Well, if you trust 1/focal_length rule and assume 1mm circle of confusion, you can yield a first order approximation using elementary physics:
V = focal_length * angular velocity t = 1/focal_length (equivalent in second); d = x (I would assume 1mm at film base); Using V = d/t, this gives a hand-held angular velocity of 1 rad/sec (or 1/2pi Hz). You can also verify that this is focal length independent. I hope this helps, Gary ----- Original Message ----- From: "Willem-Jan Markerink" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, April 07, 2005 7:19 PM Subject: Re: Not really EOS-related, but your help will be appreciated > On 7 Apr 2005 at 8:26, Alex Z wrote: > > > I'm sorry posting OT issue, but so far wasn't able to obtain the info > > from other sources, perhaps you guys may be willing to help me out. I > > need a statistical technical data on camera hand-holding vibrations, > > i.e. typical frequencies, angle amplitudes, angular velocities or > > accelerations involved. Statistical data (i.e. actually measured) is > > most desired, however based theoretical evaluations may also come > > handy. This is required for my B.Sc.EE project (a kind of image > > stabilization technology, isn't based on current implementations). > > I've spet lots of time in the net searching for this kind of stuff, > > put lots of strain on my eyes, nothing so far. Would be grateful if > > someone could direct me to the links where such data can be obtained > > from. > > > > Thanks in advance, Alex > > I can only vaguely remember that Bob Atkins once did some testing, > but mostly tripod-typical vibrations....at least in photo-context > that is probably the most elaborate field work done, or at least > present on the Net....but far from any formula's. > > > > -- > Bye, > > Willem-Jan Markerink > > The desire to understand > is sometimes far less intelligent than > the inability to understand > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
