Phase Contrast
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 Carl Zeiss Neofluar Ph2 16x 16 040 160 microscope objective Phase contrast $164.99 Time Remaining: 1h 50m Buy It Now for only: $199.99 |
 Microscope Phase Contrast Condenser Camera CCD Adapter Tube Nikon Labomed Wesco $99.00 Time Remaining: 29d 3h 17m Buy It Now for only: $99.00 |
 Carl Zeiss Neofluar Ph2 40x 40 075 160 017 microscope objective Phase contrast $199.99 Time Remaining: 1h 39m Buy It Now for only: $249.99 |
 PZO Phase Contrast Microscopy set condenser K3Ph + objective + $325.00 Time Remaining: 11d 12h 9m Buy It Now for only: $325.00 |
 Carl Zeiss Phako Phaco Phase contrast 0cular eyepiece microscope objective $149.99 Time Remaining: 4h 21m Buy It Now for only: $199.99 |
 Zeiss VZ Darkfield Brightfield Phase Contrast Condenser w achr apl 14 NA Lens $149.99 Time Remaining: 5d 19h 46m |
 Nikon Microscope Phase Contrast Condenser 085 and Mount $405.00 Time Remaining: 29d 23h 31m Buy It Now for only: $405.00 |
 Wild Heerbrugg Phase Contrast Condenser microscope A 09 RARE $214.99 (1 Bid) Time Remaining: 5h 23m |
 Leitz Laborlux 12 Phase Contrast Microscope $1,249.00 Time Remaining: 29d 7h 55m Buy It Now for only: $1,249.00 |
 Zeiss Photo Microscope Photomicroscope Tube Head Optovar 47 16 45 Phase Contrast $0.01 Time Remaining: 4d 21h 47m |
 Olympus microscope phase contrast condenser 125 Abbe iris 0 10 20 40 100x $47.00 (3 Bids) Time Remaining: 4d 10h 22m |
 UNICO 40X Semi plan Phase Contrast Objective Na 065 B6 2423 $159.99 Time Remaining: 29d 5h 40m Buy It Now for only: $159.99 |
 MICROSCOPE BRIGHT DARK FIELD PHASE CONTRAST KIT $698.00 Time Remaining: 1d 11m Buy It Now for only: $768.00 |
 Bausch Lomb Phase Contrast Set 31 58 88 01 $500.00 Time Remaining: 3d 21h 13m Buy It Now for only: $500.00 |
 Carl Zeiss Phase turret Contrast Condenser Phako IV Z7 Inko achr apl 14 032 $899.99 Time Remaining: 5h 36m Buy It Now for only: $999.99 |
 Carl Zeiss Phase Contrast Condenser with achr apl 14 032 NA Lens RARE $249.99 Time Remaining: 5h 20m Buy It Now for only: $324.99 |
 PHASE CONTRAST KIT FOR COMPOUND MICROSCOPES $359.00 Time Remaining: 20d 1h 19m Buy It Now for only: $359.00 |
 Turret Phase Contrast Condenser with Plan Objectives for Compound Microscope $679.90 Time Remaining: 23h 46m Buy It Now for only: $755.00 |
 OLYMPUS MICROSCOPE PHASE CONTRAST CX 31 TRINOCULAR WITH 10X + 40X PHASE OBJS $1,400.00 Time Remaining: 4h 42m Buy It Now for only: $1,400.00 |
 Carl Zeiss F LD F LD 32x 32 040 160 1 Ph1 Phase contrast microscope objective $189.99 Time Remaining: 8h 8m Buy It Now for only: $224.99 |
 Biological Phase Contrast Binocular Plan Microscope 40X 1600X Reversed Nosepiece $1,119.90 Time Remaining: 55m Buy It Now for only: $1,244.00 |
 Nikon Phase Contrast Trinocular Microscope $1,850.00 Time Remaining: 3d 21h 13m Buy It Now for only: $1,850.00 |
 Phase Contrast Brightfield On one Kit with Objective Lens Set for Microscopes $579.90 Time Remaining: 2d 46m Buy It Now for only: $644.00 |
 CARL ZEISS Microscope Phase Contrast Wooden Box $32.99 Time Remaining: 2d 2h 45m |
 MICROSCOPE BRIGHT DARK FIELD PHASE CONTRAST KIT $698.00 Time Remaining: 17d 13h 4m Buy It Now for only: $698.00 |
 Carl Zeiss Phase Contrast Condenser with achr apl 14 $31.00 (2 Bids) Time Remaining: 7d 31m |
