I'll give you a hint and feel free to PM me with any questions. Have a mental list of locations and shots you want to do with them. It's been my experience (others will disagree I'm sure) that the most important shots are the personal ones done after the ceremony. I realize you said it is going to be outside and a BBQ after. You'll need some time away from everyone else to get some nice personal images. Ask them if it's possible to take 1.5 hours away from the gathering to do this. With all their friends watching, you won't get very good results.
I always scout out shooting locations for these shots. The last thing you need to do is walk out after the service and think, what's next? The ceremony is, in many ways straightforward. Make sure you tell them to take their time with the first kiss at the alter so you can get that shot which is the most important one. Look for some unique angles and have some good views to close relatives. You can get some good emotional shots of them during the service.
Flash is always an issue. I've always felt I could do better and recently started using a foam DIY diffuser (cost $2.00 each) on my AF400T and AF540 (shot manually). It's made a huge difference in softening the flash light and getting better shots.
Something I still do is carry a series of images in a little booklet. I don't use it all the time but it's helpful. The idea is this; the couple want nice images for the album but they aren't professional models. So you can show them a sample shot and say, lets use this location to do this or this. It also helps you remember shots you wanted to take.
Below are a few samples of the wedding I did yesterday. All the spots were scouted out ahead of time and that way I could have a travel route to these places mapped out and a plan. It makes for a much easier day and better shots. You may only have one shot you want from any particular spot but shoot lots. This wedding was just over 1000 images.
Unless you need it, skip the DA*16-50mm. It's a good lens for this type of work but a bit fussy and hard to use. I've owned 2 and although I use it a lot, it's probably the toughest lens I own to use. Frankly the DA16-45mm f4 is the better lens. Faster focus, equally sharp and a lens I have more confidence in. For the church shooting, I use a DA* 16-50mm but prefer a Sigma 28mm f1.8 EX and the FA50mm f1.4 combo. They both focus faster, work better in low light and offer much better control. The 17-70mm will be fine for wide shots and portraits. You'll use the 70-200 a lot more than you might think. It's huge advantage is being able to take candid's without anyone noticing and getting away from the couple so they are more comfortable. If they enjoy themselves, you get natural shots more often. Most of these were done using the Sigma 70-200/K20D or *istD. A good intimate portrait might not work well if you are 6 feet away with the camera. Standing back lets them forget you're there.
Sigma 105mm Macro (a good portrait lens too)
FA*300mm f4.5
Pentax DA*16-50mm
Sigma 70-200 f2.8 for the next 2
Last edited by Peter Zack; 06-28-2009 at 06:14 AM.