sclamb Posted October 13, 2009 Share #1 Posted October 13, 2009 Advertisement (gone after registration) In a picture I took when I was trying the lens out, I noticed two things. Firstly that Capture One does a much better job at reducing purple fringing than LR does and secondly, even at f/8 I noticed fringing near the edges of the frame. The following have only been opened in LR and not had any adjustments made. Here is the full picture: And three crops (the fringing is easier to see if you save and look at 200-300%. However it is very easy to see at 50-100% in the full frame). Around trees, roofline, windows and pipe: Around chimney, aerial and windows: Around windows: Is this an expected level of purple fringing at f/8 towards the edge of the frame for this type of lens? Any opinions will be gratefully received. Simon Link to post Share on other sites More sharing options...
Advertisement Posted October 13, 2009 Posted October 13, 2009 Hi sclamb, Take a look here Purple fringing and the 24/1.4. I'm sure you'll find what you were looking for!
wattsy Posted October 13, 2009 Share #2 Posted October 13, 2009 Touch of moire artifacting as well in the last pic. I don't have this lens but wouldn't expect that much purple fringing at F8. What do the C1 conversions look like? Link to post Share on other sites More sharing options...
sclamb Posted October 13, 2009 Author Share #3 Posted October 13, 2009 Thanks for your reply Ian. The C1 conversions still have the fringing but it is less noticeable, albeit still there. Here is the worst area shown in the crops above but from a crop of a C1 processed picture (again with no adjustments made): Less evident than is this one from LR: LR also did something crazy to the window the last picture - it seems to draw these odd patterns on pictures every now and then. Simon Link to post Share on other sites More sharing options...
mjh Posted October 13, 2009 Share #4 Posted October 13, 2009 That’s chromatic aberration (purple/green), btw, not purple fringing. Link to post Share on other sites More sharing options...
sandymc Posted October 13, 2009 Share #5 Posted October 13, 2009 LR also did something crazy to the window the last picture - it seems to draw these odd patterns on pictures every now and then. Simon, That looks like LR 2.5 on a Mac with a G4 or G5 processor - if so, its a known bug. Only way round it to go back to 2.4 Sandy Link to post Share on other sites More sharing options...
sclamb Posted October 13, 2009 Author Share #6 Posted October 13, 2009 Thanks Sandy - you are correct it is LR 2.5 on a Mac G5. However, I always use C1 so it won't be an issue for me. I posted these pictures having processed the DNG is LR as that is the raw processor that Leica supply with the M9. Simon Link to post Share on other sites More sharing options...
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