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In "Bulb" mode, the shutter will remain open for as long as you have the shutter button (or remote shutter release) depressed. It allows you to vary your exosure time "on the fly" rather than by some fixed/preset value. The term is a holdout from early cameras where one would squeeze a rubber bulb on the end of an air hose to actuate the shutter mechanism.I have heard the bulb feature mentioned before, what is it? Sorry
I'm new to all this.
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Nikon D40 / 18-55, 55-200 VR so far![]()
RR
ok what kind of lens to you suggest got right now:
10-20mm sigma
19-35 tokina
50mm nikon
70-300mm nikon vr
so what should i use?
Good question. I usually set for manual focus set to infinity to prevent the lens hunting. This also prevents the lens accidently focusing on something (building, tree, etc.) in the foreground. Exception would be if you want foreground object in the photo. Then I'd focus on the foreground object with manual focus and everything should be in focus assuming you are far enough away and using small enough f-stop (f/11 or smaller).focusing? do you pre-focus in the dark, or when you hit bulb with
remote, does it AF?
I agree with Tom here....In "Bulb" mode, the shutter will remain open for as long as you
have the shutter button (or remote shutter release) depressed. It
allows you to vary your exosure time "on the fly" rather than by
some fixed/preset value. The term is a holdout from early cameras
where one would squeeze a rubber bulb on the end of an air hose to
actuate the shutter mechanism.
It can be particularly handy for fireworks as the "optimum"
exposure time can vary depending on what's being launched at the
time. Essentially, shooting fireworks is like painting with light.
The aperture/ISO will mainly determine the amount of saturation.
Too wide of an aperture the lights of the fireworks will be
overexposed as they streak across the frame, reducing their color
saturation, ultimately to white. The shutter speed will mainly
control how much of a given group of bursts will be included in the
photo.
Exposure times can vary anywhere from about 1 to 8 seconds or so
depending on the effect that you're looking for, with 2 to 4
seconds being the norm. Longer exposures capture longer streaks
and wider bursts than shorter exposures. Whatever f-stop you've
chosen, try and stop down a stop or so more during the grand finaly
which will tend to be a good deal brighter than most of the show.