First release of Apertif imaging survey data by Adams, EAK, Adebahr, B, de Blok, WJG, Denes, H, Hess, KM, van der Hulst, JM, Kutkin, A, Lucero, DM, Morganti, R, Moss, VA, Oosterloo, TA, Orru, E, Schulz, R, van Amesfoort, AS, Berger, A, Boersma, OM, Bouwhuis, M, van den Brink, R, van Cappellen, WA, Connor, L, Coolen, AHWM, Damstra, S, van Diepen, GNJ, Dijkema, TJ, Ebbendorf, N, Grange, YG, de Goei, R, Gunst, AW, Holties, HA, Hut, B, Ivashina, MV, Jozsa, GIG, van Leeuwen, J, Loose, GM, Maan, Y, Mancini, M, Mika, A, Mulder, H, Norden, MJ, Offringa, AR, Oostrum, LC, Pastor-Marazuela, I, Pisano, DJ, Ponomareva, AA, Romein, JW, Ruiter, M, Schoenmakers, AP, van der Schuur, D, Sluman, JJ, Smits, R