Product Description

Neutral Density filters reduce the amount of light passing through the camera lens without changing the color of the scene. They are especially useful in bright light conditions to help prevent overexposure. They also allow proper exposure at a wider lens opening for reduced depth-of-field to highlight a key subject by making the foreground and/or background out of focus.

Product Details

• Brand: Tiffen
• Model: 58ND9
• Dimensions: 1.00" h x 3.20" w x 4.20" l, .20 pounds

Features

• Eliminates overly bright, washed-out images
• Balances exposure
• Controls depth of field
• 58mm diameter
• For use with F-stop 3 on a manual camera; for all film types, color or black and white

Amazon.com Product Description
Reduces the amount of light passing through the camera lens without changing the color of the scene. This filter is especially useful in bright light conditions. Allows proper exposure at a wider lens opening when reducing depth of field to highlight a key subject by making the foreground and/or the background out of focus. A slower shutter speed can be used to produce blurred motion effects.

Customer Reviews

So-so
The only thing this filter is good for is protecting the lens from physical damage (dust, prints, scratches, water spots, etc.) Some say that cheap Tiffen filters degrade the quality of the images, but I haven't noticed any degradation. If you want a filter that will actually improve your images, do not get this filter, go with a circular polarizer or a neutral density filter instead. It's better to crack this filter than crack your lens.

Simple UV Protector
It's just a protection filter. It's does a good work by day though it can create weird flares by night if you are trying to picture below a bright light or if there's one pointing towards you.
It also has a weird glass finish in the edges that make it look cheap (even though it is)

can't beat it for the price
I basically use these more to protect the lens and have never really taken enough photographs without one to know if they make a difference. These can be considered as very inexpensively priced insurance items for your much more expensive lens. I have one of these on every lens I own.