John Howard wrote:
The trend seems to be smaller and Mirrorless cameras with full size high megapixel sensors. I am wondering if those of you who shoot larger format digital cameras, if you did not already shoot larger format would you consider making that change now? With 36, 45 and 50 mp cameras at full size, are there advantages to going to a larger sensor? Ie with a larger format and 50 mp are the pixels larger and deliver better low light performance? More detail and sharpness.
Pixel density is finite. You can only pack so many pixels into an itty-bitty sensor.
(And it takes three physical photocells to make one color pixel!).
Optical resolution is finite (limited by a circle-of-confusion cauesd by aberrations and in all cases by an Airy disk)
You can't get blood out of a turnip and you can only get so much resolution out of a 2/3" sensor.
It's really the same game as film -- just more expensive and vastly more complex. But a roll of high-res medium
speed B&W film costs $7 but you can only buy a B&W (hir-res, high dyanmic range, low noise) monochrome
sensor from Leica (the M9 Monochrome) for $8000.
A sheet of 8" x 10" film costs about $5, but large format digital cameras do not exist in the photography market
the largest available digital cameras are medium format -- equivalent to 120 film and cost $5000 and up.
And of course, these is no way to directly compare digital cameras, since you can't pull the sensor out of one
and load it into another. With film, you loaded your favorite film into a new camera and could try it out,
comparing apples to apples.
While digital cameras offer vastly lower resolution than large format film cameras, and all are lower dyanmic range
than B&W negative film, they do offer much shorter battery life mean-time-before-failure.
The average lifespan of a digital camera seems to be about 3-5 years. The average lifespan of a film camera seems
to be about 30 - 50 years. A few film cameras have gone up in value -- no diigtal camera ever has.
Just remember: while optics and electronics have limits, marketing and advertising know no limits!