Good day fellow Pentaxians!
*****(UPDATED)*****
As what from the title says, it's to explain the difference between sensors from APS-C (like the Pentax K-5/Canon 7D/ Nikon D7000) to 35mm Full Frame (like Canon 5D mkII, mkIII/Nikon D700, D800) and what are the effects on photographs.
Many photographers are still confused on the difference between the two, and thus only concerned on the number of pixels and the dynamic range of the camera's sensors.
So, here's a video made by Karl Taylor, a photographer from UK, a quick overview explaining the difference:
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Full Frame vs APS-C 1) Full Frame and APS-C sensors on a projected Full Frame Lens' Image Circle:
- 200mm lens on Full frame
- 300mm FF equivalent on APS-C (1.5x), but on Full Frame you can just crop it out on post process if you want a tighter composition.
2)
BOKEH / Depth of Field (85mm lens)
- 85mm @ f/1.4 on Full Frame; Subject at 3 meters away from lens:
- 85mm @ f/1.4 on APS-C; Subject 3 meters away from lens (same amount of bokeh but tighter composition due to 1.5x crop factor):
- 85mm @ f/1.4 on APS-C; subject 4.3 meters away (moving backwards to get the same composition but now losing the amount of bokeh)
3) Aberrations
- Here, let's compare the effect of aberrations between full frame and aps-c using the same lens, 85mm @ f/2.0:
On Full Frame Sensor But on APS-C Sensor, which is a 1.5x crop factor
- Now, the aberrations are also magnified to 1.5x, thus emphasizing the aberration more.
With all of this said in here, that's why many professional photographers much prefer cameras with larger sensor. They don't just seek a quality image resolution and/or with higher pixel count and/or better dynamic range, but also seek a format which gives them more control on their photographs.
So, we hope that Pentax-Ricoh would really come up a fine full-frame Pentax DSLR...
Last edited by richard balonglong; 06-26-2012 at 11:10 PM.