 Bausch Lomb Microscope Phase Contrast Set NEW $325.00 Time Remaining: 3d 21h 8m Buy It Now for only: $325.00 |
 PHASE CONTRAST INVERTED TISSUE CULTURE MICROSCOPE $3,499.00 Time Remaining: 21h 24m Buy It Now for only: $3,849.00 |
 New Binocular Microscope 40x 2000x w Phase Contrast $939.67 Time Remaining: 5h 17m Buy It Now for only: $1,033.64 |
 Phase Contrast BF Compound Microscope w 20MP Camera $799.98 Time Remaining: 18d 17h 49m Buy It Now for only: $799.98 |
 Phase Contrast Attachment Kit for Compound Microscopes with Objectives Filter $319.90 Time Remaining: 5d 21h 46m Buy It Now for only: $356.00 |
 Disc Phase Contrast Kit w BF Condenser for Microscopes $399.99 Time Remaining: 3d 17m Buy It Now for only: $399.99 |
 Leitz Wetzlar EF 10x 10 025 160 PHACO 1 Phase contrast microscope objective $114.99 Time Remaining: 4d 7h 31m Buy It Now for only: $134.99 |
 Live Blood Analysis Phase Contrast Siedentopf Microscope+2MP USB Digital Camera $979.90 Time Remaining: 21h 45m Buy It Now for only: $1,088.00 |
 Rotatable Phase Contrast Compound Microscope 40x 1600x $528.88 Time Remaining: 18d 17h 48m Buy It Now for only: $528.88 |
 Phase Contrast Microscope with Turret Condenser and 20MP Camera Run on Windows7 $899.90 Time Remaining: 2d 2h 45m Buy It Now for only: $999.00 |
 Olympus Phase Contrast with Wood Case $399.00 Time Remaining: 2d 5h 16m Buy It Now for only: $399.00 |
 PHASE CONTRAST BINOCULAR BIOLOGICAL COMPOUND MICROSCOPE $539.00 Time Remaining: 2d 2h 22m Buy It Now for only: $593.00 |
 Leitz Wetzlar EF L 20x 20 032 160 PHACO 1 Phase contrast microscope objective $149.99 Time Remaining: 4d 7h 32m Buy It Now for only: $199.99 |
 LOMO Phase Contrast Microscopy set KF 4 w objs cond $375.00 Time Remaining: 25d 23h 55m Buy It Now for only: $375.00 |
 9MP Digital Compound Darkfield Brightfield Phase Contrast Siedentopf Microscope $1,119.90 Time Remaining: 1d 21h 46m Buy It Now for only: $1,244.00 |
 Phase Contrast 40x 1600x Trinocular Compound Microscope for Waste Water Research $549.90 Time Remaining: 1d 1h 46m Buy It Now for only: $611.00 |
 PHASE CONTRAST BINOCULAR BIOLOGICAL COMPOUND MICROSCOPE $539.00 Time Remaining: 17d 8h 12m Buy It Now for only: $539.00 |
 Carl Zeiss 40x 40 065 160 017 Ph2 Phase contrast microscope objective $114.99 Time Remaining: 4d 7h 33m Buy It Now for only: $134.99 |
 Vickers Phase Contrast Photoplan Microscope $3,500.00 Time Remaining: 3d 21h 13m Buy It Now for only: $3,500.00 |
 40x 2000x Phase Contrast 3MP USB Binocular Microscope + Phase Plan Objectives $1,029.90 Time Remaining: 2d 4h 46m Buy It Now for only: $1,144.00 |
 DARKFIELD PHASE CONTRAST COMPOUND MICROSCOPE 40X 1600X $1,150.00 Time Remaining: 2d 2h 44m Buy It Now for only: $1,265.00 |
 Zeiss Phase Contrast Condenser part 4890994 good cond $350.00 Time Remaining: 1d 8h 37m Buy It Now for only: $350.00 |
 Plan Trinocular Microscope with 2MP Camera + Turret Phase Contrast Condenser $999.90 Time Remaining: 4d 1h 45m Buy It Now for only: $1,110.00 |
 LOMO Phase Contrast Microscopy condenser KF 4 $159.00 Time Remaining: 16d 12h 46m Buy It Now for only: $159.00 |
 Binocular Lab Research Turret Phase Contrast Microscope 40x 1600x $789.90 Time Remaining: 1d 20h 46m Buy It Now for only: $877.00 |
 New Trinocular Microscope 40x 1000x w Phase Contrast $949.34 Time Remaining: 2d 19h 56m |
 Bausch and Lomb PhotoZoom 31 29 14 Inverted Phase Contrast Microscope 4 10 20 $899.99 Time Remaining: 16d 14m Buy It Now for only: $899.99 |
 40x 1600x PLAN Biological Microscope with 5MP USB Camera Phase Contrast Kit $1,022.52 Time Remaining: 2d 3h 45m Buy It Now for only: $1,135.69 |
 OLYMPUS BHS PHASE CONTRAST MICROSCOPE $2,295.00 Time Remaining: 4d 21h 31m Buy It Now for only: $2,295.00 |
 PLAN 40X 1600X Phase Contrast Microscope+2MP USB Camera and Siedentopf Head $963.52 Time Remaining: 2d 5h 46m Buy It Now for only: $1,069.81 |
 InvertFocus Inverted Microscope with LWD Plan Phase Contrast Objectives New $1,200.00 Time Remaining: 2d 4h 28m Buy It Now for only: $1,320.00 |
 OLYMPUS PHASE CONTRAST G51208 $299.99 Time Remaining: 24d 7h 30m Buy It Now for only: $299.99 |
 PHASE CONTRAST INVERTED MICROSCOPE + 9M DIGITAL CAMERA $3,999.00 Time Remaining: 5d 2h 42m Buy It Now for only: $4,399.00 |
 Olympus microscope Fluorescence phase contrast condenser $180.00 Time Remaining: 19d 19h 34m Buy It Now for only: $180.00 |
 NIKON Phase Contrast with Objectives $200.00 Time Remaining: 8d 16h 39m |
 40X 2000X LED Binocular Compound Microscope + Complete Phase Contrast Kit $539.00 Time Remaining: 4d 22h 13m Buy It Now for only: $593.00 |
 Wild M20 Microscope Part Phase Contrast Condenser 18798 A09 $214.99 Time Remaining: 29d 3h 27m Buy It Now for only: $214.99 |
 Biological Phase contrast with 4 objectives condenser telescopic eye piece $485.30 Time Remaining: 4d 17h 30m Buy It Now for only: $535.90 |
 40X 1600X PHASE CONTRAST COMPOUND MICROSCOPE $998.00 Time Remaining: 5d 4m Buy It Now for only: $1,098.00 |
 AMERICAN OPTICAL phase contrast condenser CAT 1246 $205.00 Time Remaining: 24d 8h 42m Buy It Now for only: $205.00 |
 New Trinocular Microscope 40x 2000x w Phase Contrast $999.89 Time Remaining: 5d 7h 38m |
 Olympus NIC Phase contrast LB condenser $1,799.00 Time Remaining: 7d 13h 10m Buy It Now for only: $1,799.00 |
 40x 1600x Binocular Compound Microscope with turret Phase Contrast Condenser $889.90 Time Remaining: 4d 19h 46m Buy It Now for only: $988.00 |
 New Binocular Microscope 40x 1000x w Phase Contrast $899.78 Time Remaining: 5d 2h 58m |
 LOMO Phase Contrast Microscopy set KF 4 objective + $325.00 Time Remaining: 13d 13h 48m Buy It Now for only: $325.00 |
 TURRET PHASE CONTRAST BINOCULAR COMPOUND MICROSCOPE $979.00 Time Remaining: 6d 5h 43m Buy It Now for only: $1,078.00 |
 Olympus Phase Contrast LWCD 055 $350.00 Time Remaining: 8d 12h 38m Buy It Now for only: $350.00 |
 40X 1600X PLAN Compound Microscope with 3MP USB Camera Phase Contrast Kit $983.19 Time Remaining: 5d 4h 46m Buy It Now for only: $1,091.45 |
 40x 2000x Phase Contrast Digital Biological Microscope with 30MP USB Camera $689.90 Time Remaining: 5d 2h 46m Buy It Now for only: $766.00 |
 Olympus ULWCD 030 phase contrast condenser $499.00 Time Remaining: 10d 14h 49m Buy It Now for only: $499.00 |
 Live Blood Analysis Phase Contrast Brightfield Digital Microscope+9MP USB Camera $1,379.90 Time Remaining: 5d 22h 46m Buy It Now for only: $1,532.00 |
 Olympus microscope Phase contrast annulus $80.00 Time Remaining: 1d 19h 6m Buy It Now for only: $80.00 |
 Blood Sperm Analysis Live Phase Contrast Microscope w USB Camera $1,199.00 Time Remaining: 5d 21h 49m |
