OTL38-equivalent resolution target (Lung)


USAF 1951 Resolution target:

  • Group 0 through Group 7
  • 1.5 mm thick low-reflective glass
  • 1000 nM OTL38-equivalent material backing
    • µₐ = 0.021 mm⁻¹ at 800 nm
    • µ′ₛ = 0.27 mm⁻¹ at 800 nm
  • Peak Excitation/Emission: ~775 nm / 790 nm
    • Also similar to IRDye-800 CW
  • Dimensions: 25mm x 25mm x 20mm
SKU: RRT-O38-LU02-QUEL02 Categories: , ,


This reference target is an ideal solution understand the resolution or depth of field of your fluorescence imaging system. This target uses a negative USAF1951 chart with progressively smaller line-pairs and 1000 nM OTL38 (pafolacianine) equivalent (Peak excitation/emission: ~775:790 nm) material to provide an estimate of the imaging system’s optimal resolution to determine the resolvable feature size in fluorescence mode. A contrast transfer function can be estimated by analyzing images of this target.

1: CYTALUX is a registered trademark of On Target Laboratories, Inc
2: IRDye is a registered trademark of LI-COR Biosciences – U.S.
The O38 product line provides an equivalent fluorescent marker for the referenced contrast agents,
and is not affiliated or endorsed by the listed companies.