Ebay filters any good?

What do you think about this one?

http://cgi.ebay.com …iewItem&item=33​0513528807

I want to get 67mm UV or clear protectors for my Tamron 17-50 and Canon 70-200 f/4

trekgod3 wrote in post #11551484
What do you think about this one?

* No UV/'protective' filter can improve image quality on a dSLR.
* All UV/'protective' filters will cause some degradation in image quality.
* The seriousness of this degradation tends to decrease as filter cost increases.
* Good filters will cause degradation that is not noticeable under most conditions.
* All filters, even the best, will cause noticeable degradation in some conditions.

These filters are cheap and nasty. You'd be better off using some cling-film on the end of your lens.

Kenko, Hoya and Tokina are the same company and as far as I'm aware, Hoya and Kenko filters are the same, just branded differently. I use a Kenko MC UV on my walkaround NEX-5 and it's identical to the Hoya version. Not the best, but definitely not cheap and nasty and excellent value as a protection filter.

Whatever quality they are, a $10 filter will almost assuredly be the weakest link for both lenses, especially a 70-200 f4. The f4's are compact enough that you can easily leave the hood on full-time in any bag that's designed for a real zoom lens. It'll protect the front element just as well and not hurt IQ.

Agreed. But you could leave "$10" out of your post and it would still be true. Doesn't change the fact that for those of us who choose to fit protection filters, Kenko are much better than the price suggests - speaking as someone who actually uses them.

Consider getting a Kenko filter here -- http://maxsaver.net/Ke​nko-UV.aspx -- or B+W. I have one on each of my lenses for protection. Well worth the insurance.

This - http://www.cameralabs.​com/forum/viewtopic.ph​p?t=12903 - may clarify. Seems Kenko and Hoya are the same items under different brands. There are, of course, plenty of genuinely cheap and nasty filters and probably loads of fakes out there too.

WORSE... the filter you're considering
BETTER... high quality B+W protective filters
BEST... no protective filter at all

Not another filter thread

it is an alright, but you might see a little IQ degradation. I use Hoya HD series and I see no IQ degradation, they are some of the best filters IMO. Some people will say all filters will introduce IQ degradation, I think they are a bit stubborn, but whatever, everyone to their own.

Those would make great coasters to keep your cold beer from dripping condensation on your nice wood coffee table!

Besides IQ degradation... which ranges from softness, loss of detail to flare, loss of color fidelity and saturation... Cheap filters can cause focus errors.

Besides, it's sort of silly if you think about it. Just how much "perteckshun" do you think some thin piece of glass will give your lens? If you drop the lens and break the filter, there's even a chance that sharp shards of glass will be driven into the front element of your lens, scratching it!

If you don't have it, get and use the lens hood instead. It protects better while shooting (and should even be used when using a filter). When not shooting, well the lens cap will provide the best protection.

There are times and places to use a protection filter... Shooting out in a sandstorm. Or perhaps in salt spray by the seashore. I have good qualty, multi-coated filters in my camera bag, ready to install on the rare occasion they are actually needed for protection.