by Bart Arondson

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Great! You told us what camera you are using!! So, maybe reading a bit about the exposure triangle might be able to help you out a bit. I found on Wikipedia that the XA2 was a 35mm ƒ/3.5 lens. Are you using the flash at all? It could simply be that the lighting environment is too low/poor and it's using a slower shutter speed. Perhaps if the lens were ...


The "faster" films work by having larger grains of photon-collecting chemicals. This has two effects: you get the same exposure with less photons hitting the film compared to "slower" film, and because of the larger grains, the image will be more coarse. If you don't make large prints, the second effect may be unnoticeable. Effectively you have to test ...


I also think that it depends on the camera. Factors include the bit-depth of the A/D, the various sources of noise, and unknown details. With all the theory requiring possibly unknown parameters even if the model is right, the only thing to do is a real test. Assuming the histgram fits completely in the exposure so you aren't deciding which end to cut ...


It depends on the properties of the sensor in your camera. Raising the ISO setting means you amplify the signal before reading it out, this means your signal level is higher and thus read noise is lower relative to the signal, improving the overall signal to noise ratio. However Sony Exmor sensors (found in all NEX bodies, and many current Nikon/Pentax ...

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