引用:

原帖由 johnisman 於 2007-12-21 07:45 發表


I don't think so, jus visit any camera factory in china, each DSLR will need 50L of clean water to produce, these tonix water will thorw into river and goes directly into sea, then the fishs sw ...

Not really.  Dating back to the 70's, cameras started using digital components and moving towards less mechanical controls.  That was a start of what you mentioned as the cause of water pollution.  You missed a very important aspects of using negative: developing and fixing.  Did you calculate how much water needed per picture?  Do you know that plenty of chemicals, heavy metals and cyanides, just to name a few were by products of negatives?

As a conclusion, digital cameras produces a finite amount of pollutants on the from end (x gms. per camera plus y gms. per memory device) and pollution of negative using cameras emit pollutants per frame of negative used.  Please do the calculation.

引用:

原帖由 dixmos 於 2007-12-18 07:22 發表


乜原來菲林機像數咁高架?

Depends on the speed of the negative.  Using the fast ones (ASA>400) you won't get a lot.  Those are the ones that you can't enlarge beyond 4R or else you will be looking at dots.

引用:

原帖由 parkers96 於 2008-1-3 02:15 發表


Depends on the speed of the negative.  Using the fast ones (ASA>400) you won't get a lot.  Those are the ones that you can't enlarge beyond 4R or else you will be looking at dots.

A scanned 35mm file can provide an image similar to that of a 19.5 megapixel digital using 300ppi printer and make a real good 12 x18 true photo quality picture.