Lens UVA filter

[Guest Mr. B]

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I always use a filter. It is easier to replace a scratched filter than a scratched lens.

Mr. B

[paulsydaus]

Good points.

I believe that's what Leica do with some of the S lenses. They build a filter in which is presumably possible to repair/replace if necessary rather than a front element. So those lenses are meant to be used freestyle.

This allows them to include the filter in the optical calculation of the design. Sounds pretty smart to me...

 

 

Thanks for all the replays, I think over this filter protection thing, I decide to remove my filter whether it flare or not. it will get minor imperfection over the time, but now I think it over it is the way we should be using it, if not then Leica should including filter in the package in the first place.

 

 

 

I think if you always put it on filter then you probably never use it without filter, and you only keep this perfect condition for the next owner.

[Berth]

I always use a filter. It is easier to replace a scratched filter than a scratched lens.

Mr. B

 

I have already scratched filters. I've never scratched a lens.

[leica1215]

I have checked on my leica filters seems on the filter flare a bit more than the front element on the lens, not sure if it is because the anti reflection coating not as well as the lens? if so then it must effect the quality of the picture taken through the filter isn't it??

[Berth]

I have checked on my leica filters seems on the filter flare a bit more than the front element on the lens, not sure if it is because the anti reflection coating not as well as the lens? if so then it must effect the quality of the picture taken through the filter isn't it??

 

I'm not getting flare in the vast majority of my shots with the Heliopan filter on my 50mm Summicron. Of course I use the hood religiously, and am careful about the direction of the light.

[leica1215]

I have compared leica filter with B+W MRC Nano one, the B+W multi coating looks less reflective compare to leica one.

[RoySmith]

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I have compared leica filter with B+W MRC Nano one, the B+W multi coating looks less reflective compare to leica one.

 

 

I use the B+W MRC Nano Clear 007 XS Pro filters. My understanding is that UV doesn't affect digital sensors like it does film so, if protection is your primary goal, clear is the simplest. My older filters did not have the nano coating, which makes the filters easier to clean.

Roy

 

 

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[Bill W]

I always use a filter and most are B+W.

[Chuck Albertson]

During the rainy season (i.e., nine months of the year) I tend to use a UV or K2 filter, as I wind up wiping a lot of water off the front of the lens. The new Hoya HD2 UV filters are a bit pricey, but water beads up on them and rolls off, they're multicoated to cut down on reflections, and are quite tough.

[stevesurf]

As Hoya has a coated version, B+W also has the water repelling Nano coating; here's an interesting video clip showing how effective it is:

 

 

If you'd like a less than scientific, yet entertaining look at the discussion, check out one of Kai's videos

 

[jbl]

On the cleaning question, I've usually cleaned my filters with a Lens Pen. I've never actually needed to clean a lens before and I've been willing to sacrifice the filter to any damage the Lens Pen might cause. Anyone have any experience with Lens Pens?

 

-jbl

[Malvolio]

My completely unscientific testing on a 50 Lux has suggested that the B+W filters are better than the Leica branded ones. I.e sharpness particularly. They are cheaper too..

 

 

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[bephoto]

I double your unscientific test. B+W causes less flare because they have a superior multi spectrum coating and more scratch resistant. Zeiss T* filters are also really good and cheap