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Calcium Orange

Calcium Orange (Ex-Max 547 nm/Em-Max 571 nm)

Calcium Orange is a calcium indicator with an excitation peak at 547 nm and an emission peak at 571 nm.

Excitation & emission spectra

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Key facts

Excitation maximum
547 nm
Emission maximum
571 nm
Optimal laser line
532
Optimal filter
585/42

Calcium Orange has an excitation maximum at 547 nm and an emission maximum at 571 nm, a Stokes shift of 24 nm. It is optimally excited by the 532 laser line.

Frequently asked questions

What is Calcium Orange?
Calcium Orange is a calcium indicator with an excitation peak at 547 nm and an emission peak at 571 nm.
What laser excites Calcium Orange?
Calcium Orange is optimally excited by the 532 laser line. Its excitation maximum is 547 nm.
What filter should I use to detect Calcium Orange?
A 585/42 filter captures the peak of the Calcium Orange emission near 571 nm with minimal spillover.