#1. "RE: SB-25 with Nikon CP990" In response to Reply # 0
Salt Lake City, US
There aren't too many tips I can offer since the 990 doesn't support most of the features of a Nikon Speedlight. I advise not using standby power mode since the 990 can't wake the flash - you have to do it manually. Don't be shy about using the flash's Auto and Manual modes when you can't get what you need using "TTL". Remember that any accessory lens or hood that you use will block the flash sensor window next to the 990's lens. You can work around using flash Auto or manual settings, but there's some trial and error involved.
Also don't forget to use slow sync whenever you can. This mode balances flash exposure with natural light and the results are excellent if the scene can work with a slower shutter speed.
You can manually zoom the flash to adjust coverage since the 990 doesn't support the feature automatically. Bounce flash can often work well, so try it when you can. The nice thing is you can immediately see when the flash techniques are working or not via the LCD and you can make adjustments until you get something that works well.
You were wise to save some money by not buying a new Speedlight like the SB-28 since the Coolpix supports almost none of the advanced features.
#2. "RE: SB-25 with Nikon CP990" In response to Reply # 1
Thanks BJ... that is what I was looking for, I initially planned on spending the bucks for a more modern speedlight but found the SB-25 at such a good price. I used the flash a few times and found different results. I have very little experience using the flash but, I do plan on using it for various situations. And of course now that I know a little more I can experiment with the various functions.
#3. "RE: SB-25 with Nikon CP990" In response to Reply # 2
Salt Lake City, US
Remember that unless you're shooting in slow sync mode, your control over exposure will be only using the flash compensation via your menu selections. In slow sync, both the main exposure compensation control and the flash exposure menus will function.
Have fun with it, it's great not to waste film while you get immediate feedback on how your settings are working...