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<blockquote data-quote="WayneF" data-source="post: 387291" data-attributes="member: 12496">SLR and DSLR viewfinders show the view with the lens always wide open.&nbsp; This makes the viewfinder brighter and improves focusing (and we can see the subject).The camera models above the D3300 and D5300 do have a Depth of Field preview button (beside lens, under shutter button), which stops the lens down to working aperture (to view through viewfinder).&nbsp;&nbsp; I doubt many users ever bother with it.Live View has to show the view stopped down (to be meaningful).&nbsp; However, the lower models typically do not react to changing aperture, it has to be set before entering live view.&nbsp; &nbsp; Top end models can change aperture during recording.Digital camcorders in contrast .... mighty few affordable ones even show or allow fstop and shutter speed and ISO settings.&nbsp; they are fully automatic.&nbsp; There might be relative compensations, but no absolute values are known.</blockquote>

[QUOTE="WayneF, post: 387291, member: 12496"] SLR and DSLR viewfinders show the view with the lens always wide open. This makes the viewfinder brighter and improves focusing (and we can see the subject). The camera models above the D3300 and D5300 do have a Depth of Field preview button (beside lens, under shutter button), which stops the lens down to working aperture (to view through viewfinder). I doubt many users ever bother with it. Live View has to show the view stopped down (to be meaningful). However, the lower models typically do not react to changing aperture, it has to be set before entering live view. Top end models can change aperture during recording. Digital camcorders in contrast .... mighty few affordable ones even show or allow fstop and shutter speed and ISO settings. they are fully automatic. There might be relative compensations, but no absolute values are known. [/QUOTE]

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