Tight filter, but not useful for standard IR-filtered DSLR
597690
I tried this filter at all sorts of extreme settings with Canon 40D, and found that the gap between what this lens passes, and the cutoff of the internal 40D IR filter leaves very little light left over even at 60 seconds or more exposure.
Bright sunlit scene at 15 seconds is recognizable.  I was planning to have the IR filter removed from my 40D, for astrophotography, we'll see how much more I get after that.  With those exposure levels in sunlight, taking pictures of stars would have been multiple hour exposures on a telescope, for multiple nights, to see something.  Pointing the camera directly into the sun got exposure times in the 1/100 range for 50% saturation, but had glare all over the place.
I calculated that we lost about 11-12 f-stops with the two lenses together.
There is no graph provided with the lens, to see what the start and stop band, and how much the passband has.
I don't know what the pass band is for the Canon, but as this camera is designed for visible light, I didn't expect a specification.
I also tried holding the lens in front of SD1200is, and actually got some slightly better exposures.  Probably a cheaper IR filter in that camera.
4662751
I bought this thinking I could use my plethora of 77mm filters on my 50 1.4 and 85 1.8. Apparently this product takes a 77mm lens and allows you to place 58mm filters on it. Why!?
1724479
My filters are all 77mm. For my situation, this is much bulkier than it could be. But the most important things:
When closed, there's a pretty large gap between the filters and the flap. Can't close this gap further, since the velcro surface area is pretty small.
The velcro surface area of the top flap is way too small. Too easy to accidentally open and drop all your filters.
The belt holder can also be more secure. Again, the velcro surface area here is also too small. I accidentally dropped the whole case when swinging my arm, hitting the case.

Would be great if Tiffen produces smaller case for 77mm max, and the above design flaws fixed.
1053059
Great lens, but the mount almost does not fit in my Olympus EPL6. It is too tight and not smooth. The metal grinds together liek the wheels on the NYC subway.
1537453
I bought this item to use with my Sony DSC HX1 and it works well with the unit.  The unit is screwed directly to the body of the camera, rather than to the lens.  Hence it does not extend when the lens moves out when taking a telephoto picture.

I had hoped to use 72 mm filters such as the Polaroid and ultraviolet filters.  These fit well on this hard lens hood, but adding the filter means that the hood now will restrict a wide angle view slightly.  Not a big problem, but one should know about that.

A more serious proglem when using the filters is that when the HX1 lens is extended all the way out in its maximum telephoto setting, the lens will extend about a half inch beyond the filter, as the hood is attached to the body of the camera and hence does not move with the lens.  I've not tested it, but I would assume that this could damage the telephoto mechanism.  Hence if one uses the filters, they should be very careful not to use the telephoto beyond the mid-range.

A preferred solution would be to have the filters attached directly to the lens.  However the lens body does not have any threads on it and hence screwing a filter to it is not an option
2918700
It is impossible to clean DSLR matrix with that stuff. It cannot fully remove dust.
553852
These are great filters. Well work the extra bucks. However, there are several different styles of each type so read up very carefully to understand what you are getting. Some features are not needed by all cameras. For example, the low profile XS-Pro is MANDITORY for wide and ultra wide angle lenses on full frame sensor cameras but totally unnecessary on the smaller APS-C sensor. Do some research.
4829047
No options to change aperture on newer lenses makes this for the niche buyer, or someone who wants a cheap adapter
2668500
When connected to my 28-70mm 2.8 Sigma with 67mm filter size, the light is too small in diameter and occludes part of the image.  God help you if you are using a 77mm filter size lens.
2403353
The price on Amazon is what makes this Tiffen 82mm filter a good deal. Most professional photographers were not pleased to learn that Canon had upped the diameter of its relatively new 16-35mm f2.8 lens to 82mm, which makes it incompatable with the mostly 77mm diameter L-series lenses in the Canon lineup in terms of filter use.
Bottom line: Buy this product so that you protect the glass surface of your expensive lens, which will cost a heck of a lot more to replace than a filter.
4165381
The anti-fog inserts seemed to keep the camera from fogging up when diving, although I had problems with fog when I was sailing. The filters are too fiddly to manage and generally seemed useless to me.
3648880
Don't like having to use this to fit a filter to, Canon need to go back to the drawing board so consumers don't have to buy extras in order to use filters. Shame!
3192883
This is one of a number of filters I picked up for a friend who wanted experiment with filters, but at a minimal outlay.
The Citiwide is has a standard frame it's not low profile but that's not likely to cause problems except with lenses than are wider angle or have some natural fall off/darkening it is correctable to a degree in post processing.

Onto the filter this is firmly in the "bargain basement" area and as such there are some compromises firstly the main element isn't glass it's a composite plastic/acrylic material this isn't a massive problem but do take a bit more care with handling it's not overly prone to markings but sharp objects and damage it. Being an ND 8 filter we have a total of 3 stops light reduction, this is a fairly common ND filter the other being an ND16 and ND32 (which have 4 and 5 stops light reduction) you can go all the way down to 13-16 stops light reduction but these are generally used for daylight shooting where very long shutter speeds are required.

A few uses with this filter one possibly not as obvious as it should be, if you are using a camera (or flash ) that can't sync a flash at high speeds (ie say 1/200 sec max sync) then this is a very handy filter to have as it will allows you to "bring down" the daylight shutter speed and possibly into the flash sync range you might have to adjust the aperture a little but fill flash in daylight should be possible (stick to the lowest ISO value) the other use is for slower shutter speeds to enhance movement such as water flowing or people walking etc. Viewfinder will be a bit dimmer but not massively so, and AF will work without issues bar ultra low light levels. It's not a filter you will use all the time, but it's worth having a few around. I didn't notice any optical degrading whilst testing the filter, though there is a bit of a colour cast present (not unusual only the more expensive ND filters avoid this) considering the very meagre outlay there isn't a lot to complain about. A reasonable choice if you're on a very slim budget.
2523510
If you have several large size filters you can put them on smaller diameter lenses but keep in mind you may loose the use of your lens shade.
4328987
I should have checked the availability of the equipment inside my Nikon d5200 before I bought this it has built-in filtering this is kind of a waste of money for me
96888
I'm not too happy with this supplementary lens.  I don't think it is multi-element, and there's unacceptable distortion and blurring at the edge of the image. Fun for the money though.  I use it on a Canon SD400 Powershot.  Also very easy to drop, lose or break.  Always keep it on a tether attached to the camera.
2526584
I really wanted to like this filter. I was planning on using this to replace the stock filter on the Fluval Chi, but quickly learned it wasn't going to work out. While the filter is certainly larger than I expected, there were a couple of configurations that worked OK. It certainly helps that the spray bar can swing 360 degrees as can the direction of the nozzles. This alone gives it some flexibility. I also saw the many complaints about the noise, but looked up a fix online and managed to make address that issue. There is, however, one issue that I simply could not live with. The top and bottom pieces are very easily separated. While trying to set it up, I must have knocked the media cup off the pump housing a dozen times. This is when I realized that media changes were going to be a nightmare. It probably would have been less of an issue on a larger tank, but with the 5.5g Chi, it was very difficult to get the media portion off, rinsed, and back on without knocking over plants and stressing out the fish.

To get a better rating, I'd:
- Improve the connection between the upper and lower housings.
- Possible add a locking mechanism to prevent it from disconnecting.
- Make it a little bit smaller and a little less powerful to make it more "Nano" friendly.
- Fix the noisy impeller to make it quieter out of the box.