A hypothetical scenario - you choose the camera settings.

[walter23]

f/11 1/100. Extra stop for safety.

[Ole]

Sunny 11 works fine here in Norway, but I use sunny 16 further south. In Eritrea (high altitude, no pollution, sun almost directly overhead) sunny 16 gave a half stop overexposure.

[Ian Grant]

Like Ole I've always used f11 @ 125th in the UK, except mid summer when f16 is better, but here in the Aegean f22 @ 125th is far more appropriate even in Winter sunlight.

Ian

[goldie]

In that kind of light I generally expose 400 ISO at f/11 @ 1/250 & pull the dev a little. I'm getting shadow detail but not getting the highlights too dense. So for this exercise I'd say f/8 at 1/125.
The basic sunny 16 settings I would mostly use for slide film where I'm more concerned with holding highlight detail. With B&W neg we have the luxury of being able to expose for the shadows & dev for the highlights.

[jimgalli]

Move to Nevada. We have the sunny f22 rule about 330 days a year

[Snapshot]

I would probably use an f-stop of f/8 and a shutter speed of 1/500th of a second. This setup will give me adequate depth of field and stop virtually all action.

[DannL]

I now see why I would determine an exposure several stops different than what the Sunny 16 rule defines to get a good exposure. What I've considered to be very sunny in all actuality is quite dark. So, I used a meter to take reference reading under similar conditions which gave me EV 13.5 off the scene directly and EV 14.5 off my hand. I'll bet that seems like nighttime to some folks.

[dpurdy]

Mid summer early afternoon the sun wouldn't be at your back it would be beating down on your head. I would set my camera at 125 f16 and use flash fill.

[mabman]

Originally Posted by Lee Shively

F/5.6 @ 1/1000. Bracket a couple of shots opening to f/4. That's making a lot of assumptions since it also depends on subject matter, subject movement, depth of field desired, type of lens in use and a few other points I forget at the time.

I like this setup if the subject is a person who is sitting/standing reasonably still, as I prefer shallow depth of field for portraits, particularly those taken outside.

A part-time pro photographer told me that for DOF margin of error, f/8 is normally the preferred aperture setting for portraits (he does a bunch of them, and some weddings yearly), but if I can focus properly I like it wider open.

I've shown a few people sample shots with shallow DOF, and they seem to think it's either a Photoshop manipulation or some kind of magic limited to my camera(s) - apparently aperture priority isn't a popular setting on the more automated cameras these days (at least not so the general population is aware of it).

[ic-racer]

Any exposure from 1/50 at f16 to 1/8 at f16 should work.

Why?
You said it is ISO rated so we know there is no under-exposure latitude at ISO 100. The overexposure latitude is determined by the film brand so I am assuming a reasonable 4-stop latitude for excellent prints.

Why 'Sunny 11' as the minimum exposure? With a high contrast lens, I have found that using that as the minimum exposure will give better shadow detail. If the lens is normal or low contrast, the extra exposure won't be needed. Also, you did not say the shutter was accurate, so I would not want to push the under-exposure limit.

Want more?
I can't see your scene but we know how bright the sun is. We also know that there is a 5 stop difference between black and white paint. We also know how bright the sky is (based on the 'open shade' exposure rule). This is about 4 stops less than the sun. So we can figure out in your scene there are 5 stops of range in the sunlight and this overlaps by 1 stop with an additional 5 stops of exposure range in the shadows. This gives you 9 stops. We will take one away because the lens flare etc. So, I would guess the camera will 'see' about 8 stops of luminous range on the film plane. T-max has a range about 13 stops (plus or minus a few). So that is how I came up with a latitude of about 4 stops for excellent prints. Your exposure latitude will be even greater if your scene really does not have a 9 stop range, or if you accept less than excellent prints.