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Filters > Planetary & Comet Filters > Optolong > Optolong Filters Venus U-Filter 2''
Product no.: 59436

Filters Venus U-Filter 2''

$ 274.00 incl. VAT, plus shipping costs
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Express shipment possible for delivery tomorrow, 22.11.2024!

Delivery possible before Christmas (European destinations) - when you order by 18.12.!
Right of return up to January 31 2025!


Product description

Optolong Venus-U Filter

The Venus-U filter makes it possible to obtain photographs, CCD or video images in the UV-A (320-400 nm) and observe Venus’ cloud structures.

Use with monochrome CCD cameras and you need to remove the cover glass of sensor and internal UV-IR blocker in order to pass UV light. The same holds true for mono DSLRs that its built-in low pass filter needs to be removed. What’s more, you need a special UV lens together with camera body. All-reflecting telescopes like Newtonians and RCs (without corrector) will also work if the reflective layers are made of aluminum. The sensor of CCD or CMOS cameras is capable of detecting light in the 350-1100 nm range.

WARNING: The filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.

Coating Parameter

  • Multi-layers anti-reflection coating
  • Non-cementing optical substrate coating
  • Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.
  • Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and optical density of off-band.

Please note that this filter must never be used as the only solar filter!

Specifications

Capacity


Coating of optical system
multiple
Frame
2"
Transmission
80
Surface accuracy
1/4

General


Material
Schott glass
Type
Filters
Type of build
Planetary & Comet Filters

Area of application


Useful for photographs
yes
Venus
yes
Visually useful
no
Optolong Filters Venus U-Filter 2''

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