АПО - apochromatic objective
- ПЛАН - planachromatic objective
- ПЛАН-АПО - planapochromatic objective
LOMO objective parameters
I'll gradually add links to objectives in our catalog for convenience. Please check back later.
Objective code | Power | Numeric aperture | Focal length, mm | Immersion | Work distance, mm | Parfocal height, mm | Marks/links | Notes |
A. OBJECTIVES FOR WORKING IN TRANSMITTED LIGHTI. ACHROMATIC OBJECTIVES(160mm tube length, 0.17mm cover glass) a) for biological microscopes | ||||||||
151.01 / OM-30 | 1x | 0.03 | 33.43 | Dry | 31.00 | 70 | ||
151.02 / OM-12 | 3.7x | 0.11 | 33.10 | Dry | 27.20 | 50 | ЛОМО 3.7 0.11 | |
151.03 / M-42 | 8x | 0.20 | 18.14 | Dry | 8.57 | 33 | 8x 0.2 | |
151.04 / OM-5 | 10x | 0.30 | 15.50 | Dry | 7.24 | 33 | ||
151.05 / OM-27 | 20x | 0.40 | 8.40 | Dry | 1.70 | 33 | 20 0.40 | |
151.06 / MЩ | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | 40 0.65 | |
OX-1 | 40x | 0.65 | 4.25 | Dry | 0.70 | 33 | ЛОМО 40 0.65 | Spring loaded tip |
151.07 / OM-23 | 40x | 0.75 | 4.32 | Water | 1.80 | 32.7 | ЛОМО ВИ 40 0.75 | |
O-40 | 40x | 0.60 | 4.4 | Dry | 0.70 | 33 | Narrow body | |
151.08 / OM-45 | 50x | 1.00 | 3.60 | Water | 0.25 | 32.7 | ||
151.09 / OM-14 | 60x | 0.85 | 2.99 | Dry | 0.14 | 33 | ||
151.10 / O2-60 | 60x | 0.85 | 2.99 | Dry | 0.14 | 33 | Spring loaded tip | |
? | 70x | 1.25 | ? | Water | ? | ? | АПОХР ВИ 70x1.25 | Correction collar. Absent in old books |
151.11 / OM-43 | 85x | 1.0 | 2.05 | Water | 0.05 .. 0.16 | 32.7 | ЛОМО ВИ 85x1.0 | Cover glass correction collar |
OM-43-1 | 85x | 1.0 | 2.1 | Water | 0.09 | 32.7 | Spring loaded tip | |
151.13 / OM-41 | 90x | 1.25 | 1.96 | Oil | 0.10 | 32.7 | Spring loaded tip | |
151.14 / OM-24 | 90x | 1.25 .. 0.6 | 1.96 | Oil | 0.10 | 32.7 | Iris diaphragm | |
151.15 / O6M-90 | 90x | 1.25 .. 0.6 | 1.96 | Oil | 0.10 | 32.7 | ЛОМО МИ 90 | Spring loaded tip, iris diaphragm |
OX-26 | 4x | 0.12 | 31.4 | Dry | 6.20 | 45 | ЛОМО 4 0.12 | |
OX-27 | 6.3x | 0.17 | 24.1 | Dry | - | 45 | ||
OX-28 | 10x | 0.25 | 16.7 | Dry | 5.07 | 45 | ЛОМО 10 0.25 | |
OX-29 | 16x | 0.40 | 12.0 | Dry | 1.76 | 45 | ||
OX-30 | 40x | 0.65 | 4.66 | Dry | 0.58 | 45 | ЛОМО 40 0.65 160/0.17 | |
OX-31 | 60x | 0.85 | 3.01 | Dry | 0.19 | 45 | ||
OX-32 | 100x | 1.25 | 1.89 | Oil | 0.11 | 45 | 100/1.25 160/0.17 | |
