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FORUMS Photography Talk by Genre Nature & Landscapes Talk
Thread started 09 Oct 2017 (Monday) 10:54
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Portable changing room to prevent camera shake

 
01Ryan10
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OC, California
Oct 09, 2017 10:54 |  #1

Anyone use one out in the field to protect your camera/tripod from heavy winds and shake? A few of my sessions at Convict Lake had some really strong winds, and many of my photos came out blurry due to wind shake. I'm thinking the best way to mitigate that is a portable changing room. I'd probably look silly, but at least I'd have sharper images. :lol:

They fold up small, and they're lightweight.

https://www.amazon.com ...ds=portable+changin​g+room (external link)


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saea501
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Oct 09, 2017 10:59 |  #2

If the prevailing winds are high enough to cause camera shake to the point where it's visible in your pictures, all this thing will probably do is blow over on top of you.

I dunno.......I've shot in some fairly stiff winds and camera shake was never a problem. At least not from the wind.


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MalVeauX
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Oct 09, 2017 11:11 |  #3

I agree that if the wind is strong enough to vibrate your camera and produce shake (at wide angle, I know it will with a long telephoto), then this thing is just going to cause you fits in the wind and act as a sail.

I do it at the coast often, there's always a steady wind, not a breeze. I just get low to the ground, get the legs spread out far, and you can hang weight on it. At wide angle, there will be no visible shake.

Now, if you're trying to do this with a telephoto (400mm+) for long exposure duration (over 30 seconds, etc), then yes it's very hard to do long exposure in high winds and you will see some shake in there. But a little fabric shield isn't going to help there either, and will probably just cause fits.

Very best,


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01Ryan10
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Post has been edited 11 days ago by 01Ryan10.
Oct 09, 2017 11:15 |  #4

Yeah...perhaps not on a wide angle lens, but I do shoot with my 70-200 often, and that's where I will see issues with wind shake.

You are right about wind actually blowing over the tent. that did cross my mind. It does come with spikes to anchor it down. If you're on a paved surface, I guess you better have sand bags, or perhaps just fold the bottom corners to the inside and stand on them. Perhaps there are portable changing tents that have a full bottom, then if you're standing in it, you will be the anchor.


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RDKirk
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Oct 09, 2017 11:22 |  #5

01Ryan10 wrote in post #18469033 (external link)
Yeah...perhaps not on a wide angle lens, but I do shoot with my 70-200 often, and that's where I will see issues with wind shake.

You are right about wind actually blowing over the tent. that did cross my mind. It does come with spikes to anchor it down. If your on a paved surface, I guess you better have sand bags, or perhaps just fold the bottom corners to the inside and stand on them. Perhaps there are portable changing tents that have a full bottom, then if you're standing in it, you will be the anchor.

Rather than something so large, think about something like the snap-up open-sided shelters:

https://www.amazon.com​/dp/B072BSKX7R?psc=1 (external link)




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01Ryan10
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Oct 09, 2017 11:26 as a reply to RDKirk's post |  #6

That looks like a larger footprint.


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MalVeauX
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Oct 09, 2017 11:30 |  #7

If I'm not able to get low to the ground, I add weight to the center.

IMAGE: https://farm2.staticflickr.com/1586/26520142651_fe32989fe4_c.jpg
[IMAGE'S LINK: https://flic.kr/p/GpuE​sP] (external link)20160422_065131 (external link) by Martin Wise (external link), on Flickr

And when I'm in the water that is moving, which vibrates everything constantly, I just anchor it by positioning it where there's less drag on the legs.

IMAGE: https://farm2.staticflickr.com/1639/26097953316_09ea139417_c.jpg
[IMAGE'S LINK: https://flic.kr/p/FLbQ​hm] (external link)IMG_9689 (external link) by Martin Wise (external link), on Flickr

And when I'm using a 600mm for a 10 minute exposure, I use a 1300lb concrete pillar for vibration suppression in the wind. But... that's not portable. :P

Very best,

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01Ryan10
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Oct 09, 2017 11:35 |  #8

Yeah...for my 16-35, i just hang my bag as well, but I do notice camera shake with my 70-200 even with a hanging bag. I think for $30ish bucks, I may just buy and try it sometime.


