Back again.
About filters:
Glass filters with colours are a thing of the past IMHO, because today we have a million digital filters in major editing software (free or not) and in plug-ins. I don’t have colour glass filters, although I’ve tried some with lousy outcome, lol:
Even the dog thinks they are boring:
And colour glass filter have a great disadvantage: they will permanently alter the photo (you can't get back normal colours once you use them).
Digital filters, on the other end, are cheap (or free), unlimited, not permanent, easy to use and you can apply them in your home, when, how and if you want it.
Here one pic of my girlfriend in “Cabo da Roca”, the western point of Europe (Portugal, obviously, lol), with a digital filter (day to night):
(hope she doesn’t kill me, lol)
That said about colour glass filters, move on to other glass filter. I have 3 glass filters, one infra-red (rarely used and last month lended to my brother), one Neutral Density 8 (ND8) and one polarizer.
The ND8 only purpose is to reduce light in photos like the flowing water. Rarely use it.
(There was a monster there, below the water, lol, can you see it?)
The polarizer (circular)… well, everybody should have one! Is reduces reflections in surfaces like water, change colour temperature, enhances contrast and is great to turn deep blue some parts of the sky. Cons: reduces light entering and will decrease a bit the speed (longer exposition time), so it is not very recommended for using in action photos unless there is a lot of light. Is most used for landscape shots.
I’m at work now and I haven’t any photos here that have been taken with the polarizer, but I will go lunch home soon, so I’ll bring a few from my home pc.
Now, there is a colour mode in most digital slr cameras that it’s called tungsten. It gives a bluish colour to pics. Some think that it is a filter, and in a way it works like that. It’s very useful in night shots and it can be funny in macro shots with bugs (bugs are already strange, but with tungsten some become even stranger).
A pic using tungsten:
Back to the dog, here is the b#stard again, in a slide:
Trying to spot distant rabbits, lol: