From the Warren Commission testimony of James "Ike" Altgens:
"Mr. LIEBELER - Now, the thing that is troubling me, though, Mr. Altgens, is that you say the car was 30 feet away at the time you took Commission Exhibit No. 203 and that is the time at which the first shot was fired?
Mr. ALTGENS - Yes, sir.
Mr. LIEBELER - And that it was 15 feet away at the time the third shot was fired.
Mr. ALTGENS - Yes, sir.
Mr. LIEBELER - But during that period of time the car moved much more than 15 feet down Elm Street going down toward the triple underpass?
Mr. ALTGENS - Yes, sir.
Mr. LIEBELER - I don't know how many feet it moved, but it moved quite a ways from the time the first shot was fired until the time the third shot was fired. I'm having trouble on this Exhibit No. 203 understanding how you could have been within 30 feet of the President's car when you took Commission Exhibit No. 203 and within 15 feet of the car when he was hit with the last shot in the head without having moved yourself. Now, you have previously indicated that you were right beside the President's car when he was hit in the head.
Mr. ALTGENS - Well, I was about 15 feet from it.
Mr. LIEBELER - But it was almost directly in front of you as it went down the street; isn't that right?
Mr. ALTGENS - Yes.
Mr. LIEBELER - Am I wrong, or isn't it correct that under that testimony the car couldn't have moved very far down Elm Street between the time you took Exhibit No. 203, which you took when the first shot was fired, and the time that you saw his head being hit, which was the time the last shot was fired?
Mr. ALTGENS - Well, I have to take into consideration the law governing photographic materials and the use of optics in cameras--lenses--and while my camera may have been set on a distance of 30 feet, there is a plus or minus, area in which the focus still is maintained. I figure that this is approximately 30 feet because that's what I have measured on my camera.
Mr. LIEBELER - And you say Exhibit No. 203 was taken about 30 feet away?
Mr. ALTGENS - But it might be 40 feet, but I couldn't say that that's exactly the distance because while it may be in focus at 40 feet, my camera has it in focus 30 feet. It's the same thing--if I focus at 15 feet, my focus might extend 20 feet and it might also be reduced to 10 feet, but my focusing was in that general area of 30 feet. I believe, if you will let me say something further here about this picture----
Mr. LIEBELER - Go ahead.
Mr. ALTGENS - Possibly I could step this off myself from this position, this approximate position where I was standing and step off the distance, using as a guidepost the marker on this post here or some marker that I can find in the area and I can probably step it off or measure it off and get the exact footage. I was just going by the markings on my camera."