Emission nebulae such as M42 & M43 seen here are fine choices for image intensified astronomy. The H Alpha wavelength falls in the high sensitivity region of Gallium Arsenide photocathode used in the I3. Also
look at M8, 16, 17, 20, 27, 42, 43, 57, 76 and 78.
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Globular clusters are an "ideal" deep sky object for the I3 Image intensified eyepiece. The great percentage of incredibly old M class stars that make up the population of globulars emit infra- red radiation that the intensifier is most sensitive to. 29 of the 109 Messier objects are globular clusters, these include M2, 3, 4, 5, 9, 10, 12, 13, 14, 15, 19, 22, 28, 30, 53, 54, 55, 56, 62, 68, 69, 70, 71, 72, 75, 79, 80, 92 and 107. Open clusters are also an excellent choice. These are M6, 7, 11, 18, 21, 23, 24, 25, 26, 29, 34, 35, 36, 37, 38, 39, 41, 44, 45, 46, 47, 48, 50, 52, 67, 70, 93, and 103. Together these 2 classes total greater than 50% of the Messier objects.
Galaxies, like the central region of M31 shown here can be memorable observing experiences when seen with the I3. The following are primary choices. M31, 32, 49, 59, 60, 64, 82, 84, 85, 86, 87, 89, 104, and NGC 891 & NGC 4565. Edge on examples like NGC 4565 look like a photo in the eyepiece of even modest size telescopes.

CLICK HERE FOR A LIST OF THE ABOVE MESSIER OBJECTS BY SEASON

80 of the 109 Messier objects as listed above represent a small fraction of
deep sky objects visible using the I3 intensified eyepiece. Please call us
at 303-889-5910 for more information.