Has any one mapped out the focal distance?

[CamOp]

I was wondering if any one has figured out the focal length equivalences for the 0-99 values for DVX 100? Then to take it a step farther you could take that info and build a depth of field chart. This would help answer a lot of the questions I see about DOF

Alan

 

[Neil Rowe]

Re: Has any one mapped out the focal distance?

http://www.flickerfactory.com/egp/morestuff/dvx100focus.htm


DOF also pends your iris , and zoom settings as well though.  which are both discreet of focal length .

i know the chart converst the #s to actual distances instead of focal length.. but in the case of trying to establish DOF for a shot the distance is actually useable, whereas the given focal legth of the lense at that distance is really just fluff infowhich would be used to establish the original chart. i have seen a chart like the one you ask about though.. let me try to find it

 

[CamOp]

Re: Has any one mapped out the focal distance?

Thank you I completely forgat about this chart. I saw it posted on another list.

DUH! : I meant to say focal "distance" not "length".

With these values plus the size of your chip and focal "length" you have most of the information you need to build a DOF chart, all that is missing is the size of the circle of confusion (COC). Any one? Any one?

 

[dpryke]

Re: Has any one mapped out the focal distance?

Are the focus numbers on that chart good for the 100A also?

 

[Barry_Green]

Re: Has any one mapped out the focal distance?

According to Adam Wilt they should be the same. Don't have a 100A so I can't verify, but it should be easy enough for anyone with a 100A to do some spot-checking to make sure.