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01Ryan10
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Oct 09, 2017 11:37 |  #9

For instance...I'm heading to San Francisco in December. I'll have about 60 mins of time to get a nice cityscape. I know it can be windy there, and I will probably use my 70-200 to get a panorama. I think this $30 item can help ensure I get a clean shot if it's windy. I don't really have the option of going back any time soon.


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gjl711
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Oct 09, 2017 11:38 |  #10

It might help also to give some of the shooting details. There is a huge difference between shooting a 10 second exposure, 1 second exposure or 1/100 second exposure. The best way to eliminate camera motion is to use shutter speeds so that any camera movement is not noticeable. The faster the shutter, the less impact any movement is in the final image. This is especially true when shooting long lenses.

If that's not possible, a stronger tripod and some ballast usually works well for me. Generally I hang my camera bag off the center post and it's enough mass so that the wind does not affect impart a lot of tripod movement. Also, I found that using MLU along with the 2 second timer really cuts down on camera shake especially for long exposures. For example the below pic is the ISS passing over head. I forgot to put my camera in MLU with timer and you can clearly see the shake from the mirror alone. Top one is 100% crop from bottom image. The first second or two the camera is really moving.

IMAGE: https://c2.staticflickr.com/6/5031/7423840590_8e7003e61f_b.jpg

IMAGE: https://c2.staticflickr.com/6/5115/7423838974_b9f6e4601a_b.jpg

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RDKirk
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Oct 09, 2017 11:40 |  #11

01Ryan10 wrote in post #18469041 (external link)
That looks like a larger footprint.

Larger footprint, lower height, more points of attachment, greater wind resistance.




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MalVeauX
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Post has been last edited 11 days ago by MalVeauX. 2 edits done in total.
Oct 09, 2017 11:54 |  #12

I do 200mm with a 10 stopper often. Again, at the coast line. It's non-stop wind. Constant wind isn't so bad. It's the gusts that cause the shake during the exposure. The tripod can absorb a lot of vibration from constant wind. To increase that stability, heavier mount, lower to the ground (gain a lot of stability doing this; though not always possible to get the comp you want or unobstructed FOV).

What I do, when I've got really hard wind and gusts, is that the wind generally comes from a general direction, I just hold my hat in front of my camera/lens to shield it from the wind the direction its coming from.

If its windy enough to show up at 200mm for a long exposure (especially a short long exposure, like 30 seconds), then a tent is not going to be helpful unless you're wearing it and standing where the wind is coming from, wind that strong will just push the fabric towards your setup and either touch it (huge vibration) or whip back and forth in the wind, etc. It's going to be a bunch of hassle. Like you said you can try it for cheap, but really, I wouldn't. Even your hand along the lens (not touching it) to shield gusts will help a lot compared to fooling with a tent in the wind.

IMAGE: https://farm2.staticflickr.com/1601/26379218695_28846ca937_c.jpg
[IMAGE'S LINK: https://flic.kr/p/Gc3o​Fr] (external link)IMG_9710 (external link) by Martin Wise (external link), on Flickr

I used a tent for a while, similar to what you're looking to use. When the wind blew, that thing would basically touch me and the setup, even with a lot of room, gusts would just take that thing. Granted, I wasn't doing long exposure with it at the time, so it wasn't a problem. But, if I were doing long exposure with that 600mm, I would have been in trouble and lost practically every shot longer than a second or two, because the wind flings these tents around like a kite. They are made to simply hide you, and nothing more.

