Guys I’m looking for a new portable light stand for outdoor photography using a Profoto B1 head along with a 3 foot octabox. Something with a large footprint to help keep the light from falling over but also light enough to hike with.
When outdoors and trying to use relatively large soft boxes you are going to have significant wind problems, even on what you may consider completely wind less days. God, and Mother Nature have a sense of humor and anything easily blown down will very likely suffer from this humor when you least expect it. Never use a light stand to hold a flash outdoors, especially if it has a soft box connected, unless you weight and tie down the light stand very well. I always pack long boot laces and Gaffer Tape, and in the last 10 or more years, several hanks of parachute cord (woven miniature clothes line type rope). I buy it at Walmart, but there are other sources. Look for it where string and rope is sold (Paracord is a frequent name for it). It's about 1/4" or less in diameter and has a woven outer surface. A cigarette lighter will melt the nylon ends to keep it from fraying, but if only for one use, don't bother. I always pick the bright orange version, because in use, small cords can be trip hazards at a photoshoot. The bright orange color keeps them easily seen and safer. I would never use the black paracord on an outdoor shoot, as even I would be tripping over it. I use this orange cord and the Gaffer tape, as well as weights to tie down my camera tripods and light stands. I sometimes save the longer cut pieces of the cord, but frequently just trash it and use new the next time out. It isn't very expensive.
On known windy days, avoiding the soft boxes and just using the 7" reflectors, sometimes with a fabric diffuser over the reflector face is my usual choice, but I still weight and tie down everything. I have also used a few of my older tripods as light stands, since their legs can spread and be adjusted for length better, but tripod height when using most tripods as light stands, can be a problem as you usually will want the light much higher than most camera tripods, unless it can be placed on a high rock near the shoot, a picnic table, car, or similar for the needed extra height. For weight to hold gear and tripods down, if there is a source of sand, fine gravel, or water near the shoot location, I frequently take empty sand bags and/or empty plastic 1 gallon milk jugs with me, fill the sand bags with sand or smaller pieces of stones and the milk jugs with sand or water to use for the weights. There are water proof nylon water bags designed to use to weight the legs of the pop-up Sun shades and tents to be filled with water for weight, but the gallon jugs weigh 8 lbs when full and have a handle for easy tying to whatever you wish to hold down. Why carry heavy weights to a remote shoot if the weight can be acquired at the shoot location, and then be returned to where it came from before heading home? Large rocks that are small enough and can be moved (5-30 lb or so) can be wrapped in the parachute cord and become a weight, but again, return it to where it was when the shoot ends. Be open to using anything in shoot locations that will do what you need. Not everything needs to be photography specific and hauled there. Keep your DIY head open and ready to improvise with whatever, wherever you can.
The Profoto B1 heads and big soft boxes that don't collapse for travel easily, can be very expensive and break easily when traveling and in use outdoors. You might be better off using a lower priced light and an easily collapsing new design of soft box for your outdoor photo shoot, as traveling to and from shoot locations, and dealing with wind and Weather can take it's toll on your gear quite rapidly.
I rarely use anything but a speedlite (flashgun) or two when doing outdoor shoots, but have recently purchased three Godox AD200 Pro II lights that will likely be mostly replacing the speedlites (Flashguns) for these outdoor shoots. If the shoot will take place anywhere where there will be people, you will get many who stop to watch. So I always take several different sizes of the 5 way reflectors with me, usually when going to a local park, as it's frequently quite easy to get volunteers to help by holding these reflectors to provide needed reflected Sunlight on my subject, especially easy if the subject is pretty. If at a secluded spot with no onlookers, you may need to take some willing assistants with you. Take the time to train the these volunteers/assistants, as most will want to hold the reflector low and reflecting up at the subject. Sunlight and generally any space lighting source is naturally angled down, so it doesn't look right if the reflected light isn't also directed at a downward angle. For most shots you will want these reflectors held high, at or above the holder's heads, and the reflected light angled at least slightly down at the subject. Get the volunteer/assistant to stand where you would have placed your light, and with the reflector held at the height that you would have placed your light. This will achieve a very similar or better result than you can get by using a big heavy strobe light. If too bright, another 5 way, stripped of it's cover and only the diffuser layer showing, can be placed and held above the "too bright" reflector to reduce it's brightness. On a windy day, holding a reflector in the desired position can be quite difficult, so you will need to take extra shots, hopefully between the wind gusts.
When possible, positioning the subject in the shade of a tree or building, etc. and then reflecting light from out in the brightly lit area will be better, especially during the hot Summer days. If you can't find suitable shade, a large 5 way reflector, stripped of it's outer cover with only the scrim material exposed, and held over your subject will provide diffusion of the direct Sunlight to more evenly light your subject, and your subject won't be squinting in the shots or overheated from standing there in the hot direct Sun (but your willing assistant is going to get hot, so take frequent breaks anyway). Keep in mind also, that when the sky is overcast, but with little to no chance of rain, you will have the largest soft box and light source possible directly above for your photo shoot. Clouds work this way too, but they never seem to be where I want, when I want. You can sometimes get lucky though. Fog does not work so well, usually because it partially obscures your subject, unless floating past above with the Sunlight coming through it, but it can sometimes produce some interesting shots when it drifts by at the right time.
Good luck with however you go about this shoot.
Charley