etarbar
Member
Hello, sir. I'm Kelvin from Thailand.
This is my first post here. (I've gained a lot of great info from here for several months though)
I purchased from ebay a lovely set of Nikon F2 (7698847) , photomic dp-1 (625209) and Nikkor Ai 50mm f/1.4 (3797595). They looks great and works like a charm, except the light meter. It always suggest to use high speed shutter and small aperture even there is no light going through the lens.
May I trouble you and ask some advice as I tried to fix it?
With correct battery, the needle stay in the middle when check batt button is pressed.
With lens cap on which block all light to get inside the lens, iso 200, shutter 1/125s, aperture 5.6, needle goes at about +1 over exposure.
With lens cap off and I shine direct light into lens, same camera setting as above, needle goes further to over exposure side.
I found pdf of "Nikon DP-1 meter adjustment and cleaning procedure
By Glen Walpert, May 1999" and I followed the guide. I took it apart and cleaned every contact part including resistor ring as best as I could and reassemble back. The error of the meter still the same.
I separate the bottom half and found that I can adjust Cds bright trim to 70 ohm, but dark trim I can't make it over 140k ohm, the 200k resistor give about 150k ohm.
Both Cds cells give ohm that respond to bright light and low light but I forgot to note the figure.
Which part that caused this error?
I found on ebay "a brand new old stock Replacement Resister Ring for Nikon DP-1 finder. part number is 20FD11-H5"
Can this part fix this problem?
I've tried my best to get this legend F2 set to function properly as my best friend has seeking for this set for a long time. I ran a roll of film to test its function (using my Olympus Pen D3 that I fixed its dead meter by changing new wire as an external light meter). The result was great with proper exposure. Double exposure function and timer also works precisely.
I hope that you can spare some knowledge and help me to overcome this issue.
Thank you in advance for your kindly support.
This is my first post here. (I've gained a lot of great info from here for several months though)
I purchased from ebay a lovely set of Nikon F2 (7698847) , photomic dp-1 (625209) and Nikkor Ai 50mm f/1.4 (3797595). They looks great and works like a charm, except the light meter. It always suggest to use high speed shutter and small aperture even there is no light going through the lens.
May I trouble you and ask some advice as I tried to fix it?
With correct battery, the needle stay in the middle when check batt button is pressed.
With lens cap on which block all light to get inside the lens, iso 200, shutter 1/125s, aperture 5.6, needle goes at about +1 over exposure.
With lens cap off and I shine direct light into lens, same camera setting as above, needle goes further to over exposure side.
I found pdf of "Nikon DP-1 meter adjustment and cleaning procedure
By Glen Walpert, May 1999" and I followed the guide. I took it apart and cleaned every contact part including resistor ring as best as I could and reassemble back. The error of the meter still the same.
I separate the bottom half and found that I can adjust Cds bright trim to 70 ohm, but dark trim I can't make it over 140k ohm, the 200k resistor give about 150k ohm.
Both Cds cells give ohm that respond to bright light and low light but I forgot to note the figure.
Which part that caused this error?
I found on ebay "a brand new old stock Replacement Resister Ring for Nikon DP-1 finder. part number is 20FD11-H5"
Can this part fix this problem?
I've tried my best to get this legend F2 set to function properly as my best friend has seeking for this set for a long time. I ran a roll of film to test its function (using my Olympus Pen D3 that I fixed its dead meter by changing new wire as an external light meter). The result was great with proper exposure. Double exposure function and timer also works precisely.
I hope that you can spare some knowledge and help me to overcome this issue.
Thank you in advance for your kindly support.
