Advantages: Many advantages, see review. Disadvantages: None.
The professional photographers like myself or the high end amateur photographers will probably all have used or tried using some sort of lens filter or another.
Lens filters are designed to screw on to the end of lenses (mainly DSLR) to create different effects, you get many types of filters from the simple UV like this one through to polarizer's and star filters.
This Hama UV filter is mainly used for cutting out the harmful effects that can be had both on your lens and on your images by UV light but they are handy also for the simple task of protecting your lens glass and that is why I for one have one on all my lenses at all times.
If you catch the glass of your lens and scratch it or god forbid break it you are looking at a huge outlay for a new one where as if you have a simple UV filter, it takes the knocks and can be ...
Advantages: All in one solution. Neat and tidy. Disadvantages: Needs setting up prior to installation.
model, designed to get the algae to group together so that they either settle to the bottom of your pond instead of being in suspension. Alternatively, the filter in the FishMate gets clogged with the blighters and you have to clean them off periodically. The water overflows from the first chamber into the second chamber where the filtration is. There are two sponge elements, one for coarse and one for fine sifting. Once through these, the water goes through a biological filter. This consists of special rocks that have a massive surface area in relation to their size. Bacteria naturally breed here and clean your water further. You need to rinse these rocks in a couple of buckets of pond water prior to installation. Don't use tap water as the chlorine does not make a good environment for the bacteria - quite the opposite in fact ...
Advantages: Filters out UV haze, Protects your lens front element. Disadvantages: None
Introduction
Ultra violet filters are probably one of the least glamorous and most mundane photographic accessories around, yet they are an essential part of of your system, and practically all photographers fit them to the front of their lenses and leave them there.
So who makes them?, what are they?, what do they do? and why would you want one? I will try and answer these questions below.
Firstly who makes them?
There are several companies that make filters for camera lenses, but Hoya, "the subject of this review", are one of the biggest and well known brands of filter around.
Hoya was founded in Japan in 1941 and have their headquarters in Shinjuku, Tokyo, they manufacture optical products ranging from laser equipment and photographic equipment to contact lenses, and they are one of the world's leading ...
