Comparison Table of GeoVISION™ Cameras    GeoVISION Home
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Dual-Scan micro, nano, Standard, Jr  Cameras nano, Standard with manual tilting bracket, Jr with manual tilting bracket 

 

Camera Specifications

JR

M6

JR

M6

Standard SSM1

Standard SSM1

nano

Dual-Scan micro
  Click to view a larger picture  Click to view a larger picture  Click to view a larger picture  Click to view a larger picture  nano SS color camera  Duel-Scan micro SS camera

Color or Black and White

Color

B/W

Color

B/W

Color

Color

Housing material

Plastic

CPVC

Plastic

CPVC

Stainless

Steel

Stainless

Steel

Stainless

Steel

Stainless

Steel

Lens window material

Glass

Glass

Sapphire

Sapphire

Sapphire

Sapphire

Maximum camera depth in feet/meters Maximum Cable length and Underwater limit

1000

/300

1000

/300

2000

/600

2000

/600

2000

/600

2000

/600

Weight in ounces and grams

5

141.7

5

141.7

12

340.2

12

340.2

12.8

362.87

3.5 lbs
1587.5

Lux rating at F2.0

.2

.01

.2

.01

.2

.2

Lens with glass element  (mm)

2.9

2.9

2.45

2.45

2.9

2.9 side
2.45 down

Optional lens available (mm)

3.6

3.6

3.6 or 2.9

3.6 or 2.9

3.6

No

Resolution Horizontal lines

550

420

550

420

550

550

Camera lights on/off circuitry

No

No

Yes

Yes

No

Yes
Maximum Operating Temperature  C 43 43 60 60 60 60
Maximum Operating Temperature  F 110 110 140 140 140 140
Minimum Operating Temperature C 0 0 -40 -40 -40 -40
Minimum Operating Temperature F 32 32 -40 -40 -40 -40

Camera Dimensions

JR

M6

JR

M6

Standard SSM1

Standard SSM1

nano

Dual-Scan micro

Diameter in inches and millimeters at the thickest point

1 ¾/

44.45

1 ¾ /

44.45

1 5/8

41.625

1 5/8

41.625

¾

19.05

1  1/8
28.6

Length in inches and millimeters

3 ½

88.9

3 ½

88.9

2 ¾

69.85

2 ¾

69.85

10

254

27
685.8

Minimum borehole diameter in inches for camera passage - This specification assumes some minor irregularities in the pipe or borehole

1 7/8

1 7/8

1 3/4

1 3/4

7/8

1 1/4

Viewing Specifications

JR

M6

JR

M6

Standard SSM1

Standard SSM1

nano

Dual-Scan micro

Minimum recommended borehole size in inches for good image

2

2

1 7/8

 1 7/8

1

1 1/4

Maximum borehole diameter in inches when viewing down under good conditions for good image

36 inches

60 inches

36 inches

60 inches

24 inches

36 inches
side
60 inches down

Maximum borehole diameter in feet when using GeoVISION™ supplemental Super Eight Light under good conditions for good image

15 feet

25 feet

15 feet

25 feet

10 feet

20 feet

Maximum borehole diameter in feet when viewing with motorized side looking mirror and GeoVISION™ the Super 8 Light under good conditions for good image

NA

NA

NA

NA

5 feet

5 feet

Maximum viewing distance in feet from camera when using Pan and tilt under good conditions for good image.

6 feet

15 feet

6 feet

10 feet

with 2.45 mm lens

NA

NA

Maximum viewing distance in feet from camera when using both the Pan and Tilt and the Adjustable Super 8 Light under good conditions for good image.

Using the 3.6 mm lens

20 feet

40 feet

20 feet

40 feet

NA

NA

Focal Length

JR

M6

JR

M6

Standard SSM1

Standard SSM1

nano

Dual-Scan micro
  Jr Color Camera Jr B/W Camera  Standard Color Camera  Standard B/W Camera  nano SS color camera Duel-Scan micro SS camera

