Protective filter… or not? I say beware of filter quality.

Started Apr 15, 2014 | Discussions thread
John Tait
John Tait Regular Member • Posts: 458
Re: Protective filter… or not? I say beware of filter quality.

Allan Olesen wrote:

Michel J wrote:

Allan Olesen wrote:

heliguy wrote:

I cracked 2 uv filters last year, both Times they saved the front element from damage. So I really don't care @ the iq debate......

I will ask the same question to you as I did earlier in the thread:

How do you know that the filters saved the front element?

I personnaly saved the front element, when my 28-135mm knock a marble floor, attached to my Minolta 9000.

And I will ask for the third time in this thread:

How do you know that the front element was saved?

A shattered filter glass is not a proof that anything would have damaged the front element.

In your case, the filter ring probably did some protection. And as I have written many times before, I think that a glassless filter ring is a good idea because it will add actual protection.

But the filter glass certainly did not save anything in your case. Actually the presence of filter glass will only increase the risk of damage to the front element when you drop a camera. There are several stories of a front element being damaged by shattered filter glass after dropping the camera.

I'll ask in return, how do you know that "the filter glass certainly did not save anything in your case".  We're in an area where I don't know what would count as proof either way.  I had a freak accident where the pointy end a broom handle hit my 135mm Zeiss straight at the front element.  It broke both the lens cap and filter, but the lens itself was not damaged.  You can say the filter "certainly did not save anything" but you have no more proof of this than I have proof that the filter and lens cap absorbed enough of the impact to save the lens.  Real proof either way would require a type of testing no one will want to do so demanding proof is empty.

 John Tait's gear list:John Tait's gear list
Sony Alpha a99 Sony a99 II Sony 16-35mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* Sony 70-400mm F4-5.6 G SSM Sony 85mm F1.4 ZA Carl Zeiss Planar T* +9 more
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