 3MP USB Camera Built in Biological Microscope 40x 2000x with Phase Contrast Kit $929.90 Time Remaining: 6d 21h 55m Buy It Now for only: $1,033.00 |
 Leitz Heine Phase Contrast Microsocpe Manual on CD $19.95 Time Remaining: 9d 20h 59m Buy It Now for only: $19.95 |
 New Binocular Microscope 40x 1600x w Phase Contrast $934.79 Time Remaining: 5d 23h 27m |
 Phase Contrast Binocular Compound Microscope 40x 2000x with 30MP USB Camera $929.90 Time Remaining: 5d 19h 55m Buy It Now for only: $1,033.00 |
 Olympus IM Phase Contrast Inverted Microscope $1,395.00 Time Remaining: 14d 6h 49m Buy It Now for only: $1,395.00 |
 Phase Contrast Binocular Microscope with 20M integrated camera $849.00 Time Remaining: 6d 14m |
 Olympus 10x Phase contrast annulus $129.96 Time Remaining: 8d 5h 21m Buy It Now for only: $129.96 |
 Professional Digital PLAN Phase Contrast Compound Microscope with 9MP USB Camera $1,101.18 Time Remaining: 5d 22h 45m Buy It Now for only: $1,223.21 |
 1600X Phase Contrast Binocular Biological Siedentopf 9MP Digital PLAN Microscope $1,139.90 Time Remaining: 6d 21h 56m Buy It Now for only: $1,266.00 |
 Phase Contrast Attachment Kit for Compound Microscopes $329.99 Time Remaining: 17d 20h 13m Buy It Now for only: $329.99 |
 40x 1600x Digital PLAN Phase Contrast Compound Microscope with 5MP USB Camera $1,002.85 Time Remaining: 6d 3h 55m Buy It Now for only: $1,114.06 |
 NIKON MICROSCOPE PHASE CONTRAST CONDENSER 40X 20X 10X 04 GOOD C $199.00 Time Remaining: 27d 8h 26m Buy It Now for only: $199.00 |
 Nikon Labophot 2 Phase Contrast Microscope w All Camera Options Very Nice $2,450.00 Time Remaining: 8d 7h 15m Buy It Now for only: $2,750.00 |
 Nikon Phase Contrast Microscope w All Camera Options Very Nice $1,450.00 Time Remaining: 8d 7h 16m Buy It Now for only: $1,650.00 |
 TRINOCULAR TURRET PHASE CONTRAST COMPOUND MICROSCOPE $1,100.00 Time Remaining: 17d 6h 25m Buy It Now for only: $1,100.00 |
 Nikon Labophot Phase Contrast Microscope w All Camera Options Very Nice $1,950.00 Time Remaining: 8d 7h 15m Buy It Now for only: $2,250.00 |
 Olympus A20x 040 160 017 NH phase contrast objective $249.00 Time Remaining: 1d 11h 59m Buy It Now for only: $249.00 |
 New Trinocular Microscope 40x 1600x w Phase Contrast $997.44 Time Remaining: 3d 22h 18m |
 New Binocular Microscope 40x 2000x w Phase Contrast $939.67 Time Remaining: 6d 23h 27m |
 Olympus Phase Contrast Microscope part 209563 $283.65 Time Remaining: 9d 5m Buy It Now for only: $283.65 |
 Medical Research Inverted Phase Contrast Microscope w 13MPixel USB Camera $699.00 Time Remaining: 9d 1h 54m Buy It Now for only: $1,499.00 |
Phase Contrast
Advantages of Phase Contrast Microscopes
You have seen many Biology books to know that the microscope have helped us catch a glimpse of organisms, cellular matters, and parts of our body that cannot be seen by the naked eye. The microscope, after all, can magnify objects through the use of specialized lens and light. But what about objects that are transparent? How have scientists have come up with images of organisms that do not absorb light? How about those that are naturally colorless? The answer lies in a microscope called phase contrast.
Introduction to Phase Contrast Microscopy
