Erik_H
Loc: Denham Springs, Louisiana
Ok, so I got bored and was wondering about the differences in focusing methods and which one gave the sharpest results. So I tried a quick test and shot my calendar using first; manual focus through the viewfinder, then; manual focus using live view zoomed @ 100%, then auto focus. All shots were taken with my D7000 and 85mm 1.4 lens, mirror up with delay mode on using a wireless remote in a tripod. In looking at the results I noticed that the shots taken in live view were exposed slightly darker than the other two shots in the series. Curious, I took a couple more three shot series of different subjects with the same results, the L.V. shots were always slightly darker. Has anybody ever noticed this happening? The difference isn't much but it is there.
Can't answer the darkness issue, but I would have liked to have seen you do one in manual focus using the LCD screen.
Erik_H
Loc: Denham Springs, Louisiana
The second one is m.f. using the LCD screen zoomed in to 100%.
When using live view you should cover up the eye piece of the view finder as light can enter there during exposure.
SonyA580
Loc: FL in the winter & MN in the summer
This has been discussed before. There is a difference in exposure in some cameras between using the eyepiece (EVF or OVF) and using live view. It happens on my Sony A580. It has nothing to do with the eyepiece being uncovered.
It does make a difference with Canon DSLR's .
SonyA580 wrote:
This has been discussed before. There is a difference in exposure in some cameras between using the eyepiece (EVF or OVF) and using live view. It happens on my Sony A580. It has nothing to do with the eyepiece being uncovered.
Not according to the literature... unless you have a reference... would appreciate knowing.
they look the same to me....maybe 1/10 stop difference?
SonyA580
Loc: FL in the winter & MN in the summer
Giugly01 wrote:
Not according to the literature... unless you have a reference... would appreciate knowing.
I searched for the previous discussions but couldn't locate it. I know for sure it was discussed previously and several members, including myself, concurred that is was happening. As I recall, it was something in the neighborhood of 1/3 stop difference that actually showed up in the meter readings.
The issue of covering the eye piece is particularly important with long exposure times when more light can enter via the unblocked eyepiece than through the lens.
try the same test on a subject 100 yds away and you will find your answer.
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