ОХ-10-1 | 10x | 0.30 | Dry | 6.8 | 45 | ЛОМО 10 0.30 160/0.17 | ||
ОХ-25-1 | 25x | 0.50 | 7.07 | Dry | 1.4 | 45 | ЛОМО 25 0.50 160/0.17 | |
ОХ-50 | 50x | 1.0 .. 0.7 | Oil | 0.15 | 45 | ЛОМО МИ 50x1.0 160/0 | ||
b) for polarizing microscopes | ||||||||
151.31 / OM-27П | 20x | 0.40 | 8.40 | Dry | 1.70 | 33 | ЛОМО П 20 0.40 | Letter П on the body |
151.32 / МЩ-П | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | П 40 0.65 | Letter П on the body |
151.33 / O2-60П | 60x | 0.85 | 2.99 | Dry | 0.14 | 33 | ЛОМО П 60 0.85 | Spring loaded tip, letter П on the body |
151.34 / OM-41П | 90x | 1.25 | 1.96 | Oil | 0.10 | 32.7 | Spring loaded tip, letter П on the body | |
151.35 / OM-14П | 60x | 0.85 | 2.99 | Dry | 0.14 | 33 | Letter П on the body | |
151.36 / ОСФ-11П | 11x | 0.40 | 14.75 | Dry | 13.00 | 51 | П ЛОМО 11 0.40 | Iris diaphragm. Magnification with a segment is 16.4x. |
151.37 / ОСФ-14П | 14x | 0.22 | 11.60 | Dry | 13.73 | 50 | Iris diaphragm. Magnification with a segment is 22.4x. | |
151.38 / ОСФ-22П | 22x | 0.12 | 6.67 | Dry | 16.39 | 48 | ||
151.39 / ОСФ-26П | 26x | 0.19 | 5.99 | Dry | 15.90 | 50 | ||
151.40 / ОМП-3.7 | 3.7x | 0.11 | 33.10 | Dry | 27.2 | 50 | ||
151.41 / ОМП-5.5 | 5.5x | 0.16 | 24.45 | Dry | 16.0 | 37 | ||
151.42 / ОСФ-5 | 3.8x | 0.11 | 33.00 | Dry | 27.00 | 49 | Iris diaphragm. Magnification with a segment is 5.2x. | |
ОСФ-6П | 6.4 | 0.17 | 21.6 | Dry | 14.2 | 50 | Iris diaphragm. Magnification with a segment is 10.0x. | |
c) for phase-contrast devices | ||||||||
151.51 / ФОМ-5 | 10x | 0.30 | 15.5 | Dry | 7.24 | 33 | ЛОМО Ф 10 0.30 | Letter Ф on the body |
ФОМ-5Л ? | 10x | 0.30 | 15.5 | Dry | 7.27 | 33 | ЛОМО ФЛ 10 0.30 | Marked ФЛ on the body |
151.52 / ФОМ-27 | 20x | 0.40 | 8.4 | Dry | 1.70 | 33 | ЛОМО Ф 20 0.40 | Letter Ф on the body |
151.53 / ФОМ-27-2 | 20x | 0.40 | 8.4 | Dry | 1.70 | 33 | 2 phase rings. Mark Ф-2 on the body. | |
151.54 / Ф-МЩ | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | ЛОМО Ф 40 0.65 | Letter Ф on the body |
151.55 / ФМЩ-2 | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | Ф-2 ЛОМО 40 0.65 | 2 phase rings. Mark Ф-2 on the body. |
151.56 / ФОМ-23 | 40x | 0.75 | 4.32 | Water | 1.80 | 32.7 | Letter Ф on the body | |
151.57 / ФОМ-41 | 90x | 1.25 | 1.96 | Oil | 0.10 | 32.7 |
| Letter Ф on the body |
? | 90x | 1.25 | Oil | Spring loaded tip | ||||
