 Steve Beckle |
Do DSLR viewfinders show the final picture? OK, I'll state up front this isn't really a question about the DSLR "magnification factor" with the same lens vs. a 35 mm film camera..I understand the idea of "cropped" field of view due to the smaller format of the digital sensor vs 35 mm, and how this results in a perceived image enlargement. My question is: is what you see through the view finder the same for a 35 mm vs. DSLR if you use the same lens? I would think so. If that's the case, does that imply that the DSLR image sensor captures less of the picture than what you see through the viewfinder? Or have camera mfgrs somehow twiddled with the viewfinder optics to ensure that what you see is pretty much what gets recorded by the sensor.
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Peter M. Wilcox |
To the best of the manufacturers ability the view finder will show the image captured. Having said that some will be slightly smaller, mine shows around 95% of the actual image. But in general, the optics in the view finder correct for the sensor size - there would be howls of complaint if they didn't.
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robert G. Fately |
Steve - the answer is no. If you put a 50MM lens on a film camera on a tripod and look through the viewfinder, you will see the angle of view of a 50MM lens. Let's say the scene is of a park with trees at the edges of the field of view and a table and bench in the center.
Peter's note about how most viewfinders show some amount less than the full field the sensor sees is valid, but I read your question as asking if what one sees through the viewfinder reflects what the final image will be. And the answer to that question is yes. Or, to use your working - the same focal length lens on a 35MM film camera and a 1.5 crop factor DSLR will NOT show the same view - the DSLR viewfinder will show the "cropped" view.
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