This post is to merely provide examples of
35mm full frame (FF) versus
APS-C.
I used my
K1000 loaded with Kodak Gold 200 and my
*ist D set to ISO 200.
Every picture I used a tripod with a quick release head so that I could change cameras without moving the legs of the tripod.
I pointed the very certain of the matte focusing screen at the same spot in each correlating example. This nearly eliminates any error in similar composition due to differences in viewfinder coverage, 91% for the
K1000 and 95% for the
*ist D, if I recall correctly.
On all of the pictures, except the “bokeh” tests, I first used the same lens to show equivalent perspective and then I used my small variety of zooms to show equivalent field of view.
Perspective vs. Field of View
If you use a certain focal length lens and stay the exact same position, it doesn't matter what format you use, the pictures will have the same perspective, but the smaller the format the more cropped the image will be.
To obtain the same field of view, you have to use different focal lengths depending on the format. This is where the 1.5 comes into play with
APS-C versus
FF.
This is where the give and take comes into play on the whole
APS-C vs.
FF arguments. Either you use the same focal length lens on the
APS-C camera to obtain a cropped version of the
FF perspective OR you use an equivalent field of view focal length. The problem with the equivalent field of view focal length is that there will be less “compression” in the image as compared to the
FF perspective. With less compression the depth of field changes which may or may not be desirable.
I plan to demonstrate these differences in the pictures I took. I'm not claiming one format is better than the other, each has their strengths and weaknesses. Please don't bash one format or the other or get into a heated/pointless debate. This post is purely for examples of both formats, you make your own conclusions.
Edit: Film was developed and scanned at a local Walgreens and Digitals were shot in Pentax RAW and automatically converted to jpeg by Google Picasa 3 when uploaded.
Last edited by zplus; 01-02-2010 at 01:26 PM.