« on: July 24, 2012, 04:52:35 PM »
Ok, camera was off overnight, one battery stayed at 64% the other dropped from 72 to 68%. I'd say normal. Obviously both are used in parallel by the grip.
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Furthermore many of the people saying that the 5D3 isn't that much better in ISO are not comparing the cameras correctly in likely two ways. Camera manufactuers generally make up their cameras ISO ratings out of thin air. There are a few acceptable ways of rating ISO but most manufacturers chose the least regulated ones which so the manufacturer can essentially make up their ISO numbers as they see fit and when the 5D2 was released the ISO ratings were very optimistic to say the least with ISO 12800 being actually around what is commonly accepted as ISO 7000. With the 5D3 Canon has been less optimistic so ISO 12800 is actually a "true" ISO of 10000. The point is that people are comparing cameras using their RATED ISO which are on different scales not ISO measured on the same scale. It's like comparing a car going 0-60 kph vs a car that's going 0-60 mph, which doesn't make sense. The other issue is that after speaking to several Canon Techs and Reps, it seems that Canon specially designed the 5D3 to produce very low noise JPG's for photographers that have to shoot in JPG. Part of the innovation that they introduced was software but they also engineered the hardware to help in the process to make the noise coming from the sensor have far less speckle noise and have a very gausian distribution. This makes computer programs able to distinguish from the noise easier so when you apply noise reduction there is a slight advantage to the 5D3 of around a quarter of a stop more than the RAW data would suggest.
The 5D3 sensor is actually very advanced and has 0.55 stop advantage over the D800 in noise at higher ISO. Due to the fundamental technology that Canon uses in it's sensors, they cannot improve the low ISO performance very much.
I'm not sure if this was present before the new firmware but I've only noticed this after updating to the new firmware.The camera saves your AF settings for each orientation it is in (3 of them all). So, if I have single AF point in Portrait Left but AF expansion in Landscape it keeps them while turning the device. The Pre-selected point keeps the selection of the main point, i.e. if main is expanded then the pre-selected is expanded too and vice versa. At least this is what mine does before updating. I won't update the firmware this time as there is no point of doing it if I don't own the 40 and operate in English.
When using Orientation linked AF point, for example if I select 'Manual Selection: 1 pt AF', turn the camera to shoot a portrait and select a point in the corner then change to 'Expand AF area', turn the camera to shoot a portrait it will go back to the same point but in 'Manual selection: 1 pt AF' even though I've changed to 'Expand AF area'.
I've tried to explain this as simple as I can, hope someone understands what I'm trying to say.
And just want to know has it always been that way?