Erik Gunst Lund Posted October 3, 2013 Share #81 Posted October 3, 2013 Advertisement (gone after registration) Just shot this award winning pic for demo's sake. F/2.8 but will be even softer at f/1.4. No problem as expected. Most fast lenses change the OOF alot when going from 2.8-2.0 to 1.4 Try shooting up closer at say 1-2m with 4-5m to the BG with some grass/straw... Link to post Share on other sites More sharing options...
Advertisement Posted October 3, 2013 Posted October 3, 2013 Hi Erik Gunst Lund, Take a look here Is this an Asph trait?. I'm sure you'll find what you were looking for!
lct Posted October 3, 2013 Share #82 Posted October 3, 2013 ...I believe the doubling is exaggerated at wider apertures... Not for me sorry. Link to post Share on other sites More sharing options...
pgk Posted October 3, 2013 Share #83 Posted October 3, 2013 Looking for a simple solution to an effect which is almost certainly the result of a series of factors is IMHO difficult. FWIW I would personally suggest that the effect seen here is due to the specific oof 'bokeh' which is down to the lens, aperture selected, focus point selected, chroma, added to over exposure of the abrupt highlights behind the 'horizon', in camera and post processing of the image and probably more including subject characteristics - colour and contrast, etc.. Sometimes these factors all add together to produce an unwanted effect, at other times they produce a desirable effect. I find that learning the characteristics of the equipment you use is one of the more pleasureable and interesting aspects of photography, and especially digital Leica rangefinder photography where the photographer has a great deal of manual control and minimal automation. [Which is why I don't take much notice of 'reviews' which come out soon after the release of new gear.....]. Link to post Share on other sites More sharing options...
mirekti Posted October 3, 2013 Share #84 Posted October 3, 2013 No, in this case I simply took your .dng file and developed it for max highlight recovery (and nothing else.) Then I made a duplicate layer in PS and added a Gaussian blur filter with color blending and used a soft brush to remove the offending blue banding. Then merged the layers and simply changed it into a gray scale file to see what it looked like in B+W (since yours was in B+W as your final image.) This is simply great!!! Please include some screenshots what you did in PS next time. I know this is not a Digital processing sub forum, but I believe many would benefit from it. Link to post Share on other sites More sharing options...
01af Posted October 3, 2013 Share #85 Posted October 3, 2013 ... this is the link [...] Umm ... okay, it's not quite as easy as I thought. But CalArts 99 already has provided a good solution. Anyway—the primary reason for the issue with the horizon line in this particular picture is not the lens' bokeh but the overexposure. Link to post Share on other sites More sharing options...
Stealth3kpl Posted October 3, 2013 Author Share #86 Posted October 3, 2013 Umm ... okay, it's not quite as easy as I thought. But CalArts 99 already has provided a good solution. Anyway—the primary reason for the issue with the horizon line in this particular picture is not the lens' bokeh but the overexposure. I agree. This is what I wanted to determine. Not a lens error, or so much a processing error, but an error in capture exposure. I'll be aware of this in future,similar situations. Perhaps if I'd under exposed a stop, the highlight recovery would be cleaner and I can bring up the shadows/mid tones in post. I need to think reversal film rather than colour negative. Pete Link to post Share on other sites More sharing options...
adan Posted October 3, 2013 Share #87 Posted October 3, 2013 Advertisement (gone after registration) The basic problem with the original image is MOSTLY that the sky got blown out - opeator error in exposure. Here is a shot with the 75 Summilux - non-ASPH and known for smooth bokeh. The blurred background develops a hard edge along the ridgeline, purely due to clipping in the sky. "Highlight recovery" is not a magic button - it can help a little bit, but if you need to set it above about 15, the picture was simply too far gone for artifact-free improvement (well, except for CalArts-type heroics!). Set it too high and you recover a bit - right up until the next channel clips, whereupon you get an additional line. Nothing to do with ASPH, nothing to do with bokeh. Everything to do with exposure. 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/213921-is-this-an-asph-trait/?do=findComment&comment=2433790'>More sharing options...
01af Posted October 3, 2013 Share #88 Posted October 3, 2013 I need to think reversal film rather than colour negative. Yes, definitely! After all, digital cameras don't produce negative images (even when Adobe's raw format is called 'Digital Negative'—a misnomer actually). You always need to protect the highlights ... and let the shadows fall where they may. On negative film, the shadows are the highlights—that's why you expose for the shadows with negative film. Link to post Share on other sites More sharing options...
lct Posted October 3, 2013 Share #89 Posted October 3, 2013 Yes and the alledged double lines look like another urban myth so far. Couple of snaps at f/1.4 and f/2 here: Summilux 35/1.4 FLE bokeh - lctphot's Photos Link to post Share on other sites More sharing options...
Erik Gunst Lund Posted October 3, 2013 Share #90 Posted October 3, 2013 Yes and the alledged double lines look like another urban myth so far. Couple of snaps at f/1.4 and f/2 here: Summilux 35/1.4 FLE bokeh - lctphot's Photos Image 7 clearly show the 'double line' tendency in the thin branches upper right corner. The branches are represented thicker than they are and with an almost defined thickness. Not bad but not 'washed out gradually toning out' as some other lenses can do it. Link to post Share on other sites More sharing options...
01af Posted October 3, 2013 Share #91 Posted October 3, 2013 ... and the alledged double lines look like another urban myth so far. Couple of snaps at f/1.4 and f/2 here [...] 'Alleged'? 'Myth'? Seems you have never looked at your own pictures ... Link to post Share on other sites More sharing options...
CalArts 99 Posted October 3, 2013 Share #92 Posted October 3, 2013 It definitely can happen with this lens. But I think as long as one is aware of it, then it's a fine lens and with other characteristics that are worthwhile. Before I bought one I had seen this photo (not mine): http://johnbuckley100.files.wordpress.com/2013/09/thumbs-up.jpg That kind of made me pause. But overall I like the lens although I am more conscious with it in respect to aperture, lighting, and subject matter, etc.. Mind you I use it only on film. And hey, it's finally a Leica lens with a decent hood Link to post Share on other sites More sharing options...
helged Posted October 3, 2013 Share #93 Posted October 3, 2013 Attached is an illustration of an OOF rendering with the Summilux 35/1.4 FLE that is too busy for my liking; the arm, the spoons on the cup in front of the fingers and the white letters on the far end of the booklet are all nervous. The OOF rendering of the background (wall and bike) is, however, ok (photo taken at f1.4, focus distance slightly less than 1 m). Yes, the lens is fine in many respects, but the double-line OOF-rendering can be quite eye-catching and irritating at times. Excellent espresso - by the way - in case someone wonder! 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/213921-is-this-an-asph-trait/?do=findComment&comment=2434083'>More sharing options...
lct Posted October 3, 2013 Share #94 Posted October 3, 2013 Awake me when you'll get visible double lines out of this lens folks. Something like that for instance. Never seen this so far. 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/213921-is-this-an-asph-trait/?do=findComment&comment=2434087'>More sharing options...
lct Posted October 3, 2013 Share #95 Posted October 3, 2013 Attached is an illustration of an OOF rendering with the Summilux 35/1.4 FLE... Interesting thanks. Would you mind to upload the DNG file of your pic? Just curious. Link to post Share on other sites More sharing options...
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