XPost: alt.windows7.general, alt.comp.os.windows-10, alt.comp.ha   
   dware.pc-homebuilt   
   XPost: alt.comp.os.windows-10   
   From: keith_nuttle@sbcglobal.net   
      
   On 8/11/2018 11:17 PM, Mr. Man-wai Chang wrote:   
   > On 8/12/2018 1:19 AM, nospam wrote:   
   >>   
   >>> Should we always compare 135   
   >>> film against CMOS sensors of different size?   
   >>   
   >> always the same size format. otherwise it's not a valid comparison.   
   >>   
   >   
   > In reality, we just need to do the job right and fair, not about   
   > comparison or superiority!   
   >   
   > What if... a big what if.... all CMOS on Earth were fried by solar   
   > storm? Maybe that explained why a man is up there in ISS. :)   
   >   
   This is sort of an answer to the original question.   
      
   quote: "The resolution of film images depends upon the area of film used   
   to record the image (35 mm, medium format or large format) and the film   
   speed. Estimates of a photograph's resolution taken with a 35 mm film   
   camera vary. More information may be recorded if a fine-grain film is   
   used, while the use of poor-quality optics or coarse-grained film may   
   yield lower image resolution. A 36 mm × 24 mm frame of ISO 100-speed   
   film was initially estimated to contain the equivalent of 20 million   
   pixels,[6] or approximately 23,000 pixels per square mm. "   
      
      
   In my experience, my 12 mega pixel Olympus camera gives me pictures as   
   good as my Old Miranda Camera with a good slide film.   
      
      
   With a chemical camera the resolution is limited to the grain size in a   
   film.  However with a print the quality of the paper the images is   
   printed on will also affect the resolution in the print   
      
   With a digital in my opinion has a large range of light conditions under   
   which you can get good images.   
      
   With all of the above, in both types of camera it is the lens system.   
   Poor quality lens gives poor quality images regardless of the film or   
   CMOS.  As an example I have a cheap phone with a 1.3 megapixel camera.   
   It gives me consistently better pictures than my tablet which has a 2   
   megapixel CMOS.  This is evident in that with the phone I can easily get   
   readable images of printed pages, but impossible with the tablet.   
      
   In other words with lens systems you can not make a silk purse out of of   
   a sow's ear, no matter how you process.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)