Hi! The following is what P�l wrote long ago about the 645n custom functions.
Antti-Pekka ---- Here are the 645n custom functions: FUNCTIONS: 1) Half Stop Time Exposures Allows you to change shutter speeds in 1/2 stop increments instead of full stop increments 2) Program Shift Allows you to shift exposure by 1/2 stop increments instead of 1/4 stops in program mode. 3) Manual Shutter Speeds In Bulb Mode Allows the photographer to program specific shutter speeds from 4 seconds to 500 seconds (1/2 stop increments) in bulb mode. 4) Half Stop Autoexposure Bracketing Allows you to adjust autobracketing to the following order: 1/3 stop, 1/2 stop, 1 stop (instead of 1/3 stop, 2/3 stop, 1 stop). 5) Adjusting Autobracketing Order Changes the autobracketing order from Normal, Under, Over to Under, Normal, Over 6) Roll And Frame Counter Counts the rolls (from 1 to 99) along with frames shot on a particular assignment in the viewfinder and imprints it on the film (w/data imprint function on). 7) Descending Counter The exposure counter in the LCD panel will tell you how many exposures you have left instead of how many you have taken. 8) Meter Shut-Off Time Change Changes the auto power shut-off from the normal 10 seconds to either 5, 20, or 30 seconds. The bad news is that the custom functions needs to be set at a Pentax service center. It cost the same whther you want one function or all. I have not yet found out how this work. Ie. how to set shutterspeeds in half stops (does the click stops on the shutter speed dial change to half stops - or maybe the up/down buttons are used?), how do you do program shift?, can you change between normal B setting and programable B setting if this custom function is activated- if so how? - and how do you program the duration of the exposure? --- * Antti-Pekka Virjonen * Fiskarsinkatu 7 D * GSM: +358 500 789 753 * * Computec Oy Turku * FIN-20750 Turku Finland * Fax: +358 10 264 0777 *
