Digital BW, The Print

Hi Truman,

SOME time lag is due to reading out the sensor, but certainly not of the
order that is being spoke of (40 seconds).  Readout of the sensor should
take less than a second.

Writing to data storage is obviously an issue.  If you are writing to a hard
drive, it won't be any faster (in fact slower) than writing 18M (for raw or
uncompressed TIFF) to your desktop hard disk.

Austin


> The time lag is caused by the read out to the storage device. There is a
> lot of information comeing off the sensor and only a few spickets for it
> to come through. It's somewhat like pumping a fire hose into a soda
> straw and tiff files are big - it's a big bottle neck.
>
> Truman
>
> Austin Franklin wrote:
>
> >
> > > > There is a HUGE processing saving (and that means in time as well)
> > > > because no interpolation is necessary..
> > >
> > > It isn't that big a deal...in fact, it is easily done in hardware,
> > and the
> > > cost is very minimal.  I've developed some hardware interpolation
> > > filters...
> > >
> > > Austin
> > >
> > > Please forgive my ignorance, but I was under the impression that
> > > if the chip were able to capture all three elements (RGB etc),
> > > without interpolation and guestimating the correct color
> > > information, it would save a tremendous amount of time. what do
> > > you mean by it isn't that big a deal? I wait 40 seconds for a
> > > tiff file to be created
> >
> > Hi George,
> >
> > I highly doubt that is due to interpolation.
> >
> > > ( although i will soon be trying raw),
> > > and emptying out a buffer during a portrait session can seem
> like eons.
> > > I thought that the Foveon would eliminate all the algorithyms
> > > etc. that take so long to create and write a file.
> >
> > You can certainly test this by simply creating a raw image
> file...  I can
> > see if you are doing compression, that might slow things up...but
> > interpolation should be being done in hardware, and therefore take up
> > literally no additional time.  But again, I don't know what different
> > manufacturers do, so I really can't say.
> >
> > Regards,
> >
> > Austin