View Full Version : ex1 shallow DOF screengrabs

01-15-2008, 10:31 PM
this may or may not be a useful thread .. although of course, i do hope it is. :)

i am interested in purchasing a Sony EX1. i also surf the net on a very slow 56k dial-up modem.. seems almost mutually exclusive eh? well, it is a long story, but there it is.

my point is this: i cannot watch 200 meg clip examples.
therefore i would like to see a few frame-grabs or screen-shots with examples of how "shallow" the Ex1 can truly go.

i have read that the Ex1 can do the equivalent of 16mm-camera shallow DOF. is this true? i have never worked hands-on with a Bolex, although i have edited footage from one.. seems like it can do the equivalent of a 15 pixel blur on objects 15 feet behind the subject (in a PAL 768 by 576 context)?

any info is greatly appreciated, thankyou.

01-16-2008, 04:50 AM
1/2 inch CCDs have a shallower DOF as 1/3 CCDs, but forget the cinema look. For that you need 35mm CCDs (or a 35mm adapter)
The EX1 dof is equivalent of the average video documentaries which are usually shot on 1/2 ccd broadcast cameras.

01-21-2008, 11:17 PM
cheers for that.. sounds like a 35 mm adapter system is the way to go. it is all too easy to wonder about things, and have no idea.. thankyou very much for the solid advice. :) you have made things a lot clearer.

02-20-2008, 09:21 PM
Shallow DoF? It's certainly much easier than with 1/4" chips, that's for sure!

I give you "Winter Thaw" a film I made that showcases the DoF capabilities of the EX1.


02-20-2008, 09:50 PM
2/3 Inch chips are close to a 16mm image area. 1/2 Are a good deal smaller. I always find them just as troublesome to throw the background out as 1/3 inch cameras are.

02-20-2008, 10:17 PM
i also surf the net on a very slow 56k dial-up modem..

really? i didn't know 56k dial-up still existed ! amazing!

02-20-2008, 10:39 PM
"Winter Thaw" is a very good example of what can be done with the EX1...and without a 35mm adapter ! The EX1 already has so many tools built-in!
Great work Mark.

02-21-2008, 11:33 PM
Thank you, FrankC. Then the film accomplished its objective, which was to show the DoF capabilities of this camera.

As for the various chip sizes and how easy it is to throw the background out of focus, I find it's a progressive change as you go up in chip size. Nearly impossible at 1/4", such as on the TRV900 (remember that one?) and almost as bad on the V1U, but saved somewhat by a long zoom, to being almost useful on the VX2000, and finally to a point on the EX1 where you can get some nice differential focus, as my film demonstrates.
Ultimately, the answer lies in technique. :)

03-12-2008, 02:45 PM
f-stop: 1.8, 180°shutter(1/50), 0db gain, longest focal length possible.


03-13-2008, 01:11 PM
I posted my first footage on this thread (http://www.dvxuser.com/V6/showthread.php?t=126983)

If you have enough space to separate fore/background, use the lens at the long end, and open it to 1.9 you can blur stuff to oblivion - though this can also be a way of maximising CA round the edges. I guess if you have control over your shooting environment so that you can artificially increase fore/back separation you will be able to give a reasonable impression of shallow depth of field. My initial impression at least was pretty favourable in this regard.