151.58 / ФОМ-41-2 | 90x | 1.25 | 1.96 | Oil | 0.10 | 32.7 | Mark Ф-2 on the body | |
d) for a phase-darkfield device | ||||||||
151.66 / A-OM-27 | 20x | 0.40 | 8.40 | Dry | 1.70 | 33 | ЛОМО ФА 20 0.40 | Mark ФА on the body |
151.67 / А-МЩ | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | ЛОМО ФА 40 0.65 | Mark ФА on the body |
151.68 / A-OM-41 | 90x | 1.25 | 1.96 | Oil | 0.10 | 33 | ЛОМО ФА МИ 90 1.25 | Mark ФА on the body |
e) for fluorescent microscopes | ||||||||
151.76 / OM-33Л | 10x | 0.40 | 15.98 | Dry | 3.08 | 33 | ЛОМО Л 10 0.40 | Letter Л on the body |
151.77 / OM-33ЛO | 10x | 0.40 | 15.98 | Dry | 3.08 | 33 | Letter Л on the body | |
151.78 / OM-27Л | 20x | 0.40 | 8.4 | Dry | 1.70 | 33 | ЛОМО Л 20 0.40 | Letter Л on the body |
151.79 / O5B-30Л | 30x | 0.90 | 5.49 | Water | 1.16 | 32.7 | ЛОМО Л ВИ 30x0.90 | Letter Л on the body |
151.80 / МЩ-Л | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | Letter Л on the body | |
151.81 / МЩ-ЛО | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | Letter Л on the body | |
151.82 / OM-23Л | 40x | 0.75 | 4.32 | Water | 1.80 | 32.7 | ЛОМО Л ВИ 40 0.75 | Letter Л on the body |
151.83 / OM-41Л | 90x | 1.25 | 1.93 | Oil | 0.10 | 32.7 | Л МИ 90 1.25 | Letter Л on the body |
f) for fluorescent microscopes combined with phase-contrast devices | ||||||||
151.91 / Ф-ОМ-5Л | 10x | 0.30 | 15.50 | Dry | 7.24 | 33 | Mark ФЛ on the body | |
151.92 / Ф-МЩ-Л | 40x | 0.65 | 4.35 | Dry | 0.55 | 33 | ЛОМО ФЛ 40 0.65 | Mark ФЛ on the body |
151.93 / Ф-ОМ-41Л | 90x | 1.25 | 1.96 | Oil | 0.10 | 32.7 | ФЛ ЛОМО МИ 90 1.25 | Mark ФЛ on the body |
g) for gelatine emulsion research | ||||||||
151.96 / OM-32 | 90x | 1.25 | 2.02 .. 1.95 | Oil | 0.30 .. 0.12 | 32.7 | МИ-ЖЕЛ 90x1.25 | Correction collar. Gelatine layes thicknes is 0-0.25mm |
II. PLANACHROMATIC OBJECTIVES(160mm tube length, 0.17mm cover glass) a) for biological microscopes | ||||||||
152.01 / OM-3 | 3.5x | 0.10 | 29.92 | Dry | 23.40 | 36.5 | ЛОМО ПЛАН 3.5x0.10 | Mark ПЛАН on the body |
152.02 / OM-2 | 9x | 0.20 | 15.50 | Dry | 13.50 | 33 | ЛОМО ПЛАН 9x0.20 | Mark ПЛАН on the body |
152.03 / OM-31 | 20x | 0.40 | 8.49 | Dry | 0.16 | 33 | ЛОМО ПЛАН 20 0.40 | Mark ПЛАН on the body |
152.04 / OM-29 | 40x | 0.65 | 4.22 | Dry | 0.85 | 33 | Mark ПЛАН on the body | |
