Everyone likes to shoot sunsets. It's a picture hard to resist but you can run into problems as the light fades.

Some of these problems have to do with questions like: Shall I stop down or open up, speed up the shutter or slow it down? How can I hold the camera steady?

There are four simple and logical steps to take when the light is fading fast and you're so absorbed by nature's display that you tend to forget photographic technique.

First, open your lens. Two stops smaller than the largest opening, such as f/2.8 or f/4, will keep the image sharp and permit you to use the fastest possible shutter spped.

Next, adjust your shutter speed to the opened-up lens. If you are shooting after sunset and your adjusted shutter speed is slower than 1/30th of a second, open up all the way to f/1.4 -- or f/2 if you have to hand-hold your camera. The additional opening-up will enable you to gain another notch on your shutter-speed dial.

Third, set the focus on infinity. You're focusing on the sky and, heaven knows, that's infinity. (This setting saves you time so that you don't have to fiddle with focus.)

Finally -- unless you've had the foresight to be prepared with a tripod -- look around for a way to support your camera. Hold it against the side of a building, a tree trunk, on top of a wall, a fence or even a rock. If you're driving along the highway and stop for a sunset, the window on the top of the car will do. (Just remember to shut off the motor so you don't pick up the vibrations.)

Similarly, if you are on a boat or plane, don't hold the camera against any part of the craft. In this case, hold the camera firmly but not tensely and let your body absorb the vibes. Q. Why is it so hard to find those small 30mm mounts in photo stores? A. The Eastman Kodak people tell me that this may be because stores have to buy these miniature slide mounts in 5,000 lots. The demand for the mounts at this time in not enough to justify the quantity of purchase, so stores don't order this size.

Your best bet is to try large photo stores that would order in bigger quantities, or try photo labs that use these mounts (which are not necessarily Kodak) and buy from them. Q. I own a Konica Auto-Reflex T camera and I have the following lenses: f/1.8 (52mm), f/3.2 (135mm), f/3.5 (28mm) and a 2 x 7 Automatic Tel Converter (Vivitar). Would I be upgrading my equimpent by purchasing the new Konica FS-1 and keeping my present lenses, or should I buy all new equipment? A. As new cameras and lenses are announced one can't help but compare the glittery new equipment with the old tried and true. It sounds to me like you have a good assortment of lenses and that there would be no advantage to trading those in. Certainly you can use them with the new model camera body.

I suggest that you keep the old lenses and the old body and add the new FS-1 to your collection, if you want the convenience of two camera bodies when shooting. You can keep a wide angle on one and a normal or tele on the other. Most pros use this technique because it enables them to shoot faster.

Another thought is to use the old body for a backup in case the new one needs adjustments or repairs. This way you'll have the best of both new and old.