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Old 18-08-2020, 09:23 AM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,935
Sounds like the nosepiece adaptor you're using is adding enough space to be an issue.
What about removing the diagonal, and adding a small extension??
The spacing between the grating and the chip only needs to be around 30-40mm.
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