ОПХ-10 | 10x | 0.20 | 16.5 | Dry | 8.2 | 45 | П ПЛАН 20 0.40 | |
ОПХ10Л | 10x | 0.22 | 16.5? | Dry | 14.0 | 45 | ЛОМО Л ПЛАН 10x0.22 | |
b) for polarizing microscopes | ||||||||
152.21 / OM-3П | 3.5x | 0.10 | 29.92 | Dry | 23.4 | 36.5 | Mark П on the body | |
152.22 / OM-2П | 9x | 0.20 | 15.50 | Dry | 12.9 | 38.0 | ЛОМО П ПЛАН 9x0.20 | Mark П on the body |
ОПХ-2.5П | 2.5x | 0.05 | 62.5 | Dry | 9.0 | 45 | ЛОМО П ПЛАН 2.5 0.05 | |
ОПХ-25П | 25x | 0.50 | 6.5 | Dry | 0.55 | 45 | Iris diaphragm | |
ОПХ-40П | 40x | 0.65 | 4.0 | Dry | 0.44 | 45 | ЛОМО П ПЛАН 40 0.65 | Spring loaded tip |
ОПХ-60П | 60x | 0.85 | 2.7 | Dry | 0.22 | 45 | Spring loaded tip | |
III. APOCHROMATIC OBJECTIVES(160mm tube, 0.17mm cover glass) a) for biological microscopes | ||||||||
153.01 / OC-6 | 6x | 0.15 | 25.59 | Dry | 7.00 | 45.8 | ||
153.02 / OM-8 | 10x | 0.30 | 15.10 | Dry | 4.80 | 33 | ЛОМО АПО 10 0.30 | |
OM-18 | 10x | 0.30 | 15.1 | Dry | 4.80 | 33 | Spring loaded tip | |
153.03 / OM-21 | 20x | 0.65 | 8.43 | Dry | 0.67 | 33 | ЛОМО АПО 20 0.65 | Spring loaded tip |
153.04 / OM-16 | 40x | 0.95 | 4.40 | Dry | 0.12 .. 0.22 | 33 | ЛОМО АПО 40x0.95 | Correction collar |
153.05 / OM-15 | 60x | 1.0 .. 0.7 | 3.01 | Oil | 0.22 | 32.7 | Iris diaphragm | |
153.06 / O6AM-60 | 60x | 1.0 .. 0.7 | 3.01 | Oil | 0.22 | 32.7 | ЛОМО АПО 60 | Iris diaphragm, spring loaded tip |
153.07 / OHA-60 | 60x | 1.30 | 2.99 | Oil | 0.28 | 32.7 | Spring loaded tip | |
153.08 / OM-25 | 70x | 1.23 | 2.52 | Water | 0.14 .. 0.04 | 32.7 | ЛОМО АПО-ВИ 70x1.23 | Correction collar |
O2AM-90 | 90x | 1.30 | 2.0 | Oil | 0.10 | 32.7 | Spring loaded tip | |
OAB-60 | 60.9x | 1.0 | 2.9 | Water | 0.76 | 32.7 | ||
OAB-65 | 65x | 1.1 | 2.7 | Water | 0.19 | 32.7 | ||
153.09 / OM-20 | 90x | 1.30 | 2.00 | Oil | 0.10 | 32.7 | АПО-МИ 90 1.30 | |
153.10 / OHA-90 | 90x | 1.30 | 2.00 | Oil | 0.10 | 32.7 | ЛОМО АПО-МИ 90 1.30 | Spring loaded tip |
b) for phase-contrast devices | ||||||||
153.41 / Ф-ОМ-25 | 70x | 1.25 | 2.52 | Water | - | 32.7 | АПОХР ВИ 70x1.23Ф | Correction collar, letter Ф on the body. |
153.42 / Ф-ОМ-25-2 | 70x | 1.23 | 2.52 | Water | 0.14 .. 0.04 | 32.7 | Correction collar, marked Ф-2 on the body (2 phase rings). | |
c) for a phase-drakfield device | ||||||||
153.51 / A-OM-25 | 70x | 1.23 | 2.52 | Water | 0.07 | 32.7 | Marked ФА on the body | |
