innerimager Posted July 18, 2007 Share #1 Posted July 18, 2007 Advertisement (gone after registration) I just bought a B+W 484 IR filter, 39mm, for my 28/2.8 asph. I didn't even realize that the Leica was available at the same store (B&H), I thought they weren't out yet at stores. So... does it matter in any substantive way? I'd assume not, and that whatever correction the M8 makes set to lens detection+IR filter on would be the same. Thanks .....Peter Link to post Share on other sites More sharing options...
Advertisement Posted July 18, 2007 Posted July 18, 2007 Hi innerimager, Take a look here filter question. I'm sure you'll find what you were looking for!
carstenw Posted July 18, 2007 Share #2 Posted July 18, 2007 For the wider angles it does make a difference, since the Leica filter is a bit weaker. I have a Leica 46mm on my 28 Cron, but I do own a B+W 46mm for my 50 Lux Asph, so I could do some tests... Link to post Share on other sites More sharing options...
AGeoJO Posted July 19, 2007 Share #3 Posted July 19, 2007 Sean did a comparison among three brands: Leica, B+W and Heliopan. Like Carsten mentioned, in general for wide angle lenses, try to stick with Leica's own filters. Link to post Share on other sites More sharing options...
dpattinson Posted July 19, 2007 Share #4 Posted July 19, 2007 Apart from the possible optical differences - the issue I've had with B+W filters has been that the retaining ring in front of the glass is too thick - making the clip-in lens caps you get for some M lenses fall off very easily. In the Leica filters, there is much more thread available for the cap to grip. Probably not a problem for the 28, since I assume you're using the hood. David. Link to post Share on other sites More sharing options...
innerimager Posted July 19, 2007 Author Share #5 Posted July 19, 2007 thanks guys. I've lucked into a good solution. Turns out my 135/4 tele-elmar has a 39mm thread. It also has a hood. I just slapped the B+W on it, and will order the Leica filter for my 28mm. This is such a great forum. best.....Peter Link to post Share on other sites More sharing options...
carstenw Posted July 20, 2007 Share #6 Posted July 20, 2007 I tried the B+W 46mm filter on my 28 Cron, and it has distinctly more blue/cyan corners than with my Leica filter. It is not necessarily objectionable, and it is not very strong, but it is there. I suppose that pros should use the Leica filter at least from 28mm and down, and maybe also serious amateurs. I will also do a test with my 35mm lens. Link to post Share on other sites More sharing options...
carstenw Posted July 20, 2007 Share #7 Posted July 20, 2007 Advertisement (gone after registration) I just tried the 35 Summilux Asph, and with this lens I see mostly a colour difference, not confined to the corners, but overall. The Leica filter is a little redder, the B+W filter a little bluer. This is shooting a white wall wide open, unfocused, in early evening with a cloudy sky, and with the WB set to cloudy. If I had to guess, the B+W comes a little closer with the colour, but since I am shooting DNG, it isn't a problem anyway. It seems that the 28mm lens is the first focal length for which the Leica filter is better, at least in these really simplistic tests I have done. Link to post Share on other sites More sharing options...
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