 |
English - Espaņol |
recommendations |
Picture Styles |
Sharpness - Bokeh |
|
HOME
Foto tutorial (English) Foto tutorial (Espaņol) Equipment recommendations US-ES Flaat Picture Styles Old Picture Style Tests LENS TESTS For stills For video For video (lineskip) Conclusions ND filters Other filters BOKEH TESTS Summary Alternative scenarios Badly assembled lenses and image quality Lens mount compatibility chart ISO on different cameras DIY: DR test chart RGBWK Bayer sensors DoF/FoV CALCULATOR Notes on DoF-FoV Notes on crop-DoF-FoV Custom Cropmarks for Magic Lantern on the Canon 550D How many megapixels do I want? How many megapixels can I see? Quick Monitor Calibration Chart MY VIDEOS Random rants Search engine |
(You may want to learn first the basic concepts in my photography tutorial: 1 2 3 4) Playing with my DoF/FoV calculator, I learnt the following... Say you have three different cameras: a full frame stills camera (1x crop factor), an APS-C stills camera (1.6x crop factor) and a 2/3" system videocamera (3.9x crop factor). They all deliver very nice video at 1920x1080 resolution, and 24 frames per second. Glass is ideally perfect on all three of them. You plant your tripod on a particular spot, and shoot from there using all three cameras. Then, you'll get exactly the same images, if you use the following settings: * 50mm lens set at f/5.6, 1/50s and ISO 1600 on a full frame camera * 31mm lens set at f/3.5, 1/50s and ISO 600 on an APS-C camera * 13mm lens set at f/1.4, 1/50s and ISO 100 on a 2/3" camera In all three cases, field of view, depth of field and exposure will be absolutely identical. And also compression, face distortion because of perspective, size of out-of-focus highlights... The images will be basically identical. To test my theory and illustrate the matter, I took the following three images: |
|
90mm lens set at f/2.8, 1/6s and ISO 200 on an APS-C camera 
90mm lens set at f/7.0, 1s and ISO 200 on an APS-C camera 
35mm lens set at f/2.8, 1/6s and ISO 200 on 2/3" camera 
(a 37mm lens would have been better, but I don't have one) |
Similaar is a participant in the Amazon Services LLC Associates Program and the Amazon EU Associates Programme, two affiliate advertising programs designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com and amazon.es.