Nikon RF Shutter Speeds and Measuring
Have been using various Nikon RF cameras over my SLR's after catching the bug about 1.5 years ago. Often use my chrome dial S2 that was purchased and arrived in great shape. Did a minor CLA on it and started snapping photos. I wanted to know how accurate this old camera would be with its shutter speeds and downloaded an App for my phone, but it only used sound and was terrible. However it has the option to purchase a light sensitive plug that goes into the headphone jack so I went for it...
A few days ago it arrived and I decided to begin testing the shutter speeds of my cameras and recording the information. The app does indeed work my measuring the length of time light is exposed to the instrument plugged into the phone.
I decided to setup and start with my S2 Chrome Dial. Using a small and simple LED flashlight, S2 with lens and backing removed and my iphone App and headphone plug. Plan was to take three measurements of each and then calculate an average. I was simply amazed on the results for my S2! Reading more about the App, speeds in excess of 1/250 sec are not recommended. I soon discovered why, as the amplitude of the light wave on the app display is off the screen, making it impossible to select the correct starting and end points of exposure.
Do any others measure and record their speeds? What type of instruments are you using?
See my results below from 1 sec up to 1/250... if my copy/paste from Open Office Calc works here...
Camera Nikon S2 Rangefinder 6142802
Device – Photoplug and iPhone App for Shutter Speed
Date March 25 2019
Notes – Did minor CLA on camera after purchased
Setting Decimal Test 1 Test 2 Test 3 Average Delta
1 sec 1.000 1.100 1.100 1.100 1.100 0.100
1/2 sec 0.500 0.455 0.476 0.455 0.462 -0.038
1/4 sec 0.250 0.208 0.208 0.208 0.208 -0.042
1/8 sec 0.125 0.118 0.115 0.115 0.116 -0.009
1/15 sec 0.067 0.071 0.071 0.071 0.071 0.005
1/30 sec 0.033 0.039 0.039 0.038 0.039 0.005
1/60 sec 0.017 0.018 0.019 0.017 0.018 0.001
1/125 sec 0.008 0.008 0.008 0.008 0.008 0.000
1/250 sec 0.004 0.005 0.004 0.004 0.005 0.001
Ah, copy paste worked...
WOW! Not bad for this old camera. Looking forward to hearing about other methods, results. Anyone else measuring and recording their shutter speeds?
Technological progress is like an axe in the hands of a pathological criminal. AE
Last edited by cwereley : 03-30-2019 at 18:31.
Reason: space columns. preview looked ok, actual post was crammed