DP-1, DP-11 and DP-12 finders
A problem with the DP-1 and DP-11 is that their light meters cannot be seen in the dark, unless a DL-1 is attached. The DL-1 is now getting hard to find, and expensive. Also, even with the DL-1, it is not possible to see the aperture readings with the DP-11 and DP-12.
I can now offer the following night light modification services.
For the DP-1 and DP-11 :
1) Add three integrated LEDs and a push on/release off button switch so that the meter, shutter speed and aperture readings can be seen in the dark. The nigh lights colour can be user specified, including white. On current drain is 0.5mA, so you can get about 400 hours of continuous use with a set of SR44 200mAH silver oxide button cells. (No loss of power when the night lights are off.) DP-1 modification price is USD 275. DP-11 modification price is USD 330.
2) Add three integrated LEDs, a button switch and an electronic latch circuitry so that one press of the switch will make the LEDs stay on until the advance lever is closed. The nigh lights colour can be user specified, including white. On current drain is 0.5mA, so you can get about 400 hours of continuous use with a set of SR44 200mAH silver oxide button cells. (No loss of power when the night lights are off.) DP-1 modification price is USD 400. DP-11 modification price is USD 495.
3) Add three integrated LEDs, but without the button switch. The LEDs always turns on when the meter is activated. The nigh lights colour can be user specified, including white. On current drain is 0.5mA, so you can get about 400 hours of continuous use with a set of SR44 200mAH silver oxide button cells. DP-1 modification price is USD 220. DP-11 modification price is USD 250.
For the DP-12 :
1) Add an LED so that the aperture readings can be seen in the dark. The night light is activated by the slider at the top of the DP-12. It's in parallel with the top LED. The nigh lights colour can be user specified, including white. On current drain is 5mA, so you can get about 40 hours of continuous use with a set of SR44 200mAH silver oxide button cells. (No loss of power when the night light is off.) The modification price is USD 165
2) Add an LED and an electronic latch circuitry so that one slide of the top switch will make the LEDs stay on until the advance lever is closed. The nigh lights colour can be user specified, including white. On current drain is 5mA, so you can get about 40 hours of continuous use with a set of SR44 200mAH silver oxide button cells. (No loss of power when the night light is off.) The modification price is USD 385
3) Add an LED so that the aperture readings can be seen in the dark. The nigh lights colour can be user specified, including white. The aperture and shutter speeds night lights are always on when the meter is on, activated by the advance lever. The down side is that the top slider and metering when the eyepiece blind is closed functions are lost. The modification price is USD 165
The above prices do not include servicing of the DP-1, DP-11 or DP-12.
