Archived posting to the Leica Users Group, 2007/09/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I fully agree with you. Most of my filters are Heliopan. One of my free ones was for my 28mm Elmarit. It's fine. Everything above 28mm is fine with the Heliopans as well. Now I have to figure out if I need to replace the Heliopan on my 24mm. Have you looked into the Militch filter holder for the WATE? It's really nice being able to use the original lens hood and 49mm filters. Len On Sep 19, 2007, at 7:35 PM, Henning Wulff wrote: >> http://gallery.leica-users.org/v/LeonardT/M8+Filter/ >> 16mm_WATE.jpg.html >> >> or >> >> http://tinyurl.com/296onu >> >> This is a follow up image to a question George Lottermoser had >> comparing the Leica and the B+W UV/IR filter. >> >> This image is nothing special except it was taken in my backyard >> with a very clear, blue sky. I just received the 49mm leica filter >> from B&H to put in my Milich adapter for the WA Tri-Elmar. The >> adapter allows use of the original, very small lens hood that >> comes with the WATE. I had been using the poor 67mm filter holder >> that Leica sells for this lens. >> >> The lens, M8 with lens detection plus IR set on was set to 16mm. >> The photo was taken with the lens set wide open at f4. My eyes >> tell me there is absolutely no cyan creep. The Leica firmware >> matches the filter just fine. >> >> I have run the same test in the past using the B+W filter which >> shows cyan creep due to the firmware under correction of the >> stronger filter and with the Tiffen filter that shows a beige >> creep due to the firmware over correction due to the weaker Tiffen >> filter. >> >> I hope this helps to answer some of the questions that have been >> asked about the different UV/IR filters. >> >> Len >> > > > I've also tested the WATE with two different filters; the Heliopan > and the Leica. > > Inadvertently I was sent a Heliopan filter, so I wanted to know > whether it was worthwhile to send the filter back and get the Leica > filter I had ordered for the lens or to keep the (much cheaper) > Heliopan. > > I had done the test on lenses of 28mm and up and had found no > difference between Leica, B+W and Heliopan in the final result, > both visually and by measurement. > > With the WATE set at 16 and UV/IR and lens detection on, there was > a difference. The cyan cast was immediately apparent, and when the > center read 50% across all three colours, the corners read 3% down > for red in the corners compared with green (about 39 to 42%, in > this particular case). Visually a difference in 1% is readily > apparent, so 3% is fairly strong. > > So, it's not good enough and I'm going to get the Leica filter. > > -- > * Henning J. Wulff > /|\ Wulff Photography & Design > /###\ mailto:henningw@archiphoto.com > |[ ]| http://www.archiphoto.com > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information