goatsby Posted November 9, 2015 Share #1 Posted November 9, 2015 Advertisement (gone after registration) So my Q should be here early next week and I was digging through my drawers (no pun intended) to see if I had a 49mm filter to use, and found an old Leica UV/IR from my now M8. I remember hearing that these filters are best served at 35mm and narrower. Has anyone thrown an old UV/IR filter on the Q? Any thoughts if it's a good or bad idea? I am going to try it out and see unless someone has a negative experience from doing so.. Link to post Share on other sites More sharing options...
Advertisement Posted November 9, 2015 Posted November 9, 2015 Hi goatsby, Take a look here Leica Q and the UV/IR filter. I'm sure you'll find what you were looking for!
dangorange Posted November 9, 2015 Share #2 Posted November 9, 2015 I put a UV filter on mine mostly to give a little extra protection to the lens, I'd be curious if that's a bad idea. Seems with a fixed lens at this price point, you want to make sure you take some extra precautions. That said, if I found that adding a UV filter might compromise the IQ, I'd take it right off. Link to post Share on other sites More sharing options...
@McLeica Posted November 9, 2015 Share #3 Posted November 9, 2015 I just use a clear nano B+W for protection. Link to post Share on other sites More sharing options...
ricky1981 Posted November 9, 2015 Share #4 Posted November 9, 2015 Another B+W fan, I leave that filter and the hood on all of the time and leave the lens cap at home. I use lens wipes on the filter every few weeks or if it is dirty. Link to post Share on other sites More sharing options...
bernie.lcf Posted November 9, 2015 Share #5 Posted November 9, 2015 I am using a Zeiss T* that was originally made for the Sony NEX 24/1.8. I just had one sitting around. If I were to buy a new one, I'd go for B+W 010 - the simple model. No issues whatsoever and I spent hours comparing with/without filter a few years ago. As far as I am concerned, there is no visible impact other than flare and vignetting on anything wider than 21mm depending on the design of the lens. Link to post Share on other sites More sharing options...
Guest JonathanP Posted November 9, 2015 Share #6 Posted November 9, 2015 The key thing here is the IR block part of the OP's filter - usually this is implemented by several coatings that are spaced to cause destructive interference at IR frequencies (typically the spacing is 1/4 wavelength). The distance (light path) between the coatings is thus critical to the operation of the filter and is dependant on the angle at which the light hits the filter. For wide angle of views the edge performance is likely to deteriorate because of the angle of incidence, one of the reasons that this type of filter is not recommended for wider than 35mm. The simpler UV only filters don't require such complex coatings and can be used on wide angle lenses. I'd echo the advise above and use a B+W MRC 010 or 007 filter for protection - I've found those filters the easiest to clean and apart from watching out for reflections at night pretty much unnoticeable in use. Jonathan Link to post Share on other sites More sharing options...
jaapv Posted November 9, 2015 Share #7 Posted November 9, 2015 Advertisement (gone after registration) An IR/UV is virtually certain to create cyan corners. A B&W 007 protective filter is the way to go. Link to post Share on other sites More sharing options...
bernie.lcf Posted November 9, 2015 Share #8 Posted November 9, 2015 On the UV/IR: we had a smilar discussion a while ago for the Leica X (113). Link to what I said back then: http://www.l-camera-forum.com/topic/245087-leica-filter-for-x-113/?do=findComment&comment=2817612 Link to post Share on other sites More sharing options...
goatsby Posted November 9, 2015 Author Share #9 Posted November 9, 2015 Thanks to all the replied, sounds like a good old B+W is the way to go. Off to eBay for the UV/IR.. Link to post Share on other sites More sharing options...
sturkel Posted November 9, 2015 Share #10 Posted November 9, 2015 I just use a clear nano B+W for protection. +1 Link to post Share on other sites More sharing options...
atsushitko Posted November 12, 2015 Share #11 Posted November 12, 2015 I'm using the Leica13328 filter. Link to post Share on other sites More sharing options...
katsanes Posted November 12, 2015 Share #12 Posted November 12, 2015 I too use the B+W clear filter Link to post Share on other sites More sharing options...
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