GG Media Works Posted December 21, 2017 Share #1 Posted December 21, 2017 Advertisement (gone after registration) Hello all, New member, long time lurker here. Picked up an M10 last month and thought it was time to finally join the forum. Was reviewing some of my photos the other day and noticed a band at the top of some of my photos. Took around 100 shots and it looked to have shown up in 3-4 of them. Seemed to only be when shooting toward the sun. Thought I would post to get the collectives feedback on if this is a potential issue with my camera or just a phenomenon from shooting into the sun? Anyone else experience this? Any/all input is appreciated. 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! Quote 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/280093-band-at-the-top-of-m10-photos/?do=findComment&comment=3422872'>More sharing options...
Advertisement Posted December 21, 2017 Posted December 21, 2017 Hi GG Media Works, Take a look here band at the top of M10 photos. I'm sure you'll find what you were looking for!
adan Posted December 21, 2017 Share #2 Posted December 21, 2017 (edited) You are shooting with the sun in the background just outside the frame. The sun's image is thus being projected onto the floor of the camera chamber (outside the shutter area), and reflecting onto the sensor, creating "flare" (pale fog) across the whole image. (Remember lenses project the world upside-down). Because the shutter and sensor/film are recessed in an opening, there is a thin ledge that blocks or shades that flare from hitting the lowest 1-2mm of the sensor like an awning, giving you a "clean, unfogged" stripe. I.E. the exposure in the strip is actually "correct" - it is everything else in the picture that is fogged somewhat by the reflected light from the camera's insides. Since the sun is almost always "up" in a picture, the stripe or band will also be "up" or across the top most of the time. Shoot with your camera upside-down in the same lighting, and you'll get the band across the bottom. A lens hood can help - but unless it has a rectangular opening to exactly match the 2:3 shape of your picture, you can still get some flare occasionally, and the stripe. I keep this explanatory diagram around, because your question comes up over and over - it even happens with film. You are not alone! 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! Edited December 21, 2017 by adan 5 Quote 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/280093-band-at-the-top-of-m10-photos/?do=findComment&comment=3422993'>More sharing options...
wizard Posted December 21, 2017 Share #3 Posted December 21, 2017 Most excellent explanation of a common problem, much appreciated. Andy Quote Link to post Share on other sites More sharing options...
Aleksei Chi Posted December 21, 2017 Share #4 Posted December 21, 2017 I had the same experience with my M240 https://www.flickr.com/photos/91602790@N03/30187272082/in/dateposted-public/ Quote Link to post Share on other sites More sharing options...
tobey bilek Posted December 21, 2017 Share #5 Posted December 21, 2017 How do we make a shade that does this close shading ? Quote Link to post Share on other sites More sharing options...
willemr Posted December 21, 2017 Share #6 Posted December 21, 2017 Learning everyday over here. Quote Link to post Share on other sites More sharing options...
GG Media Works Posted December 21, 2017 Author Share #7 Posted December 21, 2017 Advertisement (gone after registration) Adan, thank you very much for the thorough explanation and your willingness to answer this questions repeatedly when it comes up. Also, yeah, I'm guilty of not using a lens hood that day. kind regards, Quote Link to post Share on other sites More sharing options...
adan Posted December 22, 2017 Share #8 Posted December 22, 2017 How do we make a shade that does this close shading ? Cardboard, or 3D printing? Leica has made rectangular lens hoods over the years, but only for their wide-angle lenses (and the 50mm Summarit f/2.5/2.4) - not for the longer lenses. So has Voigtlander, and there are other 3rd-party rectangular hoods out there. http://cdn3.bigcommerce.com/s-xh0ryzlg/products/184/images/1959/lclh3550sm__25706.1466526841.500.750.jpg?c=2 Hollywood, with no size restrictions, has used massive rectangular shades, and/or add-on "barn doors" for decades. Often with bellows, so they can be lengthened or shortened to exactly match a given focal length setting. So did Hasselblad, Mamiya, Sinar and other "studio still" camera-makers. A bit big for casual shooting, though. http://static1.squarespace.com/static/50a17baae4b046b429560f21/50cececfe4b0bbe20affcc2a/532765bfe4b022876bf60fe4/1395091632514/camera_3.jpg?format=1000w http://www.cinematographers.nl/Cameras/Sony/HDW-F900R.jpg https://www.bhphotovideo.com/images/images500x500/hasselblad_pro_shade_5070_compendium_366168.jpg Canon built a rectangular baffle inside the front of their 20-35mm WA zoom: https://i.ytimg.com/vi/mQl75X1QwlY/hqdefault.jpg The big problem is that a lens is not an infinitely small point, but a disk of glass 1-3 inches in diameter, and to be fully effective, a lens shade has to shade all of it, all the way to the bottom of the lens front, without intruding into the picture at the top. Tricky. 1 Quote Link to post Share on other sites More sharing options...
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