I usually shoot Black & White film and do my own developing at home. One day I was reading one of the Film Photography Project's blog entries and saw mention of their C-41 Developing Kit so I thought I'd give it a try. I loaded up a roll of Fuji 200 ISO color print film into my Nikon F, put a 35mm F/2 lens on it and walked around Chicago to get a few shots on a sunny day. I had to buy a new set of chemical bottles to keep the color solutions separate from my usual black and white. Having to heat the chemicals to the appropriate temperature was an extra step beyond the usual B&W process of just adjusting the developing time. But it's most important to have the developer at the right temp for
Haze in an older lens is usually caused by lubricants used on the lens slowly condensing over time inside the lens. Fungus can also cause a hazy look to a lens if it grows evenly in the lens, although most often fungus looks like radiating lines or spots within the lens. How much does haze really effect your pictures? Here's an example of a 1935 Leica Summar 5cm f/2 lens. This had some significant haze that was cutting down on overall contrast and also increasing flare in the lens. I removed the lens elements and cleaned it with alcohol which removed a lot of the haze. It still had a good amount of "cleaning marks" (small scratches caused by cleaning the older, softer glass over the years)
