Set exposure without a meter, sunny F16
Thursday, August 14th, 2008
There are many great vintage film cameras out there that can be found at very affordable prices. One with a particularly good lens for its price is a Konica Auto S2. The Konica Auto S2 is a rangefinder camera with built in meter and shutterspeed priority auto exposure. Unfortunately, the sensors in these cameras are reaching an age where they stop working. Mine failed while in storage. I now have a camera in mint condition, with maybe 200 rolls of film, and no meter. This camera might bring at most $30 or $40 on eBay. I thought of selling it, but it was my second camera and my first new one. I’ve owned it now for over 30 years.
The Konica S2 lens is highly rated and the shutter works just fine without a battery in manual mode. So the thought occurred to me to see if I could use it with the Sunny F16 rule. When shooting outdoors, set the shutter speed to the films ISO rating and the aperture at F16 for bright sunlight. This would make the Konica a poor man’s Leica, (most Leicas never had meters).
That is easy. But what about some clouds? Open 1 stop for some, 2 stops for overcast, 3 stops for twilight/heavy overcast, 4 stops for dusk/deep shadows. Thinking of it this way is much easier for me to remember than the F stops for each. It also makes it easier to set the camera up for a different shutterspeed.
Let’s say we are using 100 ISO film. If we set the shutter speed to 1/200 (or 1/250, we are approximating stuff here) then we start one stop more open than F16 to F11. The faster shutter speed has to be compensated with one stop more aperture. Let’s say the sun is starting to set, there are a few clouds, our guess is F4 (F11 - F8 - F5.6 - F4, 3 stops more open). Especially with print film, this is pretty close. Bracketing, one more open, one more closed (F5.6, F2.8) should ensure one very well exposed shot.
That is the theory. Now, if we have a light meter or a camera with a meter, we can practice. Indoor lighting is very hard to judge, but judging outdoor lighting by eye can be done with practice. See a picture, guess your exposure, check it with a meter. When you become proficient at this, you will be able to set the camera very quickly within one stop. Slide film would be less forgiving of any errors, but print film should produce very good results with this method, and allow you to use cameras with outstanding lenses (the main factor in image quality), cameras that are very affordable, and typically much more durable than new point and shoot cameras that are four times the price.
Rangefinders are particularly sought after for street photography, and the 45 mm lens on the Konica is also very nice for this purpose.
- the Muse
Most of the pictures from this shoot I converted to black and white. This allowed me more lattitude to salvage some detail in deep shadows without worrying about funny colors appearing. But this picture of Kat with Orchid Pool only worked in color. It used to be that you had to choose BW or color and even the ISO (or ASA) before you shot with film. But the digital darkroom provides greater flexibility after the image is taken.