153.52 / O2-AB-70A | 70x | 1.23 | 2.52 | Water | 0.07 | 32.7 | ФА ЛОМО АПО-ВИ 70 1.23 | Spring loaded tip |
d) for fluorescent microscopes | ||||||||
OM-21Л | 20x | 0.65 | 8.43 | Dry | 0.67 | 33 | Л АПО 20 0.65 | |
? | 60x | 1.0 | ? | Water | ? | ? | ЛОМО Л ФПО-ВИ 60x1.0 D=0 | Absent in old reference books |
153.61 / OM-25Л | 70x | 1.23 | 2.52 | Water | 0.07 | 32.7 | Л ЛООМП АПО-ВИ 70x1.23 | Letter Л on the body |
ОАВ-65Л | 65x | 1.1 | 2.7 | Water | 0.19 | 32.7 | ЛОМО Л АПО-ВИ 65 1.1 | Letter Л on the body |
153.62 / O2-AB-70Л | 70x | 1.23 | 2.52 | Water | 0.07 | 32.7 | ЛОМО Л АПО-ВИ 70 1.23 | Letter Л on the body, spring loaded tip |
OM-43Л | 85x | 1.0 | 2.05 | Water | 0.05 .. 0.16 | 32.7 | ЛОМО ВИ 85x1.0 Л | Correcttion collar |
e) for gelatine emulsion research | ||||||||
153.81 / OC-20 | 20x | 0.80 | 8.40 | Oil | 1.10 | 32.7 | АПО-МИ 20 0.80 ЖЕЛ.0-09 | Gelatine layer thickness 0-0.90mm |
153.82 / OC-22 | 60x | 1.25 | 3.03 .. 2.95 | Oil | 0.40 | 32.7 | Correction collar. Gelatine layer thickness 0-0.25mm | |
IV. PLANAPOCHROMATIC OBJECTIVES(for biological, bacteriological and other researches) | ||||||||
ОПА-1 | 10x | 0.30 | 15.8 | Dry | 5.2 | 45 | ПЛАН-АПО 10 0.30 | |
ОПА-2 | 16x | 0.40 | 9.6 | Dry | 0.64 | 45 | ПЛАН-АПО 16 0.40 | |
ОПА-3 | 40x | 0.65 | 3.9 | Dry | 0.31 | 45 | ПЛАН-АПО 40 0.65 | Spring loaded tip |
ОПА-4 | 60x | 0.85 | 2.6 | Dry | 0.23 | 45 | ПЛАН-АПО 60 0.85 0.17±0.01 | Spring loaded tip |
ОПА-5 | 100x | 1.25 | 1.5 | Oil | 0.15 | 45 | ПЛАН-АПО-МИ 100x1.25 | |
ОПА-6 | 25x | 0.50 | 6.5 | Dry | 0.61 | 45 | Spring loaded tip | |
ОПА-40 | 40x | 0.65 | 4.0 | Dry | 0.72 | 45 | ||
ОПА-60 | 60x | 0.90 | 2.7 | Dry | 0.22 | 45 | Spring loaded tip | |
V. SPECIAL OBJECTIVES FOR WORKING IN TRANSMITTED LIGHTa) mirror and mirror-lens objectives for ultraviolet and visible part of spectrum | ||||||||
154.01 / OK-40 | 40x | 0.50 | 4.3 | Dry | 2.0 | 33 | УФ 40 0.50 | 211-800nm |
154.02 / OHЗ-75A | 75x | 0.65 | 2.32 | Dry | 0.23 | 33 | 243-589nm | |
154.03 / OK-75 | 75x | 1.0 | 2.20 | Glycerine | 0.25 | 32.7 | 250-589nm | |
154.04 / OK-91 | 90x | 1.0 | 2.07 | Glycerine | 0.27 | 32.7 | 250-600nm | |
154.05 / OHЗ-115 | 115x | 0.70 | 1.50 | Dry | 0.19 | 36 | 243-589nm | |
154.06 / OHЗ-125 | 125x | 1.10 | 1.45 | Glycerine | 0.25 | 32.7 | ГИ 125 1.1 | 250-589nm |
