How to get heavy motion blur?

[Periscope]

Hi guys: Any of you know how to get a real ghosting effect (heavy blur in motion) when shooting a subject in time-lapes (8-16 fps @ 720, 30P)? I've tried the obvious, setting shutter down to 1/15th (lowest I can go, still no obvious blur).

I've also tried setting the camera into FILM CAM, to undercrank at 12 frames (at 720, 30PN with shutter set at 360.) Still no significant blur here. What am I missing here- a special hack:dankk2:?

Jefferson

 

[Joe Calabrese]

Shoot at 12fps with the shutter off. Then if you need more blur, do it in post (like After Effects).

 

[mdslammer]

Do a search for Barry Green's "Frame Rate Hack".

 

[mainstreetprod]

It only works when using the hack, below.


Here's the procedure:

1) Get a scene file text file on an SD card, usually by going into menu 8, CARD FUNCTIONS, and saving scene files to your SD card.

2) Open the scene file text file in the PRIVATE\MEIGROUP\PAVCN\SBG\P2SD directory, called SCENE1.TXT (or scene2.txt, scene3.txt, or scene4.txt) using a text editor like Windows Notepad

3) Look for the next-to-last item in the scene file. Here's what a sample scene file text file looks like:
00005000: 8 ; DETAIL LEVEL: 0
00005001: 8 ; V DETAIL LEVEL: 0
00005002: 8 ; DETAIL CORING : 0
00005003: 8 ; CHROMA LEVEL: 0
00005004: 8 ; CHROMA PHASE: 0
00005005: 8 ; COLOR TEMP: 0
00005006: 16 ; MASTER PED: 0
00005007: 8 ; A.IRIS LEVEL: 0
00005008: 1 ; NEWS GAMMA: OFF
00005009: 0 ; GAMMA : HD NORM
0000500A: 0 ; KNEE: AUTO
0000500B: 0 ; MATRIX: NORM
0000500C: 1 ; SKIN TONE DTL : OFF
0000500D: 0 ; V DETAIL FREQ : THIN
0000500E: 0 ; OPERATION TYPE: VIDEO CAM
0000500F: 0 ; FRAME RATE: DEFAULT
00005010: BE026801 ; SYNCRO SCAN :

That next-to-last item is:
0000500F: 0 ; FRAME RATE: DEFAULT

You can ignore everything after the semicolon; the semicolon indicates that it's a "comment" and will have no bearing on anything else (so, in this example, the part that says "; FRAME RATE: DEFAULT " is useless, it affects nothing, it's just there for human-readable description).

So the relevant part is:
0000500F: 0

The only thing you would want to change is that last number (in this case, "0"). To get different frame rates, use one of the following numbers:

0 = DEFAULT
1 = 2fps
2 = 3fps
3 =4fps
4 = 6fps
5 = 8fps
6 = 10fps
7 = 12fps
8 = 14fps
9 = 16fps
10 = 18fps
11 = 20fps
12 = 22fps
13 = 23fps
14 = 24fps
16 = 26fps
17 = 27fps
18 = 28fps
19 = 30fps
20 = 32fps
21 = 34fps
22 = 36fps
23 = 38fps
24 = 40fps
25 = 42fps
26 = 44fps
27 = 46fps
28 = 48fps
29 = 50fps
30 = 52fps
32 = 54fps
33 = 56fps
34 = 58fps
35 = 60fps
36+ = repeat of sequence from 50fps to 60fps

So, for example, if you wanted to get a frame rate of 2 FPS, your modified line would look like this:
0000500F: 1 ; FRAME RATE: DEFAULT

And if you wanted 44 fps, it would look like this:
0000500F: 26 ; FRAME RATE: DEFAULT

(don't try higher than 35; I tried 36 and it set it to 50fps, 37 set it to 52, so I think it just repeats 50-60 for all fields set higher than 36)

4) Save your modified text file back onto your SD card

5) Put the SD card back in the camera, go to CARD FUNCTIONS, and read the scene files into the camera.

Now, when you go to the appropriate scene file, you'll see the new frame rate there. But be aware, the only way to assign these "nonstandard" frame rates is through the SD card. If you use the menu to try to change the frame rate, you'll lose it -- it'll immediately jump to 60, and then only allow the normal rates to be selected. You'd have to re-load the scene file from the SD card in order to re-establish your "nonstandard" frame rate.