Best Value DSLR - Sony A58

Started 11 months ago | Discussions thread
tbcass
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Reflex=Reflects
In reply to havoc315, 11 months ago

havoc315 wrote:

Ummm no. The Sony dSLT mirrors do not reflex. I think you are confusing reflex with reflect. The Sony dSLTs use a stationary mirror--- no reflex at all.

Reflex refers to the fact that the mirror reflects light, in a DSLR to the viewfinder, in an SLT to the AF sensor. Twin Lens REFLEX cameras had a stationary mirror that reflected light from the upper lens to the viewfinder. If you don't believe me look it up. One thing I've learned lately is to check my facts before I post so as not to look foolish.

from wikipedia; http://en.wikipedia.org/wiki/Single-lens_reflex_camera

"A single-lens reflex (SLR) camera is a camera that typically uses a mirror and prism system (hence "reflex", from the mirror's reflection) that permits the photographer to view through the lens and see exactly what will be captured, contrary to viewfinder cameras where the image could be significantly different from what will be captured."

So you are right that the SLT is not a DSLR in the traditional sense but not for your reason. It is different in that the reflected light is not used for the viewfinder but for the AF. Canon some time ago produced a true SLR high speed film camera with a stationary pellicle mirror that reflected some light to the viewfinder while letting most of the light expose the film. It's down side was a dim image in the viewfinder.

http://en.wikipedia.org/wiki/Pellicle_mirror

http://www.mir.com.my/rb/photography/hardwares/classics/eos/eoscamera/EOS-RT/

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