Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 14 Jun 2011 (Tuesday) 21:30
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Extension tubes for 70-200

 
Aperture1.4
Member
184 posts
Joined May 2011
     
Jun 14, 2011 21:30 |  #1

Which ones should I get? which shouldn't I get? preferably from adorama OR B&H please.


I am dealing with apple autocorrect. Excuse my spelling/random words.

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
jwhite0000
Hatchling
3 posts
Joined Nov 2008
     
Jun 14, 2011 21:33 |  #2

Aperture1.4 wrote in post #12595088 (external link)
Which ones should I get? which shouldn't I get? preferably from adorama OR B&H please.

I just bought the set of three made by Kenko from B&H. They come thurs. I'm going to try them on the 70-200, 24-70 and 50.




  
  LOG IN TO REPLY
huntersdad
Goldmember
4,612 posts
Likes: 215
Joined Nov 2008
     
Jun 14, 2011 21:41 as a reply to  @ jwhite0000's post |  #3

I tried a set of the Kenkos on my 70-200 today. Reduced MFD to a ridiculous 8ish inches. Shots were sharp and aperture was retained, which shocked the shop owner. He swore it would change.


Facebook (external link)

http://WWW.BLENDEDLIGH​TPHOTOGRAPHY.COM (external link)
1DxII x 2 / 24-70L II / 70-200L II / 85 1.4L / 300 II / AD600Pros

  
  LOG IN TO REPLY
Aperture1.4
THREAD ­ STARTER
Member
184 posts
Joined May 2011
     
Jun 14, 2011 21:44 |  #4

huntersdad wrote in post #12595156 (external link)
I tried a set of the Kenkos on my 70-200 today. Reduced MFD to a ridiculous 8ish inches. Shots were sharp and aperture was retained, which shocked the shop owner. He swore it would change.

You woild recommend them then? Care to post some shots?


I am dealing with apple autocorrect. Excuse my spelling/random words.

  
  LOG IN TO REPLY
huntersdad
Goldmember
4,612 posts
Likes: 215
Joined Nov 2008
     
Jun 14, 2011 21:52 as a reply to  @ Aperture1.4's post |  #5

I knew you were gonna ask for shots - I deleted them about 30 minutes ago. I would recommend them based some in-store testing. They seemed solid and well made. I was using all 3 of them for my test shots so I didn't test them individually. Now that I think it over, 8 inches was probably too much a difference. Probably closer to 1.5ft, but that's from almost 4 feet. I also didn't test them at any other FL given what they are used for I figured that the 200 end would be the spot.

As a side note, I then went back to work and found the formula for calculating what the new MFD was. Practically impossible to do. But it is really shortened.


Facebook (external link)

http://WWW.BLENDEDLIGH​TPHOTOGRAPHY.COM (external link)
1DxII x 2 / 24-70L II / 70-200L II / 85 1.4L / 300 II / AD600Pros

  
  LOG IN TO REPLY
1Tanker
Goldmember
Avatar
4,470 posts
Likes: 5
Joined Jan 2011
Location: Swaying to the Symphony of Destruction
     
Jun 15, 2011 01:33 |  #6

huntersdad wrote in post #12595156 (external link)
I tried a set of the Kenkos on my 70-200 today. Reduced MFD to a ridiculous 8ish inches. Shots were sharp and aperture was retained, which shocked the shop owner. He swore it would change.

The 68mm Kenko set reduces my 70-200 f/4 IS MFD to ~28"...i'd kill for your set! ;)


Kel
Gear

  
  LOG IN TO REPLY
huntersdad
Goldmember
4,612 posts
Likes: 215
Joined Nov 2008
     
Jun 15, 2011 07:51 |  #7

1Tanker wrote in post #12596159 (external link)
The 68mm Kenko set reduces my 70-200 f/4 IS MFD to ~28"...i'd kill for your set! ;)

I misestimated my changes - but, yes, that would be nice. I forgot the tubes were about 4" long and the subject distance was about the same. I'd still estimate 16-18 inches MFD as compared to the original 48 inches.


Facebook (external link)

http://WWW.BLENDEDLIGH​TPHOTOGRAPHY.COM (external link)
1DxII x 2 / 24-70L II / 70-200L II / 85 1.4L / 300 II / AD600Pros

  
  LOG IN TO REPLY
wombatHorror
Goldmember
1,937 posts
Joined Sep 2010
Location: NJ
     
Jun 16, 2011 00:23 |  #8

Aperture1.4 wrote in post #12595175 (external link)
You woild recommend them then? Care to post some shots?

Here are a couple shots with Kenko 36mm (maybe the 20mm was on too, but I think just the 36mm) on 70-200 f/4 IS on 5D2, my first attempt ever with them on a regular lens actually, from today:

Natural lighting. AI Servo AF. IS on. 1/320th, ISO400, f/8, 200mm. Very slight cropping:

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


Similar to as above only ISO800 and 1/250th this time (sun went behind the cloud), note decapitated bug head below it! I saw it repeatedly leave the perch and nab little bugs in the air to eat:
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO



  
  LOG IN TO REPLY
Aperture1.4
THREAD ­ STARTER
Member
184 posts
Joined May 2011
     
Jun 16, 2011 05:57 |  #9

Wow, those look great,Ill look more into them!! Thanks guys!


