Frequently Asked Questions

The specifications of the Photometrics QV2 include wavelength sensitivity of 400 to 750 nm, efficiency per image of 70 to 92%, operation temperature of 10 to 37˚C, detector attachment of C-mount (male), front attachment of C-mount (female), external mounting option of ¼-20 tapped hole on back of unit, dimensions of 2.5” diameter x 7.5” height, weight of 2.6 lbs, and the ability to use emission/barrier, neutral density, and polarization filters with a maximum diameter of 1” (25.4-mm) and maximum thickness of 7-mm.

The Photometrics QV2 is suitable for a variety of applications, including fluorescence resonance energy transfer (FRET) imaging, multicolor single-molecule fluorescence (SMF) imaging, multiwavelength total internal reflection fluorescence (TIRF) imaging, fluorescence in situ hybridization (FISH) imaging, multichannel confocal microscopy when used in conjunction with a spinning-disk confocal, two-color polarization/anisotropy studies, and simultaneous calcium and pH studies with indo-1 and SNARF.

The features of the Photometrics QV2 include simultaneous acquisition of up to four images, the ability to separate images by wavelength, polarization, or amplitude, easy mounting to most microscopes, improved adjustment control for easier image alignment, redesigned aperture adjustments to ensure parallel apertures, and the ability to use standard 25-mm-diameter emission and polarization filters.

The Photometrics QV2 is compatible with many Photometrics and QImaging cameras, but it is recommended to contact your local representative to verify compatibility with specific cameras.

The Photometrics QV2 is a four-channel simultaneous-imaging system that allows for the acquisition of up to four emission channels in a single exposure.

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