| Photograph Information |
Photographer's Comments |
Challenge: Macro VI (Advanced Editing V)
Camera: Canon EOS-350D Rebel XT
Lens: Sigma 70-300mm f/4-5.6 APO DG Macro for Canon
Location: Thornton, CO
Date: Oct 12, 2007
Aperture: f/5.6
ISO: 100
Shutter: 1/13s
Galleries: Macro, Floral
Date Uploaded: Oct 12, 2007
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Update: Thread on magnification techniques
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This is the 50mm reversed on the front of my 70-300. At 300mm, the magnification is insane. This is at 86mm. Focusing distance is about an inch.
I took more than 100 pictures of this dandelion in 3 different setups. At this magnification, my tripod couldn't even hold the camera steady, and I ended up setting the camera directly on the counter top with the dandelion placed an inch in front of the lens. Lit by a desk lamp on the right.
This is the full frame, no crop. The vignette is a result of the reversed 50mm. I tried a number of apertures to vary DOF, but in the end the smaller end had too harsh of a vignette.
PP includes (basic editing only):
- Various radii of USM
- Shadow highlight
- Gaussian blur, faded
- Color balance, Hue/Sat, B/W, and curves adjustment layers
- Resize, save for web
Some more info about reversing the 50mm:
At first I was hand-holding the 50mm on the front, but at those magnifications it's not possible to hold still, so I tapped it. =)
I then found that my tripod was not sturdy enough, because the shutter made the camera vibrate slightly (but enough at these magnifications.) So I ended up setting my camera on the counter, body, lens, and subject supported by stacks of CD's. By adding a CD or two, I got the placement just right so it sat still.
Here's one straight out of the camera at 70mm, f/16:
And at 300mm, f/20:
The dandelion head was about 8mm in diameter, so I estimate the 70mm focal length at about 2.9X magnification, and the 300mm around 8.75X.
At 300mm, the focal plane was insanely narrow - nearly unusably so. Of course, my aperture only goes to f/20. I notice that on the 180mm macro lens, the aperture goes to f/32. Now I know why! =)
Afterwards, I ordered a reversing ring on eBay. It's like a filter with 2 male threads - one 52mm and one 58mm - for attaching lenses front-to-front. This will let me attach my 50mm (52mm filter size) to either my 18-55 or 70-300 (both 58mm filter size). |
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10/28/2010 02:42:41 AM |
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 Photographer found comment helpful. |
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10/28/2007 07:23:37 PM |
| Neat image, and thanks for the tip. I tried it with Canon 50mm f/1.8 and Canon 70-300mm IS, and it works. Ordered the reversing ring right away! |
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10/23/2007 09:00:16 AM |
| A wonderful macro! Congrats on the top 10! :) |
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10/23/2007 05:35:37 AM |
| gave this a 9. great use of a reverse lens setup.. well done one 7th! |
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10/22/2007 07:25:51 PM |
| wow. this is BEAUTIFUL i wish i could have voted for it. 10. i hate how everyone does bugs. i much prefer this and the colors are beautiful! |
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10/22/2007 05:00:20 PM |
Congratulations on a great score and a top 10 - and a new PB of course.
Beautiful shot :) |
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10/22/2007 04:28:55 AM |
| Beautifully fragile and delicate. Perfect DOF. I thought this might be Ursulas image. Huge congratulations on top 10! |
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10/22/2007 01:11:20 AM |
| fantastic, Jeff! Great finish for a great image. |
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10/22/2007 12:12:04 AM |
| Congrats on top 10 and your new personal best! |
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Comments Made During the Challenge  |
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10/21/2007 09:34:44 PM |
| now that is a view you don't see everyday...nice work |
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10/21/2007 05:10:20 AM |
| Excellent, great detail/sharpness/composition, the muted colour/toning works really well with the smooth brokeh to make a great shot - 8 |
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10/20/2007 11:12:01 PM |
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10/20/2007 12:09:04 PM |
| Wow - nice image, that's close up! |
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10/19/2007 10:28:25 AM |
| I haven't seen a dandelion look this way, your colors and lighting are completely different from anything I have seen, nice shot! |
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10/18/2007 11:34:39 PM |
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10/18/2007 07:18:06 PM |
| Oh wow, my favourite shot so far. Nice and slightly surreal. good use of sepia. 9 well done. |
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10/18/2007 11:55:10 AM |
| Very nicely done. I really like the DOF and bokeh look. Very good detail and just the right tone of color. Nice work. |
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10/17/2007 05:41:54 PM |
| Wonderful depth of field as well as detail in the seeds |
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10/17/2007 01:24:45 PM |
| Great composition and overall image. Congrats wish you luck |
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10/17/2007 11:18:26 AM |
| WOW! Absolutely fabulous! |
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10/16/2007 02:35:07 PM |
| really nice focus and also great tones |
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10/16/2007 12:55:58 PM |
| Really nice job! I love the title too! |
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10/16/2007 12:29:11 PM |
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10/15/2007 08:19:43 AM |
| Lovely capture and colouring, well done:) |
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10/15/2007 06:46:48 AM |
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10/15/2007 04:35:56 AM |
| Well that's pretty special! Gratz |
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10/15/2007 03:30:13 AM |
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10/15/2007 01:23:07 AM |
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10/15/2007 12:13:18 AM |
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| Photographer found comment helpful. |
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