View Full Version : overcranking 720/25p


Piotr Wozniacki
May 15th, 2008, 12:02 AM
As all PAL users might have noticed, the max speed is available for overcranking is 50fps. If you want 60fps, you need to shoot 720/24p...

Now this is obviously wasting the camera overcranking potential and I've been wondering if any reason for that exists, apart from "lazy" design?

If not, I'm putting it on the fw update wishlist :)

Matt Davis
May 15th, 2008, 01:34 AM
As all PAL users might have noticed, the max speed is available for overcranking is 50fps. If you want 60fps, you need to shoot 720/24p...

Erm, I use 720/60 in PAL mode daily!

S&Q, turn it on, rub it all the way to 60, and away we go. My S/W version is 1.3 I think.

Steve Phillipps
May 15th, 2008, 01:39 AM
It's to do with the Mhz rate at which PAL country's electricity works at (50 Mhz)
Steve

Piotr Wozniacki
May 15th, 2008, 01:46 AM
Erm, I use 720/60 in PAL mode daily!

S&Q, turn it on, rub it all the way to 60, and away we go. My S/W version is 1.3 I think.

Matt, this is strange indeed, as my fw version is 1.03 as well. Even though the manual doesn't say anything about this limitation (it says that the maximum overcranking speed is 60fps for the 720, and 30fps for the 1080 mode) - I can go up to 50 fps max in the camera S&Q menu when in 720/25p (PAL) mode...After switching to NTSC area, it can go all the way up to 60fps!

Serena Steuart
May 15th, 2008, 01:48 AM
As all PAL users might have noticed, the max speed is available for overcranking is 50fps. If you want 60fps, you need to shoot 720/24p...

Now this is obviously wasting the camera overcranking potential and I've been wondering if any reason for that exists, apart from "lazy" design?

If not, I'm putting it on the fw update wishlist :)

Well, the manual does tell you that if you want 60P you must shoot in HQ720. PAL or NTSC really doesn't mean anything in HD. It merely affects playback speed.

Piotr Wozniacki
May 15th, 2008, 01:50 AM
Well, the manual does tell you that if you want 60P you must shoot in HQ720. PAL or NTSC really doesn't mean anything in HD. It merely affects playback speed.

I guess you misunderstand my question Serena :)

Serena Steuart
May 15th, 2008, 02:00 AM
I guess you misunderstand my question Serena :)

Yes, I think so. You can hardly shoot 60P when shooting 24P, so I'm confused about the problem.

Sami Sanpakkila
May 15th, 2008, 02:05 AM
As all PAL users might have noticed, the max speed is available for overcranking is 50fps. If you want 60fps, you need to shoot 720/24p...

I use 720/25p overcranking at 60fps all the time as well.

I used it with the firmware that was in the camera when I got it in January and I used it with this firmware that it was updated to in April when it was being serviced.

Sami

Simon Frances
May 15th, 2008, 02:05 AM
I always get confused with over/undercrank, anyways, I switch to 720/25P, go to S&Q Motion, turn it on, there I can dial in anything from 1 - 60.

Edited to add:

Current camera is FW version 1.03. Prior to my current camera, I went through 3 others. I don't know what the FW version was but the first one was bought in December. With all cameras, I could set to 60.

Simon

Steve Phillipps
May 15th, 2008, 02:08 AM
Piotr, the loan EX1 I have here allows 1-60 in S&Q mode regardless of Video mode too, strange it doesn't on yours.
Steve

Piotr Wozniacki
May 15th, 2008, 02:16 AM
Guys, looks like I might have some interim fw; time to update!

If only Sony let us do it ourselves...

BTW, is another wierd thing I wrote about in the "Auto Shutter speed limitation?" thread, also not common to all other units?

Piotr Wozniacki
May 15th, 2008, 02:42 AM
Just performed the general reset of my EX1, and voila ! - I can overcrank up to 60 fps even in "PAL area" 720 mode now...

Serena Steuart
May 15th, 2008, 05:43 AM
Just performed the general reset of my EX1, and voila ! - I can overcrank up to 60 fps even in "PAL area" 720 mode now...

Yes, a lot of problems are user generated.

Piotr Wozniacki
May 15th, 2008, 05:45 AM
I can understand you felt the need to comment, Serena, but I have no idea what you mean. If you think I developed the EX1's firmware, then no - even though I've done some programming, it's not my work :)

Paul Joy
May 15th, 2008, 05:58 AM
Glad you got it sorted Piotr, I can shoot 25/60 no probs too. Just put a little family thing together actually that's all done at 25/60.

http://www.vimeo.com/1007129

best regards

Paul.

Piotr Wozniacki
May 15th, 2008, 06:21 AM
Very nice piece, Paul!

Serena Steuart
May 15th, 2008, 06:25 AM
I can understand you felt the need to comment, Serena, but I have no idea what you mean. If you think I developed the EX1's firmware, then no - even though I've done some programming, it's not my work :)

Ah, Piotr, no, I wasn't suggesting that.

Sean Seah
May 15th, 2008, 10:41 AM
Pardon my ignorance but I suddenly realised I do not understand the diff between 60fps and 25P! I thought that there are 25 progressive refreshes on the screen per second, so how does this 60fps come in? Does it mean that 60 frames are captured per second progressively, and played back at 25fps progressively?

Steve Phillipps
May 15th, 2008, 10:43 AM
Yes Sean, exactly that. So if you capture 60 frames in a second and play them back at 25 frames every seconds those 60 frames will take 2.5 seconds or so to play back - hence slow motion!
Steve

Sean Seah
May 15th, 2008, 06:24 PM
Aahhhh! Thks! BTW I caught a video at Digital Juice explaining this concept. Was great!