b) ultraviolet (quartz-fluorite) objectives | ||||||||
154.21 / OK-5 | 5x | 0.08 | 24.89 | Dry | 17.00 | 33 | 230-589nm | |
154.22 / OK-10-3 | 10x | 0.20 | 15.29 | Dry | 6.61 | 33.2 | 250-330nm | |
OK-120 | 20x | 0.40 | 8.3 | Dry | 0.22 | 33 | ЛОМО УФ 20 0.40 | 260-280nm; 300-380nm; 350-380nm; 380-434nm |
154.23 / OK-50 | 48x | 0.65 | 3.61 | Dry | 0.10 | 32.4 | 250-313nm | |
154.24 / OK-58 | 58x | 0.80 | 3.09 | Water | 0.11 | 30 | ВИ 58 0.80 УФ | 248-280nm |
c) mirror-lens objectives for infrared part of spectrum | ||||||||
154.41 / ОЗ-10ИК | 10x | 0.30 | 18.44 | Dry | 3.86 .. 2.49 | 37.2 | Correction collar. 1050-2200nm | |
ОНЗ-10 | 40x | 0.50 | 4.2 | Dry | 5.0 | 33 | 1000-7000nm | |
ОР-75ИК | 75x | 0.65 | 2.4 | Dry | 0.20 | 33.5 | 700-4500nm | |
ОР-40ИК | 40x | 0.70 | 4.6 | Dry | 1.6 | 67 | 700-5000nm | |
154.42 / OPM-75ИК | 74x | 1.00 | 2.10 | Oil | 0.28 | 32.7 | ЛОМО МИ 75 1.0 | 800-1600nm |
d) objectives for macrophotography (microplanars) | ||||||||
154.61 / ОП-15 | 15x | 1:4.5 | 40.00 | МИКРОПЛАНАР 1:4.5 F-40 | Iris diaphragm | |||
154.62 / ОП-16 | 10x | 1:4.5 | 65.00 | МИКРОПЛАНАР 1:4.5 F-65 | Iris diaphragm | |||
154.63 / ОП-17 | 5x | 1:4.5 | 100.00 | МИКРОПЛАНАР 1:4.5 F=100 | Iris diaphragm | |||
154.64 / ОП-111 | 0.5x-1.0x | 1:6.3 | 150.00 | КОРРЕКТАР 1:6.3 F=150 | Iris diaphragm | |||
B. OBJECTIVES FOR WORKING IN REFLECTED LIGHTI. ACHROMATS FOR 190MM TUBEa) for biological microscopes | ||||||||
155.01 / OM-8 | 21x | 0.40 | 8.40 | Dry | 1.80 | 14.4 | ||
155.02 / OM-9 | 40x | 0.65 | 4.59 | Dry | 0.50 | 12.3 | ||
155.03 / OM-10 | 95x | 1.25 | 1.96 | Oil | 0.06 | 12.2 | ЛОМО МИ 95x1.25 190 | |
b) for polarizing microscopes | ||||||||
155.11 / OM-12П | 4.7x | 0.11 | 33.10 | Dry | 25.40 | 48.0 | П ЛОМО 4.7x0.11 190 | Letter П on the body |
155.12 / OM-13П | 9x | 0.20 | 18.14 | Dry | 8.14 | 25.0 | Letter П on the body | |
155.13 / OM-38П | 11x | 0.25 | 16.00 | Oil | 0.50 | 27.6 | Letter П on the body | |
155.14 / OM-8П | 21x | 0.40 | 8.40 | Dry | 1.80 | 14.4 | ЛОМО 21x0.40 190-П | Letter П on the body |
155.15 / OM-44П | 30x | 0.65 | 6.16 | Oil | 0.40 | 20.75 | ЛОМО МИ 30x0.65 190-П | Letter П on the body |
155.16 / OM-9П | 40x | 0.65 | 4.59 | Dry | 0.50 | 12.3 | ЛОМО 40x0.65 190-П | Letter П on the body |
155.17 / OM-10П | 95x | 1.25 | 1.96 | Oil | 0.06 | 12.2 | Letter П on the body | |
