jschweigl Posted March 16, 2003 Share Posted March 16, 2003 I've used the noct for the first time at daylight and have consistent vignetting on all the frames I shot at f 1. I attached an example picture. I've read about vignetting here but never saw it actually. Quite strong. Is this normal or has my noct got a problem? Link to comment Share on other sites More sharing options...
terry_rory Posted March 16, 2003 Share Posted March 16, 2003 I am not sure why one would want to use f1 in a street scene such as this one in broad daylight unless you wanted to remove a nearby subject from the background. However that's neither here nor there. This is Vignetting with a Capital V and I would have been disappointed to see it on a 30 year old Olympus Trip 35 let alone a £1700 lens! I assume no filters or shades were employed. I have been looking again at Tony Rowletts Noctilux page and can see none of this bad behaviour on his pics. It must be your lens. http://www.alaska.net/~rowlett/noctilux.htm Link to comment Share on other sites More sharing options...
jschweigl Posted March 16, 2003 Author Share Posted March 16, 2003 I had no real reason to use it during daylight, just was curious to see how it looks. And I wanted to get that PAN F+ out of the camera. No filters, but I used the builtin lens hood. Seems it will get a trip to Leica. Link to comment Share on other sites More sharing options...
james_.1 Posted March 16, 2003 Share Posted March 16, 2003 I believe I've seen vignetting pretty darn similar to yours before, on this photo of a bldg. during the daytime, and the photog noted the vignetting as a characteristic of the lens. I don't have the web address though. May be normal? Link to comment Share on other sites More sharing options...
jschweigl Posted March 16, 2003 Author Share Posted March 16, 2003 Hm ... checked Tony Rowletts page too, could it be that the images are cropped? Mimi II, Eric II and Andy show pretty the same symptoms, maybe not as strong, but noticeable enough. Link to comment Share on other sites More sharing options...
john_collier2 Posted March 16, 2003 Share Posted March 16, 2003 The vignetting is perfectly normal. It is designed that way to eliminate some nasty skew rays when the lens is wide open. If you look at the front element, it is recessed significantly more than other normal/wide lenses. The wide open vignetting is one of the Noct's signatures. Link to comment Share on other sites More sharing options...
wind.dk Posted March 16, 2003 Share Posted March 16, 2003 Looks pretty much like the vignetting on all other Noctilux pictures I've seen on the web - with reservations for the effects of development, scanning and differences between monitors. Link to comment Share on other sites More sharing options...
john_collier2 Posted March 16, 2003 Share Posted March 16, 2003 PS: Some like it and some don't... Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted March 16, 2003 Share Posted March 16, 2003 An F1.0 lens for a 35mm 24x36mm still camera will always have vignetting. If the same lens is used on a 35mm or 16mm motion picture camera; or if the Leica image is cropped; the vignetting is alot less. Link to comment Share on other sites More sharing options...
fotografz Posted March 16, 2003 Share Posted March 16, 2003 Day or night, the Noctilux vignettes when shot wide open at f/1.0. Your example is a bit flat in contrast, and I suspect it may visually be exaggerating the effect slightly. Used during daylight it is great at helping isolate a subject from the background, especially when shooting something that isn't really close to you like the "Alert Retailer" shot I posted here. This picture was slightly cropped in from the left, but the upper and lower right side shows the vignetting from shooting the Nocti wide open.<div></div> Link to comment Share on other sites More sharing options...
fotografz Posted March 16, 2003 Share Posted March 16, 2003 When shot at night (what the lens was designed for), the vignetting is still there but not as noticable due to all the darks in low light images.<div></div> Link to comment Share on other sites More sharing options...
eliot Posted March 16, 2003 Share Posted March 16, 2003 Johann. I see nothing to indicate anything wrong with your particular lens. The noctilux has approximately three-stop vignetting center to corner at F/1.0 If you look at the light falloff diagram for this lens (it is in the booklet on current Leica lenses by Erwin Puts), at 21 mm from center (which is in the extreme corners), the relative illumination is 12.5% or so, which is three stops. The relative illumination in the corners increases significantly as the lens is stopped down, which is why street scenes like this should not be made at F/1.0, except as a test. Link to comment Share on other sites More sharing options...
frank_horn Posted March 16, 2003 Share Posted March 16, 2003 I'd bet that stopping down to f/1.4 would noticablly decrease vignetting. I've never used the Noct, but wide-open Noct shots on the forum seem to show this amount of vignetting. Leica should include instructions with each Noct that advise owners of this characteristic. One thing I note is the background being out of focus. This shot, even with vignetting, would have looked better if the focus were set at infinity, or close to it. Link to comment Share on other sites More sharing options...
adrian_tyler Posted March 17, 2003 Share Posted March 17, 2003 my 35 sumilux asph vignetts wide open too, i quite like it asthetically. Link to comment Share on other sites More sharing options...
cabophoto Posted March 17, 2003 Share Posted March 17, 2003 Johann, my Noctilux vignettes just like yours. That´s perfectly normal and has been described many times in books on the Leica M system (and of course by Erwin Puts). Carsten http://www.cabophoto.com/ Link to comment Share on other sites More sharing options...
manu_vermeiren Posted March 17, 2003 Share Posted March 17, 2003 My Holga has the same problem. Link to comment Share on other sites More sharing options...
jschweigl Posted March 17, 2003 Author Share Posted March 17, 2003 <p>Thanks to all, I'm relieved now. I simply haven't seen this phenomenon in all its glory before as I always shot in available darkness. Think I'll keep using the noct at f1 what it is designed for. Stopped down a little, I do like the corner falloff somehow. I posted a picture in the "No words: walking" thread that must have been shot at f1.4 or 2.</p><p>@manu: yep, my Holga does pretty the same and I really love it for that<br><br><center><a href="http://www.photo.net/photo/1212832&size=md"><img border="0" src="http://www.photo.net/photodb/image-display?photo_id=1212832&size=sm"></a></center> Link to comment Share on other sites More sharing options...
kristian dowling Posted March 17, 2003 Share Posted March 17, 2003 You must be kidding right? Are you actually complaining? It is an "F/1" lens!!! If anything, at times you need f/1, the vignetting actually works, even at times where I didn't think it would....like this... <center> <img src="http://www.photo.net/photodb/image-display?photo_id=948834&size=lg"> </center> Link to comment Share on other sites More sharing options...
james_.1 Posted March 17, 2003 Share Posted March 17, 2003 That noct is fantastic, let's all buy the NOCT!!! :P Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted March 17, 2003 Share Posted March 17, 2003 My 6" F8 reflecting telescope has vignetting too; it too is less noticeable when used at night. Link to comment Share on other sites More sharing options...
markci Posted March 18, 2003 Share Posted March 18, 2003 <i> The wide open vignetting is one of the Noct's signatures. </i> <p> Interesting. If it were a $50 point and shoot it would be a flaw. In a Leica lens it's a signature! Sort of like how rich people are eccentric, whereas the rest of use are just weird. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted March 18, 2003 Share Posted March 18, 2003 My Swiss Switar 13mm F0.9 has vignetting too; it was helpfull when using slow Kodachrome II/25 type A tungsten movie film; which has an asa of 40. The movie light bars were super hot; this super fast lens could get some indoor shots with all the roome lights on full blast; and no hot movie bar. It too had vignetting too; all super fast lenses do. Link to comment Share on other sites More sharing options...
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