****************************************************** Tech weenie responses interspersed. ****************************************************** ]Date: Wed, 15 Jan 2003 19:43:42 -0500 ]From: "J. C. O'Connell" <[EMAIL PROTECTED]> ] ]About a week ago I was pondering 35mm digital ]vs medium format film. Assuming you get a killer ]35mm digital sensor, the digital limit will be determined solely ]by the lens. say 100 line PAIRS / mm that equates ]to about 32Mpixel
****************************************************** Don't forget that color gets the whole color spectrum @ each point. Double your equivalency to 64Mp & that's closer. ****************************************************** ]But with medium format, the lenses arent as sharp ]so they lose the edge there as well as the limits of the film ]resolution. I also calculated around 32Mpixel ]for 6X7 with film. ****************************************************** Modern medium format lenses come pretty close to 35mm lenses. Commonly 90% as good. So, .9 * 64M * ( (2.65x1.75) / 1.5 ) (where 2.65x1.75 is 6x7 sq in. area that is approx the equiv 1:2 ratio of 35mm form factor and 1.4 is roughly the sq in area of 35mm) That would be rounded to 190Mp to equal 6x7 film results. When the larger sensors go into higher production, then a new Digital Brotherhood will be necessary. That's when we'll be picking up Pentax 6x7 & 67 & 67II bodies for $10 in thrift shops. ****************************************************** ]My conclusion ended up being it's a toss up, 35mm ]digital, taken to the max will equal 6X7 with film. ]6X7 with film gear is far cheaper at this point but depending ]on how much you shoot, high end 35mm digital could ]be cheaper in the long run and there are far more ]variety of smaller,lighter lenses avail. with 35mm. ] ]JCO ****************************************************** Just some thoughts. :) ******************************************************
