Evelyne Z. Daitz, who worked with Lee D. Witkin at his pioneering Witkin Gallery , generally regarded as the first commercially successful photography gallery in New York, then took it over after his death in 1984 and ran it for another 15 years, died on Oct. 31 in Manhattan . She was 83 .

Douglas Forrest, a nephew , said the cause was cardiopulmonary arrest caused by hypertension.

Ms. Daitz advanced the careers of countless photographers and helped carry forward Mr. Witkin’s belief in the photographic print as a collectible art form, an idea that was relatively new when he founded the gallery in 1969.

She was known for an adventurous programming spirit. During her tenure the gallery exhibited established photographers like Jill Freedman, Evelyn Hofer and Mario Cravo Neto, but it also showed the work of numerous lesser-known ones.

In addition to the many solo exhibitions Ms. Daitz mounted, she had a taste for group shows on fanciful themes.