Iso 50 effect?

[ccb]

Hi,
The lowest ISO on my camera is 100, but I would love to achieve the super crisp and detailed effect of ISO 50 Agfa film. I was wondering if there is anything in post production (I have elements 6) that I can do in order to achieve this?

Thank you

Cecilia

[teaking]

I could very well be wrong... and it wont be the last time haha but I dont think you can achieve this through PP as your digital camera does not capture as much range as film and its the range in highlights, midtones, shadows that give detail. And you cant really add that information to an image. its not really the ISO thats having that effect its the amount of zones in a gradient scale that film can capture vs digital.

You can play with curves and colour adjustments to add more contrast to give the effect of detail. Or you can blend exposures to give a greater dynamic range. Fingers crossed someone has better info

[BCampbell]

So you're looking for less noise and sharper details.

You can do those things in post processing, actually. The problem is, you can't exactly do them both at the same time. Denoising necessarily tends to reduce sharpness, and sharpening necessarily tends to pronounce noise.

The good news is you can definitely increase the detail and quality of your ISO100 photos by learning to use noise reduction and sharpening tools, and knowing when to use them and to what degree. It's absolutely valuable knowledge, even fi you can't replicate ASA50 film.

[inkista]

Digital pull-processing. It's the reverse of the push-processing you can do to increase the iso past what your camera can do with gain across the sensor (and is what is done in-camera to achieve the higher iso levels). In push-processing, you underexpose when you're shooting, and then push the exposure lighter in post. Pull-processing is the reverse. These techniques are less effective the larger the range you're attempting to move the exposure in post, so I'd recommend not trying for more than a stop. (I.e., going for iso 50 while shooting at iso 100 is ok. Going for iso 25, probably not).

Basically, shoot RAW, and expose to the right. Try not to blow out any highlights. But expose as if you were shooting with iso 50 (i.e., 2x the shutter speed your meter's telling you). Then, in RAW, adjust the exposure downwards by a stop. Should reduce your noise.

[ccb]

thank you guys, plenty of food for thought, i will check it all out!