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Images and Exposure Times with TOFRA 030-CW LED Light Source

Tests were performed on Olympus BX51 microscope with 10X UPlanFL 0.3NA, 20X UPlanFL 0.5NA, and 40X UPlanFL 0.75NA objectives.

The light source was set to full intensity. Focusing of the light source was done by focusing the LED chip on the specimen without objective in the optical path.  The specimen (fluorescent plastic) was pre-focused with a 10X objective.

Camera - Basler color camera scA 1400-17gc, chip size 1390*1038 pixels, pixel size 6.45 μm * 6.45 μm, in 8-bit mode,  Gain 600.  Images in the table are full camera frames scaled down by a factor of 2.  Exposure time was chosen to slightly saturate the image.  No digital enhancement was done.

Specimens: Molecular Probes FluoCells Prepared Slide #1- bovine pulmonary artery endothelial (BPAE) cells with MitoTracker Red CMXRos, Alexa Fluor 488 Phalloidin, and DAPI and Spherotech Fluorescent Particle Slide, Ultra Rainbow, 5 Intensities, 5.05 μm, Cat. No. FPS-5057-UR5.

 
FluoCells Slide with Chroma 39002 - AT - EGFP/FITC/Cy2/AlexaFluor 488 filter cube

FluoCells-1-XHP35-FITC-10X-scA1400-17gc-G600-E1200ms

Objective 10X. Exposure time 1200 ms.

FluoCells-1-XHP35-FITC-20X-scA1400-17gc-G600-E800ms

Objective 20X.  Exposure time 800 ms.

FluoCells Slide with Chroma 39010 - AT - Texas Red/mCherry/AlexaFluor 594 filter cube
FluoCells-1-XHP35-TxRed-10X-scA1400-17gc-G600-E144ms FluoCells-1-XHP35-TxRed-20X-scA1400-17gc-G600-E80ms
Objective 10X. Exposure time 140 ms. Objective 20X.  Exposure time 80 ms.
Bead Slide with Chroma 39002 - AT - EGFP/FITC/Cy2/AlexaFluor 488 filter cube
Beads-XHP35-FITC-20X-scA1400-17gc-G600-E80ms
Objective 20X.  Exposure time 80 ms.
Beads-XHP35-FITC-40X-scA1400-17gc-G600-E57ms
Objective 40X.  Exposure time 57 ms.
Bead Slide with Chroma 39010 - AT - Texas Red/mCherry/AlexaFluor 594 filter cube
Beads-XHP35-TxRed-20X-scA1400-17gc-G600-E2ms
Objective 20X.  Exposure time 2 ms.
Beads-XHP35-TxRed-40X-scA1400-17gc-G600-E2ms
Objective 40X.  Exposure time 2 ms.