DADOS: Baader Blaze Reflection Gratings 900 L/mm

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DADOS: Baader Blaze Reflection Gratings 900 L/mm

# 2458556

€ 253.00 Price excl. German VAT tax (19%): € 212.61

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Blaze Reflection Gratings 900 L/mm
cemented onto Tilting grating holder
For high resolution observations where the 900 and 1200 gratings are used, Dados (by construction) is expected to provide the best optical performances in a short spectral range (30 nm).

Small imperfections are within tolerance

The small dots or supposed scratches shown here (please click on image to enlarge) are not dirt but minimal imperfections in the master grating that are within tolerance and do not degrade the image. An exchange due to this purely cosmetic defect is therefore not possible

Important note: Our Blaze Reflection Gratings with 200, 900 and 1200 lines/mm are only available with proven purchase of a DADOS Spectrograph and have to be calibrated at our premises, see below. Please contact us if you're interested.

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Note on adjustment of DADOS Reflection Gratings

Each DADOS spectroscopic grating (especially the 1200 line grating) needs to be precisely calibrated individually for each DADOS-spectrograph. If you order a DADOS together with another of our reflection gratings, this service will be done by us before shipping your order. If you already own a DADOS, we must ask you to return your DADOS each time when you order another grating, apart from the standard 200 line grating. Gratings can be exchanged by yourself later on, if you choose to change the grating resolution. But the initial calibration of the grating in relation to the mechanical body of the DADOS must be one here one time.
You will only pay for the cost of the grating and the transportation. We will do the calibration work free of charge for the Baader 900 and 1200 line gratings. Please announce your order planning well in advance so that we can plan it in production and provide a comfortable time slot.

Specifications