Want-a-leica Posted June 6, 2011 Share #1 Posted June 6, 2011 Advertisement (gone after registration) Having used my Digilux 2 for a while now, it seems that certain focal lengths produce pictures which are definitely not straight. From what I can tell, the longer the focal length the straighter the picture. Most of the shots I take at 90mm or thereabouts are fine. They might need a minor tweak to get them totally straight, but by and large they're OK. On the other hand, the wider shots often seem to be really skewed and need considerable straightening in PP. It's strange. It's not a dealbreaker by any means; the D2 is my walkabout and backup camera and I like the pictures I get from it (straight and otherwise!). But I have to admit to some curiosity about this. Is there something up with the camera, do you think? Link to post Share on other sites More sharing options...
Advertisement Posted June 6, 2011 Posted June 6, 2011 Hi Want-a-leica, Take a look here Wonky pictures from Digilux 2. I'm sure you'll find what you were looking for!
LKeithR Posted June 6, 2011 Share #2 Posted June 6, 2011 Can't say I've experienced anything like this with my D2... Link to post Share on other sites More sharing options...
krabat Posted June 6, 2011 Share #3 Posted June 6, 2011 Hi Want-a-leica, it is known that the lines are a little bit skewed at short focal length. Nevertheless, I never had the impression that this effect was very strong. How about putting an example into this thread? I can show an example taken in Hamburg with the Digilux 2 at 28 mm equiv. In my opinion, such a distortion cannot be avoided unless you use a shift lens. Best regards, Peter. [ATTACH]261080[/ATTACH] Link to post Share on other sites More sharing options...
lesh Posted June 6, 2011 Share #4 Posted June 6, 2011 As Peter has said it might be useful to post some examples. You can always use the Lens Correction facility in Lightroom to 'straighten things out' to try to sort the problem. If you have some lens profiles you can try the automatic option, but I think that more often than not some final manual adjustments will be needed to finish things off. Link to post Share on other sites More sharing options...
lesh Posted June 6, 2011 Share #5 Posted June 6, 2011 Hope Peter doesn't mind me messing with his fine picture of the Town Hall......but this is how it looks after some manual adjustments using Lens Correction in Lightroom. It's far from a perfect fix, but you get the idea - maybe you can comment on whether that was the kind of issue you had in mind. Of course, this 'solution' has come at a price, in that some of the image has been lost to cropping. It is sometimes possible to avoid the cropping with the help of some of the tools in Photoshop, but in this case I concluded that it wouldn't work to well, at least at my skill level. Of course those who are really serious about accuracy, probably need one of the gizmo's reviewed here ARCA-SWISS C1 Cube a.k.a The Magic Box Peter, sorry for vandalising your photograph. Link to post Share on other sites More sharing options...
Guytou Posted June 6, 2011 Share #6 Posted June 6, 2011 Hope Peter doesn't mind me messing with his fine picture of the Town Hall......but this is how it looks after some manual adjustments using Lens Correction in Lightroom. It's far from a perfect fix, but you get the idea - maybe you can comment on whether that was the kind of issue you had in mind.... Hello, In these photos of architecture, it is necessary to suit much wider during the recording. If we want to get back then the defects of the optics with Lightroom, there will be a loss of image but it will be less important for the subject... Guy Link to post Share on other sites More sharing options...
krabat Posted June 6, 2011 Share #7 Posted June 6, 2011 Advertisement (gone after registration) Peter, sorry for vandalising your photograph. No problem, lesh! Yes, there are some opportunities in various programs to perfrom corrections. As an example, I tried it with PS CS5. Here is the result, although quick and dirty and somehow clumsy. [ATTACH]261111[/ATTACH] Link to post Share on other sites More sharing options...
lesh Posted June 6, 2011 Share #8 Posted June 6, 2011 Peter, good job - much better than my effort, combines much more of the original content Link to post Share on other sites More sharing options...
Want-a-leica Posted June 6, 2011 Author Share #9 Posted June 6, 2011 Hi Want-a-leica, it is known that the lines are a little bit skewed at short focal length. Nevertheless, I never had the impression that this effect was very strong. How about putting an example into this thread?I can show an example taken in Hamburg with the Digilux 2 at 28 mm equiv. In my opinion, such a distortion cannot be avoided unless you use a shift lens. Best regards, Peter. [ATTACH]261080[/ATTACH] Yeah, something like that, but sometimes more obviously off. It's easy to straighten it out anyway, so I suppose it's something to keep an eye on. Not a major issue by any means. Link to post Share on other sites More sharing options...
Overgaard Posted June 6, 2011 Share #10 Posted June 6, 2011 What could be interestin to see is how the Digilux 2 performs at 28mm versus the 28mm Elmarit-M f/2.8 which is very straight. My experience with the Digilux 2 is that I use to hold it straight vertical so as to avoid falling lines. It may result that you get too much top or bottom, but you crop that away and you have the subject with straight lines. On few occasions I've noted lines not straight in the very side of the image, but it's been very little. Link to post Share on other sites More sharing options...
lesh Posted June 6, 2011 Share #11 Posted June 6, 2011 I'm one of those who doesn't always keep the camera vertical, and so the discovery of the Lens Correction feature in Lightroom/ACR seemed to be promising. Since Adobe doesn't offer Lens Profiles for the D2/LC1, I followed their instructions and created my own. I have to say that the results from these profiles often fall short - and of course that could be down to inaccuracies in the profiles I've created. Is there anyone out there who has created their own lens profiles and found them useful, without having to routinely resort to manual tuning? Of course as has been pointed out, the best solution is probably just to leave plenty of space around the subject, and so enable 'painless cropping'. Link to post Share on other sites More sharing options...
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