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Old May 8, 2013, 3:46 AM   #1
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Default Meike Extension Tubes w/14-45

I took delivery of the extension tubes today. About 7 days total from NJ to Western Pa. They are branded and boxed as Meike. Purchased from Neweer via Amazon, $29 inc. USPS.
 
Did some tests for reference with the 14-45 and came up with some specs using a G1 body.
 
With the 10mm tube alone and 14-45 extended to the full 45mm, I could get a maximum of 40mm in the frame at close focus. That's @6.5" to the tripod mount and @ 1.5" to the lens itself.
 
I got 75mm at infinity at the maximum focus distance of @10" to the body and @5" to the lens.
 
With the 16mm tube alone:
 
25mm at close focus, 6" to body, 1" to lens.
 
46mm at infinity, 8" to body, 3" to lens.
 
Obviously any negative zoom increases the image size and reduces the distance considerably. The macro calculations of tube length/focal length = image ratio at "infinity" seem relatively accurate throught the focal length range. It's difficult to be precise with the focus by wire system.
 
All distances are approximate, but close. The mm of image size are accurate at 4:3 aspect ratio.
 
Auto focus, IS, and auto stop-down performed flawlessly throughout the testing and the exposure was no issue whatsoever. I did most of the tests in Aperture mode at f/stops from f/5.6 to f/22. No problems at any aperture.
 
I took a couple dozen shots with a Metz36 TTL flash added with a Sto-Fen diffuser mounted at 30 degrees and it did well also with the flash extended to the 90mm pt. The TTL seems to function reasonably well with the tubes added. I didn't experiment much, but the potential is obvious.
 
Auto-focus was fine, but Manual or AF+MF got results that I'm more satisified with, after using the blank tubes and slr primes I'm more familiar with.
 
The Meike tubes have a very nice fit and finish. The lens fit nice and snug and the tubes fit the body similarly. The claimed 50 grams for the 10mm and 70 grams for the 16mm feel about right. They are very lightweight. The 10mm is not much bigger than the original lens cap.
 
My primary use for the tubes was a convenient macro capability with my hiking gear to use with the 14-45. It's likely I'll only use the 10mm for my purposes. It provides the image size and working distance I'm comfortable with.
 
I'll test the tubes and post the results with the 45-200 at some point, but it wasn't a consideration in the purchase. I've never seen anyone mention how these worked with a 14-42/45 "kit" lens. I thought someone might like to know.
 
For $29 including USPS, the auto tubes were definitely worth the price. They add a whole new life to a 14-45 or 14-42.
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Old May 10, 2013, 8:47 PM   #2
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That is truly a great deal for $29. Ebay price is now $49. Where did you buy it? Can you share the link to this vendor? Thanks!
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Old May 11, 2013, 1:23 AM   #3
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This is the link, but it comes and goes. There will be one left, then sold and back again. They could be gone altogether now. I stumbled across it by accident. I saw 3 or 4 sell since I posted.

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
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Old May 11, 2013, 2:15 PM   #4
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That was a great deal! Too bad it is no longer available. Thanks for the info!
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Canon EOS T3i, 7D and 70D EF 17-40mm f/4L, EF-S 55-250mm f/4-5.6, Sigma 18-250mm f/3.5-6.3 DC OS HSM, 430 EXII Flash.
Sony A200, SLT-A58 System with HVL-F42AM Flash.
Mirrorless APS-C camera: Samsung NX100, Canon EOS-M.
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Old May 30, 2013, 9:53 PM   #5
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They are in stock at $25.12 + USPS "right now".

Don't wait if you want them. I must be the only one that has that link.
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Old May 31, 2013, 8:59 AM   #6
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.....I ordered a set 3-days ago. Thanks for the review Les, I am looking forward to getting them.

Presently I am using the Olympus EX-25 and mostly a Zuiko 70-300 on my Olympus E-P3 with an MMF-2 adapter. The 10mm & 16mm split will be nice to have for the 14-42 and 40-150 m43 lenses.
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Old May 31, 2013, 2:21 PM   #7
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Quote:
Originally Posted by boBBrennan View Post
.....I ordered a set 3-days ago. Thanks for the review Les, I am looking forward to getting them.

Presently I am using the Olympus EX-25 and mostly a Zuiko 70-300 on my Olympus E-P3 with an MMF-2 adapter. The 10mm & 16mm split will be nice to have for the 14-42 and 40-150 m43 lenses.


Hi Bob, glad you got to take advantage of that deal. Seems foolish to pass it up, if you're here in the US.

You'll be surprised how well they work. The 10mm on the 14-45 is just perfect for little nickel to quarter size flowers up to about the size of a small tulip.

"Comfortable" is the best word to describe it. It's hard to remember you're reaching nearly 1:2 at the sensor. Best $29 I've spent in a long, long time.

Good Luck, Les
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Old Jun 21, 2013, 11:30 AM   #8
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I got a set as well! Great deal and thanks!
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Canon 5D MKII, EF 24-105mm f/4L, EF 50mm f/1.8, EF 100mm f/2.8L Macro, Tamron 70-300mm f/4.0-5.6 SP Di VC USD XLD, Sigma DG 150-500mm f/5.-6.3 APO HSM.
Canon EOS T3i, 7D and 70D EF 17-40mm f/4L, EF-S 55-250mm f/4-5.6, Sigma 18-250mm f/3.5-6.3 DC OS HSM, 430 EXII Flash.
Sony A200, SLT-A58 System with HVL-F42AM Flash.
Mirrorless APS-C camera: Samsung NX100, Canon EOS-M.
M4/3 systems: Olympus OM-D-E-M5 and Panasonic DMC-G3.
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Old Jul 2, 2013, 11:24 AM   #9
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Wow, these seem worth a shot. Thanks.

(I'm assuming they're for micro 43 and not Four Thirds.)
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Old Jul 2, 2013, 3:59 PM   #10
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This is for m4/3 camera which will work for Panasonic and Olympus m4/3 camera. Excellent deal for the price and it works too!
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Canon 5D MKII, EF 24-105mm f/4L, EF 50mm f/1.8, EF 100mm f/2.8L Macro, Tamron 70-300mm f/4.0-5.6 SP Di VC USD XLD, Sigma DG 150-500mm f/5.-6.3 APO HSM.
Canon EOS T3i, 7D and 70D EF 17-40mm f/4L, EF-S 55-250mm f/4-5.6, Sigma 18-250mm f/3.5-6.3 DC OS HSM, 430 EXII Flash.
Sony A200, SLT-A58 System with HVL-F42AM Flash.
Mirrorless APS-C camera: Samsung NX100, Canon EOS-M.
M4/3 systems: Olympus OM-D-E-M5 and Panasonic DMC-G3.
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