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Kenko extension tubes - Nontechnical test with several lenses

Discussion in 'Accessories' started by Mytola, Feb 24, 2013.

  1. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    The Idea:

    I got myself a set of the Kenko extension tubes for µ-4/3 last week, and I set up a simple test in order to get a feel of how they work with my lenses. I wanted to test the focus range with all the different options for each of my lenses, and I thought this might be of interest to others as well.

    This is going to get picture heavy, and I'm going to do one lens per post to make it easier to read.

    The Lenses:

    First off, the Olympus 12mm f/2, which I've also got, is not practical to use with the extension tubes. Even with the 10mm tube only and at maximum focusing distance, the plane of focus in just a few millimetres from the lens. So that leaves the Olympus 45mm, 75mm and Panasonic 14-42mm.

    Links to each lens test here:

    Olympus 45mm f/1.8
    Olympus 75mm f/1.8
    Panasonic 14-42mm f/3.5-5.6 (Mega OIS)

    The Setup:

    I set up a simple 80x80cm photo tent on a table, with a Nikon SB-700 + softbox outside the tent at camera left, triggered with a phottix wireless trigger, and a reflector outside the tent at camera right. Camera used was a Olympus OM-D E-M5 on a small tripod. The subject used was my watch, which incidentaly I did not bother cleaning before the shoot, so don't mind the marks and dust on it... :tongue:

    The Pictures:

    The pictures were raw files, imported into Adobe Lightroom 4.3. Very slight adjustments were made, including a final sharpen after image resize. Focus was done manually in live view, and was not 110% in all the pictures. Razor thin dof, not the best technical setup in the world etc, etc... The main goal here was to test what my limits of near and far focus was with each lens and combination of extension tubes. Not perfect focus and quality. I'm just an amateur with simple equipment, limited knowhow and an idea. :smile:

    When I get my hands on more lenses, I'll try to do a reshoot with better equipment and update here.
     
    • Like Like x 4
  2. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    Olympus 45mm f/1.8:



    Back to introduction

    Minimum focusing distance, no tubes:
    8503739096_1d899cdc96_b.


    100% Crop of the above:
    8502633933_9d98b8f99a_b.



    Maxium focusing distance, 10mm tube:
    8503739884_97186a51d7_b.


    100% Crop of the above:
    8502634583_80c05285e5_b.



    Minimum focusing distance, 10mm tube:
    8503739732_c42af31a1f_b.


    100% Crop of the above:
    8503741946_cdffefe10a_b.



    Maximum focusing distance, 16mm tube:
    8503739598_61e7efd1b5_b.


    100% Crop of the above:
    8502634371_2c4c05382f_b.



    Minimum focusing distance, 16mm tube:
    8503739458_8fda8184e3_b.


    100% Crop of the above:
    8503741712_2b39d95d1a_b.



    Maximum focusing distance, 26mm tubes (both):
    8502632005_367d6150ba_b.


    100% Crop of the above:
    8502634145_3e7ed4ee1b_b.



    Minimum focusing distance, 26mm tubes (both):
    8503739204_caf362ff3e_b.


    100% Crop of the above:
    8502634017_85e1c79574_b.

    Back to introduction

    More lenses to follow.
     
    • Like Like x 5
  3. drd1135

    drd1135 Zen Snapshooter

    Mar 17, 2011
    Southwest Virginia
    Steve
    Nice. I've been thinking about getting these.
     
  4. Livnius

    Livnius Super Moderator

    Jul 7, 2011
    Melbourne. Australia
    Joe
    Be sure to post your test shots with the Oly 75mm....I'd like to see how they compare.
    Thanks again.
     
    • Like Like x 1
  5. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    Thanks! I can definately recommend these. Everything works with AF, OIS, Aperture control and MF. The rest of the pics will follow within minutes! :smile:
     
  6. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    Olympus 75mm f/1.8:



    Back to introduction

    Minimum focusing distance, no tubes:
    8502723019_f6cb219739_b.


    100% Crop of the above:
    8503833182_ddd17a674c_b.



    Maxium focusing distance, 10mm tube:
    8503831358_41c7fcbab1_b.


    100% Crop of the above:
    8503833884_45e2e7781c_b.



    Minimum focusing distance, 10mm tube:
    8503831190_c6254550a9_b.


    100% Crop of the above:
    8503833756_a394d1d3ab_b.


    Maximum focusing distance, 16mm tube:
    8503831072_95963d1e6b_b.


    100% Crop of the above:
    8502725949_f711ea75e7_b.



    Minimum focusing distance, 16mm tube:
    8502723405_ce258df8dc_b.


    100% Crop of the above:
    8503833498_76da4e0e9d_b.



    Maximum focusing distance, 26mm tubes (both):
    8502723267_6a2fdcb4f2_b.