I am dealing with apple autocorrect. Excuse my spelling/random words.

  
  LOG IN TO REPLY
Silverfox1
Goldmember
Avatar
3,189 posts
Gallery: 3 photos
Likes: 49
Joined Aug 2009
Location: South Texas
     
Jun 16, 2011 09:12 as a reply to  @ Aperture1.4's post |  #10

Why pay more when you can them below from a reputable vendor:

http://cgi.ebay.com …ain_0&hash=item​20ba40ce30 (external link)


Silverfox1 POTN Feedback / TC Extender Tests / Gear List

  
  LOG IN TO REPLY
huntersdad
Goldmember
4,612 posts
Likes: 215
Joined Nov 2008
     
Jun 16, 2011 09:27 |  #11

Silverfox1 wrote in post #12603359 (external link)
Why pay more when you can them below from a reputable vendor:

http://cgi.ebay.com …ain_0&hash=item​20ba40ce30 (external link)

Their shipping times are 3-4 weeks from DoP. I'd pay the extra to have it a little sooner than that.


Facebook (external link)

http://WWW.BLENDEDLIGH​TPHOTOGRAPHY.COM (external link)
1DxII x 2 / 24-70L II / 70-200L II / 85 1.4L / 300 II / AD600Pros

  
  LOG IN TO REPLY
gremlin75
Goldmember
Avatar
2,727 posts
Gallery: 4 photos
Likes: 216
Joined Feb 2011
Location: Detroit, MI
     
Jun 16, 2011 11:14 |  #12

Also look at the zeikos. They are cheaper due to them being made out of composit (Aka really strong plastic). They work great in my 70-200f4 and at just $68 are a great deal.




  
  LOG IN TO REPLY
Silverfox1
Goldmember
Avatar
3,189 posts
Gallery: 3 photos
Likes: 49
Joined Aug 2009
Location: South Texas
     
Jun 16, 2011 13:11 |  #13

huntersdad wrote in post #12603448 (external link)
Their shipping times are 3-4 weeks from DoP. I'd pay the extra to have it a little sooner than that.

Thats not true in my ordering experiences with these vendors. I ordered them and got them in 10 business days or two weeks delivered here in Texas.

The vendor below is also about 10 days for delivery on their items that i have ordered in the past:

http://cgi.ebay.com …enses&hash=item​2a101de756 (external link)

Your money not mine ! :p


Silverfox1 POTN Feedback / TC Extender Tests / Gear List

  
  LOG IN TO REPLY
arentol
Goldmember
1,305 posts
Joined Jun 2009
Location: Seattle WA
     
Jun 16, 2011 13:27 |  #14

huntersdad wrote in post #12595156 (external link)
I tried a set of the Kenkos on my 70-200 today. Reduced MFD to a ridiculous 8ish inches. Shots were sharp and aperture was retained, which shocked the shop owner. He swore it would change.

The actual aperture of your lens is entirely unaffected by tubes, but the amount of light that reaches the sensor is still reduced. Your cameras exposure system will detect the light fall off still and will automatically allow for it, causing you to use a slower shutter speed or higher ISO. The difference between an actual reduced aperture and light fall off due to increased distance from lens to sensor plane is a subtle but important difference.

Go to the "Lens extension & Effective F-Stop" section of this link to get a more complete explanation:

http://www.cambridgein​colour.com/tutorials/m​acro-lenses.htm (external link)


5D3 | Rokinon 14 f/2.8 | 16-35L II | TS-E 24L | Tamron 24-70 f/2.8 | Tamron 28-75 f/2.8 | Voigtlander 40 f/2.0 | Σ 50 f/1.4 | MP-E 65 | 70-200 2.8L IS II | Σ 85 f/1.4 | Zeiss 100 f/2 | Σ 120-300 f/2.8 OS | 580 EX II | 430 EX II | Fuji X10 | OM-D E-M5 | http://www.mikehjphoto​.com/ (external link)
*****Lenses For Sale (external link)*****

  
  LOG IN TO REPLY
wombatHorror
Goldmember
1,937 posts
Joined Sep 2010
Location: NJ
     
Jun 16, 2011 16:25 |  #15

Silverfox1 wrote in post #12603359 (external link)
Why pay more when you can them below from a reputable vendor:

http://cgi.ebay.com …ain_0&hash=item​20ba40ce30 (external link)

Yeah, I thought about that, but some people who ordered from HK have had like 4-8 week delivery times for this and I didn't want to miss the dragonfly season, some early species will be hard to find in even one more week. I mean maybe you luck out and it arrives in 1-2 weeks but I decided to spend the extra $30 and get it overnight from Brooklyn to be safe, since the longer delivery times do happen just enough to wonder.




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

2,507 views & 0 likes for this thread
Extension tubes for 70-200
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is sam729
2284 guests, 346 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.