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IRDK24 Dall-Kirkham f/6.5

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Price: € 77,400.00
(Price incl. German VAT excl. shipping)
Price: € 65,042.02
(Price excl. German VAT excl. shipping)

PlaneWave IRDK24 Dall-Kirkham f/6.5

This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared or ultra violet wavelengths. It is diffraction limited across a 20mm image circle at the focal plane. There are no refractive lens, only reflective components to the design. For IR application, reflectives coatings are a protected gold which give better than 98% reflectivity from .65 micron (650nm) to 5 micron (5000nm). This design is ideal for infrared astronomy or LIDAR applications. UV optimized coatings can also be used at an additional cost.

The DK is available in the three different apertures 24 ", 20", 28" and 12,5".

  • IRDK 24 Astrograph, 24 inch Infrared optimized with Fused Silica
  • a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared or ultra violet wavelengths
  • 8" Dovetail, focal length 3.962 mm (f/6.5)
  • Delta T Ready, 3,5" Hedrick Focuser and EFA Kit separately available
Fused Silica

Specifications

Optical Design
Dall-Kirkham
Aperture (mm)
24" (610 mm)
Focal Length
3.962 mm (155.98 inch)
Focal Ratio
f/6.5
Image Field
70 mm
Back Focus Distance
14.1" (358 mm) from Mounting Surface, 5.81" (148 mm) from Racked in Focuser
Central Obstruction
47% of the Primary Mirror Diameter
Substrate
Fused Silica
Optical length
55,98 inch (1.422 mm)
Optical Tube Weight
240 lbs (109 kg)
Mount
No mount (OTA only)
Manufacturer
Planewave
Manufacturer SKU
240120Q
SKU
1323224IQ
EAN Code
4047825035127

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