Crasis
Well-known
clintock said:High contrast lenses yield less detail now!? I thought this contrast obsession was something to do with digital cameras and their linear and limited dynamic range compared to film, with it's 'shoulders'.
I'm not trying to argue, I really do want to understand- i thought detail, resolution and contrast were all different ways of describing things that a good lens should have as much of as possible. Weren't multi coatings, aspheric elements and fancy glasses developed to reduce internal reflections at glass/air interfaces for the express purpose of gaining more contrast? Was all that science in vain?
Isn't it more practical to limit contrast with film/developer etc?
It's been a long time since I printed in the darkroom, before the internet was invented and I could know that I might be doing something wrong!
Resolution and contrast are different beasts. It is entirely possible to have a low resolution image with very high contrast, and vice versa. Yes, all modern lenses seek to increase the contrast and whenever the sharpness of a lens is talked about, contrast is brought up.
Take a less sharp image and up the contrast in photoshop and watch it seemingly get sharper. Has the resolution actually increased?
Now.. lets say a lens has astounding resolution and very high contrast. That astounding resolution is going to be pushed to the limits of the dynamic range of the film itself! Even if you can see the detail in the negatives, the highlight detail and the shadow detail, you may not be able to print all that detail! You may have to print with blown highlights or black shadows simply because your paper isn't sensitive in the same way as a negative.
Now, all of this is moot when it comes to colour photography. With colour, you want high high contrast to bring out the vivid and unrealistic colours. It's rather funny, because digital photos tend to be more saturated in colours. Then again, so is agfa ultra. High contrast brings fuji superia to agfa ultra level. So pretty! or something.
You'll have to understand that what I've said is my opinion on the whole contrast issue and why I prefer moderate contrast to high contrast. It is evident from the way lenses are progressing and being bought up, that people love high contrast. I'm just not one of them.