vivitar 283: auto dial question

<p>Hi,<br>

The Vivitar 283 has 4 colors corresponding to different f-stop/distances. However, there's nothing for the 20ft/F8. So how do you set the dial for auto exposure?<br>

thanks</p>

<p>Based on what you're telling me, you have the dial adjusted right now to 200 or 160 ISO.<br>

There is no "auto" setting for this 20' mark. You either have to:<br>

A. Actually BE 20 feet away, and turn the dial to "M"<br>

B. Choose the 30' / 5.6 setting, turning the dial to Orange<br>

C. Choose the 15' / 8.0 setting, turning the dial to Blue.</p>

<p>If you absolutely need f8 choose or set your ISO higher or lower than 200/160. Choosing 400 yields the Orange setting at up to 30'. at f8.</p>

<p>Another alternative (I THINK) could be to:<br /> Acquire a flexible Neutral Density filter of +1 stop.<br /> Cut a small section from the filter about the same size as the front 283 sensor.<br /> Turn the 283's sensor to Blue.<br /> Tape the filter over the sensor.<br /> Shoot at F8 at 200 ISO.</p>

<p>The neutral density filter will "stop down" the sensor by one "film speed" allowing automatic operation on Blue at F8 for up to 20 feet.</p>