To filter or not to filter?

[w1234ale]

So I know there have been other threads on this but I wanted to get some additional thoughts.

On your Leica glass do you us a UV filter or work without one. I tend to use a filter for protection because I am quite frankly freaked out about anything happening to my front element.

However, over the last couple of days I have been shooting without a filter while I wait for one in the mail for a new lens. I can't help but notice how beautiful the unprotected glass looks and I wonder if there would be affects on IQ.

I expect most of the time I will continue to shoot with a UVa but I wonder about periodically taking off the filter for shoots where I feel it is safe.

As an aside how do you think B&W filters compare to Leica.

 

[Sonnar Brian]

If you do not notice the images being better, keep the filter on the lens.

I have a number of Leica, B&W, Schneider, and Nikon multicoated filters. They are all high quality. The only time to remove them would be shooting bright lights at night, due to possible relfections.

 

[squirrel$$$bandit]

I don't use any filters for anything.

 

[Steve M.]

B&W are excellent filters. The multi coated ones are as good as any others. I stopped putting a UV filter on my lenses because I got flare a couple of times and ruined what would have been excellent shots. Just go w/ a hood now. If I need more contrast, or need to darken the sky a little, I'll put a yellow or orange filter on, along w/ a good hood of course. Any time you put a filter on a lens you're adding another piece of glass and an airspace, so it could possibly add some flare. Some lenses are more prone to this than others.

 

[Sonnar Brian]

I don't use any filters for anything.

You used them on the M8, and the M9 has the filter over the sensor. Otherwise the world would look like this:

 

[phaedrus]

Given the wrong lighting conditions, any filter will negatively impact image quality. I'm not risking it. A hood will protect the front element, plus modern coatings stand up to proper cleaning methods well.
BTW, Brian, what did you want to prove with that woods scene with motion-blurred leaves? I see no IR-Effect there.

 

[250swb]

I think you could spend a lifetime trying to find the 'wrong lighting conditions' that would outwit a B&W MRC filter.

A filter can be more than a filter, mine are lens caps, leaving the black caps at home. Speed changing lenses is increased, as is cleaning because a filter can be wiped with the corner of a shirt, or rubbed with a glove. And they are especially good at keeping rain off the front element, something that usually drives non-filter users indoors for protection.

So if a good quality filter has an effect on image quality the fact I haven't spotted what this effect is in thirty years is a reasonable risk. Certainly more photographs would have been compromised or lost by checking and re-checking the front element, and endless careful cleaning, rather than just getting on with the job before the light changes or people move. I'm not an obsessive lens cleaner anyway, dust having little or no effect, but a filter even encourages me to give it a wipe, so I'm sold.

Steve

 

[jaapv]

BTW, Brian, what did you want to prove with that woods scene with motion-blurred leaves? I see no IR-Effect there.

Huh?😕 This is a typical IR shot. Maybe with some UV mixed in. Did you use a 708 filter, Brian?

 

[Ben Z]

I see now that we're in the post-M8 era, that tired old UV vs no-UV argument has crawled back out from under it's rock.

I don't know which of my older lenses Leica still has front elements for, and which ones are "unrepairable", but in any case given what Leica's lens prices are nowadays, I'll take whatever theoretical trade-off there is to using a modern multi-coated filter. But I have nothing but respect for whoever refuses to use them...just as long as it isn't my lens they're using 😛

 

[roboflick]

old lenses like the collapsible summicron had soft coatings and glass that did not stand up to cleanings, leave a filter on.
Modern leica glass has hard coatings, so unless you take sandpaper to it it should be ok.

I leave a Band W or leica filter on everything, because ive noticed that lenses that had a filter on from the 195o's were pristine, and lenses that didnt have scratches.

do whatever you feel most comfortable with,
Nik

 

[Ben Z]

Modern leica glass has hard coatings, so unless you take sandpaper to it it should be ok.

...or, rather than sandpaper, a single grain of sand adhering to the glass perhaps by static, that in your hurry or perhaps dim light you don't notice, and that your blower/brush happens to miss, and it gets picked up on your microfiber cloth and dragged all over the surface. Ask me how I know :bang:

 

[abumac]

Saver sex, allways!!!!!

 

[Dylan Hope]

I usually mount filters onto my lenses, but my 35 Summicron doesn't have a threaded barrel (I think it's version 2 or 3). It's a bother sure, and I haven't found any A42 filters but I can deal with it. It's a lens from the 60s with no scratches on the glass, so I look after it well considering how time has treated it

 

[richardhkirkando]

If I want to protect my lens, I'll use a hood or a lens cap.

 

[Moriturii]

Like Leica says in their manuals "better to have a clean lens then to have to keep cleaning it"

I always use a high quality UV lens (B+W or hoya), 50 years from now the front element will look like it came out of the Leica factory yesterday.

 

[250swb]

If I want to protect my lens, I'll use a hood or a lens cap.

I'm not sure what your images demonstrate? I'm sure none of my Leica lenses are as marginal in their performance that just adding a filter makes so much difference. It doesn't seem like a test that results in a new rule of photography to me.

Steve

 

[jaapv]

Quite right, Steve. This test does not tell me to avoid a filter, it tells me to avoid that lens. Even the unfiltered shot shows an amazing amount of flare...🙄🙄🙄

 

[I Love Film]

The next time I'm shooting a highly multi-element, wide angle zoom that has a known propensity to flare directly into an extremely bright spotlight, I'll remove the filter.

 

[Ben Z]

Looking at just the spotlight itself it appears the filter also increased overall brightness about 1.5 stops 🙄

 

[ramosa]

I prefer to filter ... if only for the purpose of lens glass protection. That's just my comfort zone.