well.......some stuff:
- of the chromogenic c41 b&w films, i very much prefer ilford xp2. you will not be able to get decent prints from a c41 lab w/xp2, though (the prints will come out w/an orangish/sepia tint). the kodak version, tcn, will print fine in a c41 lab. i have trusted one hour labs with my xp1 and xp2 for nearly a decade without incident.
- contrast isn't wholly controlled in camera. you can, at the end of the day, only control one portion of the exposure on the zone scale; you can't control both shadows and highlights in camera. the things you should control in camera (during exposure) are your shadow values. your highlight values are controlled in film development. old adage....'expose for the shadows, develop for the highlights'. this does mean, however; you should develop your own. it's fun and easy.
- i, like orie, dislike kodak films. with all films, there are very few exceptions to this rule: the printed speed of films was thought up by a bunch of chardonnay red faced folks. in your photo, if you downrated a bit, your blacks would have been snappier and would have indeed achieved maximum density. as it is, the blacks appear a bit off. i shoot:
fp4 125 at ei 80
hp5 400 at ei 320
panf 50 at 50 and ei 38
- b&w labs do the best they can do in most cases. this means that they adhere to a single set of time/temp/developer/dilution for a particular film. they will process tmax 400 the same for everyone at iso 400. this is where you lose the most control. giving up the ability to develop your own negs will usually result in negs that are printable, but not desirable. unless you have total control of the lighting situation, the subject, and your film, labs are just another processing establishment. developing at home is cheeeeeaaap (i spend 13 cents per roll to develop). i made up the cost of the equipment in one week. i use two developers and it seems as though i've been staring at the same bottles for years; the chems last a long time (this, of course, varies by type).
- k, let's have a look at your photo:
1- eh, crud...had no intention of starting here (i numbered haphazardly). anyway....it appears to be either lens flare or light fall off in printing. if it is the former, use a hood. i keep a hood on my lens full time. if it is light fall off in printing, make the lab techs gargle fixer.
2- this area is the ideal exposure for skin (approx zone 5). i'll come back to this.
3- highlights are mingling a bit too much here. again, i'll come back to this.
4- how do you deal with the blowing out of skies with pan film? use an orange or red filter. i recommend an orange with portraiture as red can do funny things with the face. using an orange filter will give some gray and texture to the sky.
5- the lighting direction here is a bit less than ideal; it's quite uneven and not diffused. this caused an uneven exposure across the face and shadows in the eyes. five solutions: use a fill flash, have her hold a simple ol' piece of white foam core to reflect light back on to her face to fill the shadows, move the model if there is another suitable location, shoot early or late in the day, or move the sun.
ok, back to 2 and 3. if you were to spot meter 2 and settled on the reading (which is zone 5), then spot metered the right side of her face and noted that it was zone 10, what happens? the left side is exposed correctly and the right side is in highlight heaven. if you must take this shot, then in the development process you can correct the zone 10 (3 in the photo) exposure by reducing development. a reduction in development will darken highlights and an extension will brighten them. a chromogenic film would've handled this situation much better, but it still would've been difficult to capture correctly in exposure and you don't have the ability to contract/expand development with chromos.
this isn't the best shot (she's squinting), but this was shot at high noon in the summer in philly:
please to post more questions as they arise; you have a good eye and ambition.
* i do take full responsibilty for any and all butchery of english and incoherency in this post, but do blame extensive travel and beer.