Need some help with long exposures at night and camera shake?

13 years 4 weeks ago #45903 by Big Kevin
A buddy let me borrow a 500mm f/4 lens for a week. First let me say this lens is a tank! But incredible lens. I was trying to take some photos of the moon and it was little windy out and I kept noticing when I zoomed in on the photo that was just taken, I could see things weren't exactly sharp as I would have liked to see. I narrowed it down to the lens was being moved around by the wind ever so slightly.

So what do you do when the wind is high and you have a large lens on the camera? How do you keep the vibration to a minimum?


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13 years 4 weeks ago - 13 years 4 weeks ago #45907 by chasrich
There is a number of things that need to be checked. Did you trigger the shutter remotely? Was the tripod on stable ground like concrete or perhaps standing on grass or a tabletop could contribute? The weight of the lens adds to the stability of the camera. This advantage can be amplified by sandbagging the tripod with some dead weight. The tripod itself might be a contributor if it was not something really sturdy like a Manfrotto. Lowering the legs might make it more sound by getting it closer to the mother earth. There could have been a little slight cloud cover or other atmospheric problems like a local wildfire I experienced a few days ago shooting a setting moon.

I'm sure there are other hints but this might do for starters. Maybe it was just the wind. Can we see the shot?

“Amateurs worry about equipment, professionals worry about money, masters worry about light, I just make pictures… ” ~ Vernon Trent
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13 years 4 weeks ago #45914 by effron
How about some settings, post a pic, and we won't need to guess.......

Why so serious?
Photo Comments
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13 years 4 weeks ago #45923 by Big Kevin

effron wrote: How about some settings, post a pic, and we won't need to guess.......


I deleted the photos, I didn't like them. I wasn't thinking about this thread at the time :(


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13 years 4 weeks ago #45925 by crystal

Big Kevin wrote:

effron wrote: How about some settings, post a pic, and we won't need to guess.......


I deleted the photos, I didn't like them. I wasn't thinking about this thread at the time :(


that's ok. Personally I think you did the right thing. You took pictures, it didn't come out as good as you liked, so you deleted them. No biggie. )alot of people will keep their bad pictures, and post them because they think the pictures are good) We really don't need to see the pictures to be able to answer your question.

I have a 50-500mm. I won't even tempt to hold it hand held at night for long exposures. Attached the camera to the tripod, make sure everything is as tight as possible. Make sure the legs to the tripod are sturdy. If need too weigh down the tripod. Even the slightest touch of clicking the shutter can cause shake, so you would want to use the timer or a remote.
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13 years 4 weeks ago #45929 by Big Kevin

chasrich wrote: There is a number of things that need to be checked. Did you trigger the shutter remotely? Was the tripod on stable ground like concrete or perhaps standing on grass or a tabletop could contribute? The weight of the lens adds to the stability of the camera. This advantage can be amplified by sandbagging the tripod with some dead weight. The tripod itself might be a contributor if it was not something really sturdy like a Manfrotto. Lowering the legs might make it more sound by getting it closer to the mother earth. There could have been a little slight cloud cover or other atmospheric problems like a local wildfire I experienced a few days ago shooting a setting moon.

I'm sure there are other hints but this might do for starters. Maybe it was just the wind. Can we see the shot?


Big help. It was triggered with a shutter on timer. I'm pretty sure it was the wind, it was pretty gusty. I will need to try to see if the sand bag idea will make a difference. Thanks again!


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13 years 4 weeks ago #45938 by chasrich
I have two types of sandbags for sale... Empty bags for $2.00 plush S/H and the same bag only full of it for the same price but the shipping and handling go through the roof... :rofl:

“Amateurs worry about equipment, professionals worry about money, masters worry about light, I just make pictures… ” ~ Vernon Trent
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13 years 4 weeks ago #45940 by arkady001
Also bear in mind that exposures over 2 seconds will register movement of the moon at 500mm or longer.
Think I'm kidding? Focus on the moon with a long lens (500mm+) , frame it at one side and time how long it takes to move to the other side of the frame.


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13 years 4 weeks ago #46119 by Joves
Well with the moon you can pretty much shoot it at higher shutter speeds. Unles you are purposely dragging the shutter. Also since you have a D300 there is the Mirror Lock Up option. If you want to do longer shutter times then a good old trick I would use for astrophotography was to hold a piece of cardboard over the lens, press the shutter then remove the cardboard and do the exposure as planned.


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