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Farm field at night

This is a discussion on Farm field at night within the Critiques forums, part of the Photography & Fine art photography category; I'm trying to get the hang of nighttime photography, and was recently out practicing. This image isn't all that striking, ...

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    padrepaul77 is offline Junior Member
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    Default Farm field at night

    I'm trying to get the hang of nighttime photography, and was recently out practicing. This image isn't all that striking, but I'm looking for advice on exposure length. Next week I'll be out in the Badlands of South Dakota and going out to Devil's Tower, and I'll have a half-full moon, last quarter. I'm hoping to capture some nice night landscape shots, and if anyone has any suggestions on exposure length time I'd appreciate it. I shoot in bulb, with a remote, and experiment with ISO in the 400 or so range. This shot is 37 1/2 seconds or so, under the moon, and maybe it should have been a little longer perhaps to light up the field a tad more? I'm guessing around 30 seconds to a minute are good options, but for any night people out there any help is appreciated. Obviously it's shorter when you have more light in urban areas, but I was looking for more shooting in rural areas. Amazing at how much light the camera picks up, even when you are seemingly far away from a city.

    The other shot is a bit too noisy, and was 60 seconds, but even noise ninja couldn't get it quite right - maybe I could try fixing it a bit more, but I don't care for it with the road in front like that. Just post it as an example of kind of what I'm going for with night shots.

    Thanks!
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    Definitely both are underexposed. ISO 400 may produce noise (any under-exposed shot will often show noise too) on a long exposure depending on your camera so I'd be dropping to ISO 100 - 200 and leaving that shutter open much longer. The tradeoff is blurred stars sometimes though.

    You didn't mention your aperture setting which may help. If your subject is far away then you can probably set the fstop quite low, say around 2.8 - 4.5 for instance and still get good depth of field.

    How did you focus with so little light? That's always a trick. If the camera was able to find an area of contrast when you focused then on auto or you could see clearly then focus isn't an issue but if not you are going to have to do it manually. If the subject is far enough away you should be able to set the lens on the infinity mark (usually best focus is just off that due to temp and other variants) which I suggest you practice with at dusk when you can still see.

    Once you have that down it's just a matter of leaving that shutter open long enough for the settings to get the best shot.

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    padrepaul77 is offline Junior Member
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    Thanks for the suggestions. I just set it to infinity focus, and I believe the aperture on it was around 5.6. I can go wider than that, so might try that next time. I did a much longer exposure as well, that I re-lit and I think it's slightly better; 107 seconds or just under 2 minutes:


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    As you can see ... the danger with really long exposures when the light level is so low is the the scene starts to look like something you could have taken during the day. When that happens it may be necessary to take several shots at different exposures and blend them together to get it to look as your eye really saw it.

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    Quote Originally Posted by Mad Aussie View Post
    You didn't mention your aperture setting which may help. If your subject is far away then you can probably set the fstop quite low, say around 2.8 - 4.5 for instance and still get good depth of field.
    I thought it was the opposite. To get good depth of field, I would usually use smaller fstop? am I wrong?

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    The smaller you go with the fstop number (which means the wider open the aperture and therefore more light gets in) ... the less depth of field you get. So f2.8 gets less depth of field than f16. f16 is a much smaller aperture (hole) for the light to pass through.

    What I was saying above is that even with a small fstop number like f4.5 you will still get a reasonable amount of depth of field (sharpness throughout your photo) due to the subject being in the distance. Hope that all makes sense now.

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    Crystal clear!
    "Because the people crazy enough to think they can change the world, are the ones who do." Steve Jobs

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    padrepaul77 is offline Junior Member
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    So, might the best way to fix this be to perhaps cut the sky and paste and blend it in using photoshop?

    Thanks,
    Paul

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    Quote Originally Posted by padrepaul77 View Post
    So, might the best way to fix this be to perhaps cut the sky and paste and blend it in using photoshop?

    Thanks,
    Paul
    I don't think I'd try to fix it really. Chalk it up to experience.
    If it were me though, I'd have taken several shots at different exposures and then blended them later in PS to get the look I wanted. I can often re-created a far more natural look (as I remember the scene at the time) in this way.

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    I do have both images, but I'm kind of lost as to how to blend them together into one. Any suggestions or places to look for help?

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