
Were photographs forged to poison Oswald's image?
Those who believe the photos are fake ignore the exhaustive scrutiny the photos underwent at the hands of the House Select Committee's expert photographic panel in 1978. Using a variety of sophisticated techniques, such as stereoscopic viewing and grain analysis (see below), the panel determined that the photos contain no evidence of forgery.
Read the panel's complete report here.
Oswald's widow, Marina, has confirmed to the Warren Commission, the House Select Committee, and numerous independent researchers that she herself took the photos, which the House Select Committee panel determined were made with Oswald's own Imperial Reflex camera, to the exclusion of all other cameras.
As author Gus Russo has demonstrated, several people saw one of the backyard photos before the assassination.(1)
It also defies common sense that conspirators would waste hours of their time meticulously forging evidence that has no forensic value, that is to say, fails to incriminate Oswald in any way.

From Gerald Posner, Case Closed (New York: Random House, 1993)
You may wish to see . . .
The JFK 100: Who was Lee Harvey Oswald?
NOTES:1. Gus Russo, Live by the Sword (Baltimore: Bancroft, 1998), p. 117.
The JFK 100: Who was Lee Harvey Oswald?