On Sep 19, 2012, at 5:11 PM, J.C. O'Connell wrote: > As long as the megapixels arent too great, say 24MP, I dont know > why a larger sensor is more expensive to make, it should be cheaper > than a small one intuitively. limiting the resolution would keep cost > down while still allowing for many advantages of larger format sensor.
The probability of errors is proportional to the area of the chip. If there is a 1% chance of an error on any square centimeter, and you can put 150 1cm^2 sensors on a wafer, but only 10 10cm^2 on a singe round wafer, you'll get about 135 1cm^2 sensors, and 10*(.9^10) 10cm^2 sensors. In short, out of each wafer you'll get fewer sensors, and each sensor will have a much higher chance of failure. Then there is the economy of scale issue, the development of an APS sensor is amortized over millions of units, a MF sensor is amortized over thousands of units. > > Another cool camera would be a digital version of the 6x17. > > ----------------- > J.C.O'Connell > [email protected] > ----------------- > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > Godfrey DiGiorgi > Sent: Wednesday, September 19, 2012 8:04 PM > To: Pentax-Discuss Mail List > Subject: Re: Fixed lens digital cameras : Why not go larger than 24x36? > > On Wed, Sep 19, 2012 at 4:34 PM, Mark C <[email protected]> wrote: >> Like a digital version of a Fujifilm GSW 6x7 or 6x9 camera? That would be >> sweeeet.... > > It would be grand, but it would be very very costly. A big sensor like > that is the most expensive component of the camera. > > I'd love a true 6x6 digital camera with a 75 mm lens. The available, > new film cameras (Fuji GF670 $1600, or Voigtländer Bessa III $2995, or > Rolleiflex TLR $5500) are already a great deal of money. Add a $10,000 > sensor/data system package ... Eventually, someone will make it, I'm > sure. > > -- > Godfrey > godfreydigiorgi.posterous.com > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Larry Colen [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