c) for fluorescent microscopes | ||||||||
155.21 / OM-10Л | 95x | 1.25 | 1.96 | Oil | 0.05 | 12.2 | Letter Л on the body | |
155.22 / ОД-10ЛК | 10x | 0.40 | 20.59 | Dry | 43.5 | ЛОМО ЛК 10x0.40 190 | Marked ЛК on the body (contact, d=0.1mm) | |
155.22 / ОД-25ЛК | 24.25x | 0.75 | 11.24 | Dry | 39.0 | ЛОМО ЛК 25x0.75 190 | Marked ЛК on the body (contact, d=0.036mm) | |
ОД-40ЛК | 40x | 1.00 | 4.84 | Gelatine | 0.11 | 38.7 | Correction collar | |
ОЭ-10ЛК | 10x | 0.30 | 10.7 | Gelatine | 0.10 | 41.1 | ||
ОЭ-20ЛК | 20x | 0.60 | 11.2 | Gelatine | 0.02 | 30.7 | ||
155.22 / О-60ЛК | 60x | 1.25 | 3.18 | Oil | 31.0 | Marked ЛК on the body (contact, d=0-0.024mm) | ||
43x | 1.0 | ЛОМО ЛК 190 43x1.0 | ||||||
60x | 1.15 | ЛОМО ЛК 60x1.15 190 | ||||||
d) epiobjectives for biological microscopes | ||||||||
155.31 / ОЭ-9 | 9x | 0.20 | 18.4 | Dry | 5.40 | 25.0 | ЛОМО 9x0.20 190 | |
155.32 / ОЭ-21 | 21x | 0.40 | 8.4 | Dry | 1.80 | 14.4 | ||
155.33 / ОЭ-40 | 40x | 0.65 | 4.59 | Dry | 0.61 | 12.4 | ЛОМО 40x0.65 190 | |
155.34 / ОЭ-95 | 95x | 1.0 | 2.0 | Oil | 0.41 | 12.5 | ||
e) epiobjectives for fluorescent microscopes | ||||||||
155.41 / ОЭ-9Л | 9x | 0.20 | 18.40 | Dry | 5.40 | 25.0 | Letter Л on the body | |
155.42 / ОЭ-21Л | 21x | 0.40 | 8.40 | Dry | 1.80 | 14.4 | ЛОМО Л 21x0.40 190 | Letter Л on the body |
155.43 / ОЭ-40Л | 40x | 0.65 | 4.59 | Dry | 0.61 | 12.4 | Letter Л on the body | |
II. ACHROMATS FOR INFINITY TUBEa) for metallographic microscopes, bright field | ||||||||
155.51 / OX-23 | - | 0.17 | 23.2 | Dry | 6.20 | 33 | ||
155.52 / OX-14 | - | 0.30 | 13.9 | Dry | 5.71 | 33 | ||
155.53 / OX-6 | - | 0.65 | 6.2 | Dry | 0.82 | 33 | ||
155.54 / OX-3 | - | 1.25 | 2.8 | Oil | 0.40 | 25 | МИ F-2.8x1.25 | |
OC-39 | - | 0.12 | 25.0 | Dry | 10.00 | 29 | ||
OC-40 | - | 0.30 | 13.9 | Dry | 5.71 | 29 | ||
OC-41 | - | 0.37 | 8.2 | Dry | 2.68 | 29 | F-8.2 0.37 | |
OC-42 | - | 0.50 | 4.3 | Dry | 0.74 | 29 | ЛОМО F-4.3 0.50 | |
b) epiobjectives for metallographic microscopes, bright and dark field | ||||||||
155.61 / ОЭ-23 | - | 0.17 | 23.2 | Dry | 5.4 | 31.5 | F=23.2 0.17 | |
155.62 / ОЭ-14 | - | 0.30 | 13.9 | Dry | 5.4 | 31.5 | ||
155.63 / ОЭ-8 | - | 0.37 | 8.2 | Dry | 2.6 | 31.5 | ||
155.64 / ОЭ-6 | - | 0.65 | 6.2 | Dry | 0.6 | 31.5 | ||
ОЭ-4 | - | 0,17 | 25 | Dry | 5.40 | 33 | ||
