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IDAS NBZ-II DRT:
The NBZ-II DRT uses specially selected NBZ-II substrates so it can be used for high-speed optical systems:
F1.9 to F4.0 for optical systems with central obstruction
F1.4 to F3.3 for high speed refractors and camera lens
Size
Suffix
Description
Availability
DRT

for Canon EF-EOSR drop-in mount adapter & Meike MK-EFTR-C (EF-R) & MK-EFTE-C (EF-E) drop-in mount adapters as well as for Kolari EF-EOS R Drop-In Filter Mount Adapter For Canon And RED RF cameras.
User Manual for DRT frames at: https://idas.uno/space/en/support/DRT-manual-en.pdf
available

 

 

The transmittance curves of the IDAS NBZ-II DRT differes from those of the fundamental NBZ-II susbstrate. Any other specifications remain the same as of the fundamental NBZ-II substrate.


Simulations: