JimG I feel thoroughly satisfied  12,255 posts Likes: 2 Joined Jun 2005 Location: Australia. More info | Oct 31, 2006 07:16 | #1 As the title says... I just found out today from another thread (50mm 1.8 pics one) that you can take the lens off and shoot through it backwards... was very excited, shot off a few and had a lot of fun (I want a macro lens even more now) after holding down the DOF preview and removing the lens to get some sort of DOF through the lens. Gear Listhttp://www.codastudios.com.au
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JimG THREAD STARTER I feel thoroughly satisfied 12,255 posts Likes: 2 Joined Jun 2005 Location: Australia. More info | Oct 31, 2006 07:21 | #2 Actually you can - press the DOF preview button and disconnect the lens while it's held down. They stay where you put them. Gear Listhttp://www.codastudios.com.au
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cdifoto Don't get pissy with me  34,092 posts Likes: 48 Joined Dec 2005 More info | Oct 31, 2006 07:22 | #3 I deleted my post because I realized I was incorrect! Did you lose Digital Photo Professional (DPP)? Get it here
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JimG THREAD STARTER I feel thoroughly satisfied 12,255 posts Likes: 2 Joined Jun 2005 Location: Australia. More info | Oct 31, 2006 07:26 | #4 Hehe. I didn't know you could do that before about an hour ago either Gear Listhttp://www.codastudios.com.au
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cdifoto Don't get pissy with me 34,092 posts Likes: 48 Joined Dec 2005 More info | Oct 31, 2006 07:27 | #5 I was kinda going based on the fact that the aperture stays open all the time except the instant the pic is taken. I was assuming it would then go back to wide open without being connected to a camera.. Did you lose Digital Photo Professional (DPP)? Get it here
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JimG THREAD STARTER I feel thoroughly satisfied 12,255 posts Likes: 2 Joined Jun 2005 Location: Australia. More info | Oct 31, 2006 07:29 | #6 Yeah, that's what I thought - I figured it needed power to stay at anything other than wide open, it was kind of a surprise to find that it stayed as it is. Hence the thought that it might not be too good for it... No real basis beyond that for the thought but I figured it was worth asking in case someone had a good explanation/answer. Gear Listhttp://www.codastudios.com.au
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cdifoto Don't get pissy with me 34,092 posts Likes: 48 Joined Dec 2005 More info | Oct 31, 2006 07:41 | #7 I dunno but I was playing a few mins ago. I never got into macro and don't think I would as far as bugs and such are concerned...but it's fun anyway! Did you lose Digital Photo Professional (DPP)? Get it here
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tiha Senior Member  960 posts Likes: 24 Joined Feb 2005 Location: 44°49′14″N 20°27′44″E More info | My guess is that on EF lenses there is an electromotor which closes and opens aperture blades (not spring or something like that because they need power to open and close) and I think that leaving them closed will not cause any harm. However, it's just my opinion 8) EOS 5D, EOS 30D, EOS 3, PowerShot G6
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ChrisBlaze Goldmember  1,801 posts Joined Oct 2006 Location: Honolulu, Hawaii More info | Oct 31, 2006 10:02 | #9 Jim G wrote in post #2194798  As the title says... I just found out today from another thread (50mm 1.8 pics one) that you can take the lens off and shoot through it backwards... how is that possible? Canon 1D Mark II N/5D Mark III/ 6D/ 7D /85mm f1.2L Mk1/ 24-70 f2.8L/ 70-200mm f2.8L IS USM/ 100mm Macro f/2.8
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gasrocks Cream of the Crop  13,432 posts Likes: 2 Joined Mar 2005 Location: Portage, Wisconsin USA More info | Oct 31, 2006 10:07 | #10 |
slin100 Senior Member 976 posts Likes: 1 Joined Sep 2003 Location: Cupertino, CA More info | Oct 31, 2006 10:16 | #11 ChrisBlaze wrote in post #2195393 how is that possible? If you're curious, just hold the lens up to the camera, being sure not to scratch the front element on anything. You'll see that the image is greatly magnified. Reversed lenses function as cheap macros. You can buy reversing rings to mount reversed lenses directly to the lens mount or to another lens. Steven
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sirsloop BigFoot 943 posts Likes: 2 Joined Oct 2006 Location: South River, NJ More info | Oct 31, 2006 10:19 | #12 the aperture is controlled by an electromagnetic servo... so adjust the aperture to where you want it, hit the button, disconnect power - the magnets go dead and the aperture stay where its at. no gear List
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JimG THREAD STARTER I feel thoroughly satisfied 12,255 posts Likes: 2 Joined Jun 2005 Location: Australia. More info | Oct 31, 2006 18:38 | #13 I can't claim to have discovered the technique, I pinched it off that other thread I mentioned earlier...
I was fiddling in a dark room, this is my nurse's watch.. metering is all over the shop with this technique, I should really meter through the lens then put the camera in manual while it's off. I'd be interested in getting a mount to attach one lens to the other and getting me a nifty fifty again to whack on the back and not worry about the rear element of... or maybe a reversed lens hood.. Anyway, that photo only turned out okay but I'm sure with some more lighting and proper exposure I could get some quite good results of this, the other shots that I did that aren't uploaded are really quite sharp though the DOF is ridiculously thin.  Thanks for the replies too, guys, it sounds like it's not going to be damaging anything... Gear Listhttp://www.codastudios.com.au
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sirsloop BigFoot 943 posts Likes: 2 Joined Oct 2006 Location: South River, NJ More info | Oct 31, 2006 21:03 | #14 naw... the camera still meters the shot, but you have to be set in manual mode. Just hold the shutter half way down and adjust using the meter bar. It just takes a couple attempts to get dialed in.... use the histogram to verity exposure.
no gear List
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Bamamike Senior Member 278 posts Joined Apr 2005 Location: Huntsville, AL, USA More info | Nov 01, 2006 18:22 | #15 I found another solution. Look at Two bodies left, some "soso" lenses, and still a lot of gear.....
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