ОЭ-2 | - | 0.40 | 10 | Dry | 2.60 | 33 | ||
ОЭ-1 | - | 0.65 | 6.3 | Dry | 0.63 | 33 | ||
155.65 / ОЭ-3T | - | 1.00 | 2.8 | Oil | 0.6 | 31.5 | ||
III. PLANACHROMATS FOR INFINITY TUBEfor bright field | ||||||||
ОБП-40 | - | 0.10 | 40.6 | Dry | 23.0 | 45 | ||
? | - | 0.25 | 25 | Dry | ? | ? | Д=0 ПЛАН F=25 A=0.25 | Absent in old reference books |
ОПХ-3 | - | 0.65 | 6.3 | Dry | 0.6 | 45 | ПЛАН F=6.3 0.65 | |
for bright and dark field | ||||||||
ОЭ-5 | - | 0.65 | 6.3 | Dry | 0.69 | 45 | ПЛАН F=6.3 0.65 | |
IV. APOCHROMATS FOR INFINITY TUBE(for metallographic microscopes) | ||||||||
155.71 / OC-16 | - | 0.30 | 15.7 | Dry | 4.90 | 33 | АПОХР F-15.7 A-0.30 ТУБУС ∞ | |
155.72 / OC-8 | - | 0.65 | 8.4 | Dry | 0.82 | 33 | АПОХР F-8.37 A-0.65 ∞ | |
155.73 / OC-4 | - | 0.95 | 4.3 | Dry | 0.18 | 33 | АПОХР F-4.3 A-0.95 ∞ | |
155.74 / OC-3 | - | 1.30 | 2.8 | Dry | 0.18 | 25 | ||
155.75 / OC-3T | - | 1.00 | 2.8 | Dry | 0.53 | 25 | ЛОМО АПО-МИ F-2.8x1.0 | |
V. PLANAPOCHROMATS FOR INFINITY TUBE | ||||||||
ОПА-11 | - | 0.85 | 4.0 | Dry | 0.29 | 45 | ПЛАН-АПО F=4 0.85 | Spring loaded tip |
ОПА-12 | - | 1.25 | 2.5 | Oil | 0.25 | 45 | Spring loaded tip | |
ОПА-9 | - | 0.5 | 10.0 | Dry | 0.80 | 45 | ПЛАН-АПО F=10 0.50 | |
for bright and dark field (epiobjectives) | ||||||||
МИМ-9 | - | 0.25 | 25.4 | Dry | 4.4 | 45 | ||
МИМ-9 | - | 0.30 | 16.0 | Dry | 4.4 | 45 | ||
МИМ-9 | - | 0.65 | 6.3 | Dry | 4.4 | 45 | ||
VI. MIRROR-LENS OBJECTIVES FOR INFINITY TUBE | ||||||||
155.81 / ОБР-11 | - | 0.38 | 11.46 | Dry | 15.6 | 58 | 253.6-766.6nm | |
VII. PLANMONOCHROMATS FOR GELATINE EMULSION RESEARCH | ||||||||
155.91 / ОБМЖ-1.6 | - | 1.3 | 1.6 | Special immersion | up to 0.55 | |||
VIII. OTHER OBJECTIVES(I was unuable to find reliable info on them) | ||||||||
20x | 0.45 | Dry | ЛОМО CX 20x/0.45 Л ∞/0.17 | Stigmachromat, infinity tube, 0.17mm cover slip | ||||
40x | 0.65 | Dry | ЛОМО СХ 40x/0.65 Л ∞/0.17 | Stigmachromat, infinity tube, 0.17mm cover slip | ||||
ОШ-100Л-0-1 | 100x | 1.25 | Oil | ЛОМО Л ПЛАН-МИ 100 1.25 | ||||
- | 0.10 | 50 | Dry | Д=0 ПЛАН F=5- A=0.10 | ||||
- | 0.25 | 25 | Dry | ЛОМО ПЛАН F=25 0.25 | ||||
- | 0.30 | 16 | Dry | ЛОМО ПЛАН F=16 0.30 | ||||
- | 0.35 | 16 | Dry | ЛОМО Д=0 ПЛАН F=16 A=0.35 | ||||
18x | 0.30 | Dry | 18x0.30 ТУБУС ∞ | |||||
40x | 0.65 | Dry | QPA Achro 40 PH 0.65 160/0.17 |