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View Full Version : Building a cheap DOF (35mm) device for DV Cameras


Derrick_SA
09-22-2005, 10:42 AM
I came across these instructions on building a 35MM adapter to control DOF, maybe someone thinks it's worth something ?

http://www.mediachance.com/dvdlab/dof/index.htm

thanks,
Derrick
bikefilms
09-22-2005, 10:45 AM
Hi friend,

There is 1,000 times that amount of info on this forum. Search it out and you'll be stoked.

-a
Derrick_SA
09-22-2005, 02:42 PM
Yeah, you are right. I'm sure a lot of people probably know about the site.

hopefully there are a few people out there that will find this usefull. I guess if we post site address that are new to us it can only be a good thing because then those who are not aware of them can become aware of them.

bikefilms I will follow your advise and check out the rest of the site. thanks

Thanks,
Derrick
Dizkoteck
09-22-2005, 09:06 PM
A can of soda

Thats as cheap as cheap can get.

Alas, long awaited lessons DIY Pepsi 35 http://www.timeline24p.com/pepsi35.htm
Jay Rodriguez
09-23-2005, 05:46 AM
A can of soda

Thats as cheap as cheap can get.

Alas, long awaited lessons DIY Pepsi 35 http://www.timeline24p.com/pepsi35.htm


HAHA!!!!!!!!!!!!!!!

YES! I remember this from a few weeks ago! Thanks for doing the write up, reading it right now!
iamtommy
10-08-2005, 01:35 PM
Has anyone made the adapter mentioned by derrick?

I am new to the concepts of 35mm adapters and was wondering if there is an advantage/disadvantage to a spinning glass design vs static. And forgive me ignorance on the subject, but why does the glass have to be ground in the first place?
iamtommy
10-08-2005, 05:55 PM
{bump}
kaos1000
10-11-2005, 10:33 AM
I am new to the concepts of 35mm adapters and was wondering if there is an advantage/disadvantage to a spinning glass design vs static.

Static -
Pros - no moving parts, simple to build.
Con's - one spec of dust can ruin your image.

Spinning -
Pros - great looking image, you can have a really rough glass and still get a descent image.
Cons - moving parts, more difficult to build.


And forgive me ignorance on the subject, but why does the glass have to be ground in the first place?
Because the glass is acting as the image caputure surface (You are re-capturing the image with the video camera from the backside), and if it was transparent all the light would just pass right through it.
iamtommy
10-11-2005, 05:23 PM
ok, that make sense.

i am building the one in that article. i am almost done, i just need to get the cd. they recommend using the frosted one right out of the maxwell cd pack. does anyone know if that produces a good image, or would i be better off using a clear one and scratching it myself?