IMAGE: https://farm8.staticflickr.com/7294/16178709600_46c58da8e7_c.jpg
[IMAGE'S LINK: https://flic.kr/p/qDE7​GY] (external link)DPP_2397_BM (external link) by Martin Wise (external link), on Flickr

IMAGE: https://farm8.staticflickr.com/7707/17641146398_01e668f231_c.jpg
[IMAGE'S LINK: https://flic.kr/p/sSTu​dw] (external link)BirdFeederMKII_Setup (external link) by Martin Wise (external link), on Flickr

+++++++++

A little off topic, I know, but...

While this is not the same thing, a point to make is still relevent is to have a heavier tripod/mount, the weight helps a lot.

Again I know this is not portable, not appliable to what you're doing, but I'm just stressing the point of mount stability relative to long focal length and long exposure, it does go a long way to help suppress vibration when you're "heavy."

To illustrate, here's a 600mm set up for long exposure on pin point stars that absolutely show the vibration of wind from even gentle breazes, let alone vibration from the ground itself from just walking near by. To supress vibration even in the wind, I use overkill mount weight and material to supress all wind with brute force resistance via weight. 1300lbs of concrete (this goes 3 feet into the ground as a big block with the pillar coming up) and a 40lb mount bolted to it so they're one solid anchor. And I can do 10 minute exposures at 600mm with this no problem.

IMAGE: https://farm1.staticflickr.com/720/31716094994_79ccd5cd90_c.jpg
[IMAGE'S LINK: https://flic.kr/p/QjDh​53] (external link)20170127_182345 (external link) by Martin Wise (external link), on Flickr

Here's 600 seconds, single exposure, at 600mm. Round stars, no vibration that can be appreciated really. Stability is the key.

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Very best,

My Flickr (external link) :: My Astrobin (external link)

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01Ryan10
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Oct 09, 2017 13:16 |  #13

Great points. And to answer, yes...I shoot sunset, dusk, and twilight with my 70-200, so shutter speeds of 10-30 seconds are common. Perhaps I'll try an umbrella to shield from wind the next several days. I've also gotten as low to the ground as possible, but like you said, some comps won't allow it.


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Wilt
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Oct 09, 2017 15:28 |  #14

01Ryan10 wrote in post #18469051 (external link)
For instance...I'm heading to San Francisco in December. I'll have about 60 mins of time to get a nice cityscape. I know it can be windy there, and I will probably use my 70-200 to get a panorama. I think this $30 item can help ensure I get a clean shot if it's windy. I don't really have the option of going back any time soon.

Unless you are in SF in winter during passing rainstorms, winter offers surprising light winds! I know, as a former owner of sailboats during a three decade long period on SF Bay, as there were MANY winter days with insufficient winds to even fill sails to support race events lasting a couple hours during race days.


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Wilt
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Post has been last edited 11 days ago by Wilt. 3 edits done in total.
Oct 09, 2017 15:38 |  #15

I find that all too frequently, discussions of tripod stability talk about weight bearing strength or freedom from vibration (or quickness of vibration dampening being better in carbon fiber than aluminum), but ignore the issue of TRIPOD TORSIONAL RIGIDITY. For this aspect I can offer no easy solution in tripod selection, as no one ever tests for torsional rigidity!

When in gusting winds, all too often long lenses are pushed by the wind to cause the whole tripod to twist about the center column (even when not raised at all), causing the point of focus to be moved laterally in the frame, and NO additional weight can alleviate that problem.

With hanging gear bags, the wind also catches the bag and causes it to swing laterally as well, acting as a pendulum even after the wind has (briefly ) stopped gusting! So while it might alleviate the issue of the tripod and camera being 'lifted' off the ground, adding to the ultimate stability, the lateral pendulum effects in gusting winds remain a significant problem. For that reason, I resort to using a strap hanging down from the tripod, and I STAND ON the strap to make it more difficult for the wind to 'lift' the tripod and camera yet it does so with ZERO lateral pendulum swing.


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