jaapv Posted February 22, 2011 Share #41 Posted February 22, 2011 Advertisement (gone after registration) When I started 35mm photography the filter on the front was needed to cut the over sensitivity of slide films to UV light, especially the Ektachromes which (IMHO) needed a Skylight rather than a UV, I stuck to Kodachrome mostly, and when I got the Leicas I found the UVa was ideal. The filters have been on ever since, maybe the Fuji films would manage without, but they keep my clumsy fingers off the front elements Gerry Since about 1950 all Leica lenses are effectively UV filtered by the use of Absorban as lens cement, or sometimes by special coating. Unless one is shooting on the top of Mt. Everest or in the Andes, UV filters have no function for cutting out UV light. Link to post Share on other sites More sharing options...
Advertisement Posted February 22, 2011 Posted February 22, 2011 Hi jaapv, Take a look here Filters on Leica lenses... compromises in picture quality?. I'm sure you'll find what you were looking for!
SJP Posted February 22, 2011 Share #42 Posted February 22, 2011 Since about 1950 all Leica lenses are effectively UV filtered by the use of Absorban as lens cement, or sometimes by special coating. Unless one is shooting on the top of Mt. Everest or in the Andes, UV filters have no function for cutting out UV light.Slighly confused here Jaap, in another thread you demonstrated that the M8 not only does IR but also UV photography. Was the latter done with non Leica lenses, or is the amount of UV very low so you need a tripod? Just curious. I take your word for it that modern Leica lenses (>1950) do not "need" a UV filter. Link to post Share on other sites More sharing options...
tobey bilek Posted February 22, 2011 Share #43 Posted February 22, 2011 My tests with high rez film indicate 2% loss. The biggest problem is flare from filters. It appears in shots when you don`t expect it. I did drop a 90 2.0 on the filter thread edge. The filter broke, the filter rim bent, but the lens was unscathed. Same with a Nikkor the had a heavy dslr behind it. Destroyed filter and rim, but the lens got a damaged helicle. I got it repaired. Without the filter, the lens would have been gone. Stuff happens. Link to post Share on other sites More sharing options...
Xmas Posted February 22, 2011 Share #44 Posted February 22, 2011 My tests with high rez film indicate 2% loss. The biggest problem is flare from filters. It appears in shots when you don`t expect it. I did drop a 90 2.0 on the filter thread edge. The filter broke, the filter rim bent, but the lens was unscathed. Same with a Nikkor the had a heavy dslr behind it. Destroyed filter and rim, but the lens got a damaged helicle. I got it repaired. Without the filter, the lens would have been gone. Stuff happens. Hi No one ever drops a camera but from the 2nd hand lenses in shops, lots of people hit the filter rims with engineering hammers. Noel Link to post Share on other sites More sharing options...
gyoung Posted February 23, 2011 Share #45 Posted February 23, 2011 Since about 1950 all Leica lenses are effectively UV filtered by the use of Absorban as lens cement, or sometimes by special coating. Unless one is shooting on the top of Mt. Everest or in the Andes, UV filters have no function for cutting out UV light. That may be the theory, but in practice its not what I experienced, Ektachrome without at least a UVa went horribly blue in the hills and on the beaches of the UK! Gerry Link to post Share on other sites More sharing options...
jaapv Posted February 25, 2011 Share #46 Posted February 25, 2011 Slighly confused here Jaap, in another thread you demonstrated that the M8 not only does IR but also UV photography. Was the latter done with non Leica lenses, or is the amount of UV very low so you need a tripod? Just curious. I take your word for it that modern Leica lenses (>1950) do not "need" a UV filter.I used a Summarit 50/1.5 from 1951.... Link to post Share on other sites More sharing options...
Nicoleica Posted February 25, 2011 Share #47 Posted February 25, 2011 Advertisement (gone after registration) My tests with high rez film indicate 2% loss. The biggest problem is flare from filters. It appears in shots when you don`t expect it. I did drop a 90 2.0 on the filter thread edge. The filter broke, the filter rim bent, but the lens was unscathed. Same with a Nikkor the had a heavy dslr behind it. Destroyed filter and rim, but the lens got a damaged helicle. I got it repaired. Without the filter, the lens would have been gone. Stuff happens. I find that good quality multi-coated filters are pretty resistant to causing flare and other unwanted reflections these days. And for those times where you suspect that they may cause a problem, you can easily remove them for a while. I fully agree with you regarding the value of filters as sacrificial lens protectors though. Over the years I've managed to ding a few filters, but never damaged a lens. Link to post Share on other sites More sharing options...
earleygallery Posted February 25, 2011 Share #48 Posted February 25, 2011 All this waffle about filters degrading image quality but not one actual photographic comparison! Will it make a difference? Will you see it? Go on, try it! Link to post Share on other sites More sharing options...
lct Posted February 25, 2011 Share #49 Posted February 25, 2011 Ghost images with a multicoated 'protective' filter: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/124285-filters-on-leica-lenses-compromises-in-picture-quality/?do=findComment&comment=1600012'>More sharing options...
earleygallery Posted February 25, 2011 Share #50 Posted February 25, 2011 No LCT, I thought we were talking about loss of image quality in 'normal' use. We all know about potential for reflections in night photography, especially with shiny reflective digital sensors reflecting off the filter! Now, can you show us an example of a photo under more typical daylight conditions, with and without filters, to demonstrate the awful loss in quality when using the filter? Link to post Share on other sites More sharing options...
lct Posted February 26, 2011 Share #51 Posted February 26, 2011 I don't use filters any more barring IR-cuts with tungsten from time to time. This one was from Steve if i remember well: http://tinyurl.com/6l6bab3 Link to post Share on other sites More sharing options...
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