stump4545 Posted June 21, 2014 Share #1 Posted June 21, 2014 Advertisement (gone after registration) i have experienced banding with my MM w/ Sandisk Exteme Pro 16gb cards, in low light at iso 320. I have cured my banding issues by using iso 400 in low light. but from reading these threads is seems that Panasonic Gold SD cards exhibit no banding in low light at iso 320. are Panasonic Gold Cards the cure for the MM banding issue? Link to post Share on other sites More sharing options...
Advertisement Posted June 21, 2014 Posted June 21, 2014 Hi stump4545, Take a look here Panasonic SD cards MM no banding?. I'm sure you'll find what you were looking for!
sblitz Posted June 21, 2014 Share #2 Posted June 21, 2014 Banding is a sensor issue. sd cards are simply recording what the sensor is relaying through the camera's software. Faster cards can copy the info faster and larger cards can carry more info, they do not change the info. My m9 started to band with a green horizontal line in the middle of the SW quadrant. It started as something only evident in bring up low light shots in pp or in using high iso. Finally drove the camera to Leica in NJ, their engineer looked at it and I need a new sensor. Camera is about 3.5 years old and while I use a lot, not nearly as much as pro would have during the same period. While I am getting it fixed, and hoping Leica will cover a lot of the cost, it makes me rethink the value of my M4, built in early 1968, working like a charm, or my M6 built in the 1990s and functioning perfectly. Link to post Share on other sites More sharing options...
wjkotze Posted June 25, 2014 Share #3 Posted June 25, 2014 i have experienced banding with my MM w/ Sandisk Exteme Pro 16gb cards, in low light at iso 320. I have cured my banding issues by using iso 400 in low light. but from reading these threads is seems that Panasonic Gold SD cards exhibit no banding in low light at iso 320. are Panasonic Gold Cards the cure for the MM banding issue? Unfortunately not. They do produce a very regular pattern that can easily be rectified using Dfine 2, but they do not eliminate the problem. ( This is obviously only relevant to those cameras that produces banding in the first place ) Link to post Share on other sites More sharing options...
FrozenInTime Posted June 26, 2014 Share #4 Posted June 26, 2014 Banding is a sensor issue. sd cards are simply recording what the sensor is relaying through the camera's software. Faster cards can copy the info faster and larger cards can carry more info, they do not change the info. You have to think of all the electronic systems in the camera: As various parts of the camera - DC-DC converters, Sensor, Analog to Digital converters , CPU, shutter, LEDs , LCD, SD card etc. power up and start pushing data about there are numerous little and not so little spikes in the battery current and droop in battery voltage. There will be linear regulators that smooth out the large variations, but if there is even a tenth of a percent change in the sensor supply or A-D reference level during readout, banding will show. Leica admitted they made some changes to the MM circuit boards over the M9 ; I suspect better regulation but still not perfect. Different SD cards in particular have different current profiles - faster cards are more likely to store data in parallel producing shorter but larger current spikes. Larger capacity cards may similarly store data to multiple flash ICs in parallel. Slow, low capacity cards are more likely to least perturb the camera's analog circuitry. Link to post Share on other sites More sharing options...
FrozenInTime Posted June 26, 2014 Share #5 Posted June 26, 2014 are Panasonic Gold Cards the cure for the MM banding issue? I have had good success with 8GB gold cards on my M9,M9-P and MM. But I have stopped using my 16GB cards as they seem to produce more banding than the smaller cards. Link to post Share on other sites More sharing options...
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