Minimum distance in inches to subject for excellent focus

2

2

1.5

1.5

2

0.5 side
1.5 down

Maximum distance in inches to subject for excellent focus

36

36

60

60

36

36 side
60 down

Minimum distance in inches to subject for usable focus

1.5

1.5

1

1

1.5

0.25 side
1 down

Maximum distance in inches to subject for usable focus

Infinity

Infinity

Infinity

Infinity

Infinity

Infinity
Infinity

Lighting

JR

M6

JR

M6

Standard SSM1

Standard SSM1

nano

Dual-Scan micro

Number of High Brightness LED’s in camera

8

8

8

8

NA

NA

Number of High Brightness wide field LED’s in camera

NA

NA

NA

NA

6

21 **

Optional ring-light & out-front LED’s

No

No

No

No

No

No

System compatibility

JR

M6

JR

M6

Standard SSM1

Standard SSM1

nano

Dual-Scan micro

May be used with Deluxe winch

Yes

Yes

Yes

Yes

Yes

Yes

May be used with the Econo Heavy Duty winch

Yes

Yes

Yes

Yes

Yes

No

May Be used with the Econo Light Duty reel. NR = Not Recommended

Yes

Yes

Yes

NR

Yes

NR

Yes

NR

No

 

Notes

**Dual-Scan micro camera
The Dual-Scan micro camera has three sets of lights that can be turned on and off independently from switches on the control panel.
The upper recessed ring light has nine brightness LEDs that provide light for the side viewing camera as well as indirect light for both cameras.
The middle three LEDs provide direct light for the side viewing camera.
The lower recessed ring light has nine brightness LEDs that provide light for the down viewing camera as well as indirect light for both cameras.
The combination of three switchable sets of lights provides the best overall lighting of any borehole camera. This lighting system is especially effective in producing high quality videos that show shadow and texture. This Dual-Scan micro lighting is better than other systems in poor quality water due to the use of in LEDs that are placed a few inches away from the lens, providing indirect lighting and giving the user the flexibility to select different combinations of light sources.

 

Wide angle lens advantages and disadvantages

2.45 mm wide angle lens is very good at close up images. Distant images, 3 feet and greater, appear very small.

2.9 mm wide angle lens is good at close up images. Distant images, 3 feet and greater, appear small.

3.6 mm lens is best at images from 5 inches to infinity. Distant images appear larger with this lens than they do with other lenses. This is a special order lens available with all GeoVISION cameras.

The 3.6 mm lens is recommended for mines, caves, and very large boreholes.

 

Special features of GeoVISION cameras

The GeoVISION Standard stainless steel cameras have camera lights on/off circuitry for use with supplemental lights for improved visibility in poor quality water.

All GeoVISION cameras are interchangeable when used with the GeoVISION™ Deluxe system

All GeoVISION cameras have over voltage and heat protection.

The GeoVISION stainless steel cameras have recessed attachment points allowing the camera to fit in smaller boreholes.

The GeoVISION black and white cameras have a lux rating of .01 at F2.  This ultra low light feature means that even in very low light these cameras will produce a good image where other borehole cameras under the same lighting conditions will not have a usable image.

 

Recommendations for large boreholes, mines, caves, tunnels, tanks, pipes, caissons, and other voids

Any combination of these items listed below will help get a better image at greater distances:

1.  Black and white ultra low light camera

2.  Motorized pan and tilt option for depths to 2000 feet or the manual pan and tilt that is standard with all JR and Standard cameras for use at depths less than 200 feet.  The 200 foot depth is a mater of personal choice. The manual system becomes more difficult to operate at greater depths.

3.  Supplemental lighting

 

Factors that determine the quality of an image from a borehole camera

  1. Water clarity
  2. Distance to subject
  3. Amount of light and lux rating of camera.  The GeoVISION black and white cameras are all ultra low light and are the best borehole cameras for viewing distant objects.
  4. Location of light in relation to camera and subject. For example suspended particles may reflect light from on camera lights directly into the camera lens.  Supplemental lights off camera reduce this reflection and provide texture to the subject so that it can be comprehended better.
  5. Stability and location of camera in borehole. This is best achieved by the use of adjustable centralizers.
  6. Angle of view between camera and subject.  Tilting cameras provide by far the most options by allowing the operator to view the subject at different angles
  7. Type of lens - A wide angle lens such as the 2.45 allows a better view of the borehole when viewing down and provides a better view of close subjects. The 3.6 lens provides a larger image of distant objects but is not as good when viewing close objects.

 

For product information, sales, brochures, demonstration DVD, and prices you may:

  • Call 800-255-1353 toll free from the US and Canada, elsewhere 802-626-5302
  • Email: jeff@geovision.org