    100% Crop of the above:
    8502725699_230ae7a9a1_b.



    Minimum focusing distance, 26mm tubes (both):
    8503830740_326aa5ee84_b.


    100% Crop of the above:
    8503833266_c970e477e2_b.

    Back to introduction

    More lenses to follow.
     
    • Like Like x 3
  7. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    Panasonic 14-42mm f/3.5-5.6 MEGA O.I.S (@42m):


    As I managed to forget to take a picture without any tubes to show the default minimum focusing distance while I had my setup up and running, I had to take one today, without any setup and in harsh lighting conditions. (and a really dirty watch... :tongue: )That's why that picture is different from the rest. The minimum focus distance with both extension tubes was also too close to the lens to take a meaningful picture. No picture of that.


    Back to introduction

    Minimum focusing distance, no tubes:
    8502817743_df759feb55_b.


    100% Crop of the above:
    8503936438_4cc67540c4_b.



    Maxium focusing distance, 10mm tube:
    8503926504_e7448b0247_b.


    100% Crop of the above:
    8502828977_a87ed0227b_b.



    Minimum focusing distance, 10mm tube:
    8503926374_b5cab47635_b.


    100% Crop of the above:
    8502828841_024e64c003_b.



    Maximum focusing distance, 16mm tube:
    8502818139_47a4e85df4_b.


    100% Crop of the above:
    8503936768_e846b9457e_b.



    Minimum focusing distance, 16mm tube:
    8502817983_fff8c9b3e3_b.


    100% Crop of the above:
    8503936632_f82e8ccc73_b.



    Maximum focusing distance, 26mm tubes (both):
    8503926000_43c23b5364_b.


    100% Crop of the above:
    8503936518_7161570432_b.

    Back to introduction

     
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  8. jime

    jime Mu-43 Regular

    107
    Sep 3, 2012
    Jonestown Texas
    Mytola,

    This is great information. Looks like the 45 gets a bit closer than the 75. I have been experimenting with macro using closeup lenses and reversing rings. My biggest problems ave to do with getting proper manual focus, DOF, and getting the insect to hold still while I try to get the picture.

    How easy is it to focus with these extension tubes? Can you control aperture?

    Sent from my iPad using Mu-43 App
     
  9. veereshai

    veereshai Mu-43 Top Veteran

    777
    May 12, 2011
    Arlington, VA
    Thank you for these wonderful tests. I have been thinking of this setup for a while now but wasn't sure. Now, I can go ahead and buy the tubes. Thanks again.
     
  10. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    All the electronics work just as well as without any tubes. Aperture, AF, MF, Dof-preview, OIS, etc. The build quality of the tubes is also excellent. Solid metal construction. They are simply great!
     
  11. Livnius

    Livnius Super Moderator

    Jul 7, 2011
    Melbourne. Australia
    Joe
    Nice test.

    Seems to me that things look a little better at the maximum focus distance in all cases.
    The sample of the 14-42 at max focus distance with just the 10mm tube looks surprisingly good.
     
  12. Mytola

    Mytola Mu-43 Regular

    35
    Feb 10, 2013
    Yep, my experice with the tubes is that things generally looks better at max focus distance as well. The 14-42 isn't that bad, but there is a lot more chromatic abberation and "glow" than both the olympus lenses. But, for an inexpensive, slow zoom, this isn't bad at all.

    All the pictures were taken at f/5.6 for all lenses, btw. There are some focusing misses that are especially visible in the 100% crops. I'm hoping to redo the test after I get myself another proper tripod with a macro focusing plate.
     
    • Like Like x 1
  13. shutterduster

    shutterduster Mu-43 Regular

    144
    Feb 8, 2013
    Keremeos, BC. Canada
    Dave T
    Did you 100% crop over the entire watch face to see if there were more accurate focus hits?
     
  14. RamblinR

    RamblinR Mu-43 Top Veteran

    545
    Aug 16, 2012
    Sunshine Coast, Qld Australia
    Maria
    Thank you very much for this post.

    I have been considering getting a dedicated macro but it is expensive when I want it for macro work only as I have the 45 and 75 for normal shooting requirements.

    From the images you have posted I think these extension tubes will be perfect for the close up photography I am wanting to do.
     
  15. RamblinR

    RamblinR Mu-43 Top Veteran

    545
    Aug 16, 2012
    Sunshine Coast, Qld Australia
    Maria
    Thought a bump was due for this in case some are looking for extension tubes as this thread is hard to find in the search.
     
  16. kiwirobfinland

    kiwirobfinland Mu-43 Regular

    114
    Jan 31, 2016
    rob
    i have been using the 10 mm as a focus limiter on my 40-150 mm pro to get small bugs in flight shots
    20160131new160.
     
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