Collimators
203/1800 Achromatic Lens in Cell
All achromatic lenses in cell are designed by TMB-Optical, and are optimized for visual purposes. All optics are ordered with the specifications of 1/6 wavefront P.T.V., and minimum 96% strehl ratio. On request, an interferometric test report will be included for a small additional amount. All surfaces are fully multi-coated with peak transmission at 532 nm. The lens cell has a 3 set, push-pull, screw flange.
Technical data:
| Aperture | 203 mm |
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| Focal Length | 1800 mm |
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| F/ratio | F/8.9 |
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| Glass sort | Ohara / Japan BK7 and F4 |
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| Optical Design | Doublet air-spaced Fraunhofer achromat |
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| Multicoating | yes |
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| Coating | Broadband |
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Prices on www.apm-telescopes.de!
Autocollimation Flat Mirror
We offer Autocollimation Flat Mirrors for testing purposes in sizes up to 1.3 meters diameter. All mirrors are from LOMO or Aries.