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General Photography
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strange reflections in viewfinder
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<blockquote data-quote="Gemkutter" data-source="post: 459455" data-attributes="member: 39480"><p>Hello and thanks for having me as a member. I am a real photonoob, just starting to learn so please bear with me.</p><p>I posted this in the D60 section first, hoping for a bigger audience here. If I am breaking any rules admin, please delete the other post.</p><p> I facet gemstones and am having a fit trying to photo them. Hard to sell them with blurry pictures.</p><p> I just got a set of 3 extension tubes, no name brand, they fit and seem well made. 9, 16, and 30mm. All aluminum with matte black finish, probably anodized. But when I put any combination of tubes on the camera I get this array thru the viewfinder.</p><p> Doesnt matter if its turned on or not, doesnt matter what I aim it at, its always there. It still takes pics fine, but rather hard to focus with this in the way. </p><p>There is a center dot, always red, surrounded by 6 white dots, then the rest kind of grey/bluish. All in a perfect honeycomb pattern. <u>It only shows up with the ext. tubes</u>, with either one of my 2 lenses. Looks to me like a multiple reflection of the aperture opening. Doesnt show on any pics.</p><p> I took the gem picture below with the pattern in the viewfinder. Not too bad, but the stone is the size of a penny. For small ones I cant tell if its focused because of all the visual interference from this pattern in the viewfinder. Kind of like looking thru a wet screen. </p><p> Again, the camera works just fine without the ext. tube or tubes. Mirror clean, nothing loose.</p><p>D60 with 18-55 lens. Same thing with 55-200. Using center sensor, control dial on M, autofocus off.</p><p></p><p>I will stop rambling now and wait for some hopefully professional advice from you guys and girls.</p><p></p><p>Nick, Stuck in SC</p><p><a href="http://s1339.photobucket.com/user/trinonan/media/ScreenHunter_28%20Jun.%2002%2005.38_zps98d64qe5.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o707/trinonan/ScreenHunter_28%20Jun.%2002%2005.38_zps98d64qe5.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p><a href="http://s1339.photobucket.com/user/trinonan/media/ScreenHunter_22%20Jun.%2001%2015.25_zps0aeefypg.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o707/trinonan/ScreenHunter_22%20Jun.%2001%2015.25_zps0aeefypg.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p style="text-align: left"><span style="color: #000000"></span></p> <p style="text-align: left"><span style="color: #000000">Read more: <a href="http://nikonites.com/d60/30922-ext-tube-weird-problem.html#ixzz3c06nssBl" target="_blank">http://nikonites.com/d60/30922-ext-tube-weird-problem.html#ixzz3c06nssBl</a></span></p> <p style="text-align: left"><span style="color: #000000"></span></p></blockquote><p></p>
[QUOTE="Gemkutter, post: 459455, member: 39480"] Hello and thanks for having me as a member. I am a real photonoob, just starting to learn so please bear with me. I posted this in the D60 section first, hoping for a bigger audience here. If I am breaking any rules admin, please delete the other post. I facet gemstones and am having a fit trying to photo them. Hard to sell them with blurry pictures. I just got a set of 3 extension tubes, no name brand, they fit and seem well made. 9, 16, and 30mm. All aluminum with matte black finish, probably anodized. But when I put any combination of tubes on the camera I get this array thru the viewfinder. Doesnt matter if its turned on or not, doesnt matter what I aim it at, its always there. It still takes pics fine, but rather hard to focus with this in the way. There is a center dot, always red, surrounded by 6 white dots, then the rest kind of grey/bluish. All in a perfect honeycomb pattern. [U]It only shows up with the ext. tubes[/U], with either one of my 2 lenses. Looks to me like a multiple reflection of the aperture opening. Doesnt show on any pics. I took the gem picture below with the pattern in the viewfinder. Not too bad, but the stone is the size of a penny. For small ones I cant tell if its focused because of all the visual interference from this pattern in the viewfinder. Kind of like looking thru a wet screen. Again, the camera works just fine without the ext. tube or tubes. Mirror clean, nothing loose. D60 with 18-55 lens. Same thing with 55-200. Using center sensor, control dial on M, autofocus off. I will stop rambling now and wait for some hopefully professional advice from you guys and girls. Nick, Stuck in SC [URL=http://s1339.photobucket.com/user/trinonan/media/ScreenHunter_28%20Jun.%2002%2005.38_zps98d64qe5.jpg.html][IMG]http://i1339.photobucket.com/albums/o707/trinonan/ScreenHunter_28%20Jun.%2002%2005.38_zps98d64qe5.jpg[/IMG][/URL] [URL=http://s1339.photobucket.com/user/trinonan/media/ScreenHunter_22%20Jun.%2001%2015.25_zps0aeefypg.jpg.html][IMG]http://i1339.photobucket.com/albums/o707/trinonan/ScreenHunter_22%20Jun.%2001%2015.25_zps0aeefypg.jpg[/IMG][/URL] [LEFT][COLOR=#000000] Read more: [URL]http://nikonites.com/d60/30922-ext-tube-weird-problem.html#ixzz3c06nssBl[/URL] [/COLOR][/LEFT] [/QUOTE]
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