H alpha and [O III] narrow-band, wide-field (7 x 7 deg(2)), CCD images of t
he Small Magellanic Cloud were compared, and a catalogue of candidate plane
tary nebulae and H alpha emission-line stars was compiled. The catalogue co
ntains 131 planetary nebulae candidates, 23 of which are already known to b
e or are probable planetary nebulae or very low excitation objects. Also, 2
18 emission-line candidates have been identified, with 113 already known. O
ur catalogue therefore provides a useful supplement to those of Meyssonnier
& Azzopardi and Sanduleak, MacConnell & Davis Phillip. Further observation
s are required to confirm the identity of the unknown objects.