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Features:

The spider hub and holder assemblies are made of carbon composite, which significantly reduces the weight. The spider vanes are steel for maximum strength and keeps the thickness to a minimum. Our 3-vane spider design has 1/4 less total diffraction compared to 4-vane models. Bright field objects will appear to have six diffraction spikes spaced at 60° intervals, but the spikes are half as bright compared to a 4-vane spider (see diffraction comparison). The 3-vane mounts feature the same simplified collimation as the 4-vane models. Made in the U.S.A.

3-vane secondary mounts for common English sized mirrors

Spiders are custom-made for your tube's inside diameter. Provide the information described on the ordering information page.

Don't see your mirror size? Contact us and we can supply a custom-sized holder for no extra charge. No more gluing mirrors!

Secondary size (inch)

SKU

Price

Notes

0.75"

0753VALL

$105.00

For up to 9.5" tube (or upper cage) inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

1.00"

1003VALL

$105.00

For up to 9.5" tube (or upper cage) inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

1.25"

1253VALL

$105.00

For up to 9.5" tube (or upper cage) inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

1.30"

1303VALL

$105.00

For up to 9.5" tube (or upper cage) inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

1.50"

1503VALL

$110.00

For up to 12" tube (or upper cage) inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

1.52"

1523VALL

$110.00

For up to 12" tube (or upper cage) inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

1.83"

1833VALL

$116.00

For up to 18.0" tube (or upper cage) inside diameter. One attachment lug per vane.

2.14"

2143VALL

$118.00

For up to 18.0" tube (or upper cage) inside diameter. One attachment lug per vane.

2.50"

2503V

$130.00

For up to 18.0" tube (or upper cage) inside diameter. One attachment lug per vane.

2.60"

2603VALL

$132.00

For up to 22.0" tube (or upper cage) inside diameter. Two attachment lugs per vane.

3.10"

3103VALL

$140.00

For up to 24.0" tube (or upper cage) inside diameter. Two attachment lugs per vane.

3-vane secondary mounts for common imported mirror sizes

Secondary size (mm)

SKU

Price

Notes

28.0

G02803V

$95.00

For up to 240 mm tube inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

31.0

G03103V

$95.00

For up to 240 mm tube inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

35.0

G03503V

$105.00

For up to 240 mm tube inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

43.0

G04303V

$112.00

For up to 240 mm tube inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

46.5

G04653V

$116.00

For up to 240 mm tube inside diameter. One attachment lug per vane. Anti-dew heater and finger collimation screws not available for this size.

50.0

G05003V

$118.00

For up to 450 mm tube inside diameter. One attachment lug per vane.

62.5

G06253V

$122.00

For up to 550 mm tube inside diameter. One attachment lug per vane.

63.0

G06303V

$122.00

For up to 550 mm tube inside diameter. One attachment lug per vane.

68.0

G06803V

$138.00

For up to 550 mm tube inside diameter. Two attachment lugs per vane.

70.0

G07003V

$138.00

For up to 550 mm tube inside diameter. Two attachment lugs per vane.

74.0

G07403V

$140.00

For up to 600 mm tube inside diameter. Two attachment lugs per vane.

80.0

G08003V

$140.00

For up to 600 mm tube inside diameter. Two attachment lugs per vane.


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