. I became immediately aware that any vibrations from the floor were amplified by the front standard.
Outdoors, I'm less worried about vibrations and more concerned about wind.
A flexible floor can be a huge movement problem. In winter you may only find out after a long wait. I was shooting a large 100 year old weaving loom in an equally old building last winter using only the light coming through the windows. 8x10 RH Phillips camera on a Ries tripod, HP5+, f45+, 26 minute exposure. Only when I developed the negative did I realize that the floor was related to a trampoline.
B&H Photo sells these air bulb shutter releases. On the retake I just set everything up on the camera, walked out of the building, pressed the bulb, waited another 26 minutes in the warm car, squeezed the bulb again and had a picture. The longer Kaiser worked for me. I dont have any experience with the others.
Kaiser Air (Bulb) Release - 16.5'
Samigon Air (Bulb) Release - 20'
Kaiser Air (Bulb) Release - 33'
When outside in the wind, once in a while you can get lucky and use a portable wind barrier. In my current series I shoot near the street and have used my SUV as a shield between the wind and me.
Several years ago I was shooting with Bob Herbst on a bridge construction site, the largest construction in Ohio history, crossing the Maume River in Toledo. We had permission and a minder driving us around in an 18 foot van. When the wind came up to a howl our minder moved her 18 foot van upwind of us, sheltering both Bobs 12x20 and my 7x17.
John Powers