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Product no.: 10834

Telecentric TZ-4 2"

$ 443.00 incl. VAT plus shipping costs
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  • 2" plug connection and T2 thread on both sides
  • Aplanatic without image field curvature, 4x focal length extension
  • Specially calculated for H-alpha with 99% Strehl ratio

Product description

  • with 2" connector and T2 thread at both ends
  • aplanatic, with either 2X or 4X focal length extension and free of field curvature
  • specially designed and produced for the H-alpha wavelength, with 0.99 Strehl ratio (99% relative intensity at 656.3nm). No other telecentric lens system achieves such a high imaging performance

Telecentric systems are mainly used in H-alpha filters for solar observation, in which the 1/100 lambda plane-parallel Etalon in the H-alpha filter requires a perfectly parallelised beam path across the entire image.

Specifications

Capacity


Magnification factor
4
Connection (to the telescope)
2"
Connector (other end)
T2
Free transmission (mm)
36
Backfocus (mm)
97

General


Type
Barlow & Erecting Lenses
Type of build
Telecentric
Outer material
Aluminium
Weight (g)
310

Product safety

Manufacturer: Baader Planetarium GmbH, Zur Sternwarte, 82291 Mammendorf, DE, www.baader-planetarium.de
Baader Telecentric TZ-4 2"
Baader Telecentric TZ-4 2"

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