Our eyes can only see colors of the visible spectrum and the differing intensities of light. Objects that absorb light are easy for us to observe because of these biological capability. Even if the objects are very tiny, it's still possible for us to see them if we use a microscope. However, transparent and colorless objects, such as bacteria, sperm tails, flagella, and some parts of the cell, cannot be seen clearly under typical light microscopes. This is because light travels through these objects in a way that our naked eye cannot detect. Light passes through these specimens, called phase objects, slower and they are shifted. This change in phase cannot be detected by our eyes. This is why it would be impossible to study these objects clearly.
In the 1930s, a Dutch scientist named Frits Zernike developed the phase contrast method. He observed that it is possible to increase change in phase or shift in these transparent objects by half a wavelength. This was done by the use of rings etched onto plates of glass. The method resulted in patterns of interference. These patterns, in turn, made the details of the phase objects darker than the background. The contrast is increased and they become visible to the naked eye.
Phase Contrast Microscopy Today
Zernike received a Nobel price for inventing the method. It was a well-deserved accolade because he has revolutionized the way microscopy works today. Because of his invention, we have been able to properly observe objects that would otherwise have been impossible to analyze under a normal light microscope.
If it weren't for this method, for example, we would never have known how cell division works. Without phase contrast microscopes, transparent and colorless objects are stained so that they can be observed under the microscope. This staining method makes them absorb color but it alters their components. It can kill some phase objects, too. Incidentally, killing phase objects also makes them more visible but it becomes impossible to observe their processes. Killing them often defeats the purpose of observation. With this technique, it is possible to observe living cells and how they divide.
Used with other modern devices, this kind of microscope has even made it possible to see the internal structures of these phase objects. Post-processing and other enhancement devices can now make us see what goes on inside transparent and colorless organisms. They used to be beyond the reach of technology but a genius changed that. Science and mankind has definitely benefited from this incredible invention.
CanScope - complete solution for all your microscopy needs.
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About the Author
Are you interested in knowing how
phase contrast
really works? If you want to buy the components needed to make a phase contrast microscope, visit CanScope.ca. They also have other components, such as
infinity corrected
objectives,
fluorescent filter
, and many others.
in phase contrast microscopy, what is Ph1 and Ph2?
For phase contrast to work, you have to match the phase rings with their matching objective lenses. Ph1 and Ph2 are simply different sized rings. On our Nikon Eclipse TS100 microscope, Ph2 is for 10x and 20x, while Ph2 is for 40x and 60x
Stentor polymorphus, phase contrast