User Tag List

Thanks useful information Thanks useful information:  0
Results 1 to 14 of 14

Thread: Extension tubes and filters

  1. #1
    Member littlebrony's Avatar
    Join Date
    17 Jan 2010
    Location
    Brisbane
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Exclamation Extension tubes and filters

    Ok another new question

    what would be a good brand to use?

    and what works best - a filter or extension tubes?

    i am sorry i really have no idea! i wish cameras were easier to use!

  2. #2
    Account Closed
    Join Date
    22 Nov 2009
    Location
    Melbourne
    Posts
    174
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  3. #3
    Member
    Threadstarter
    littlebrony's Avatar
    Join Date
    17 Jan 2010
    Location
    Brisbane
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks - off to have a look ....

  4. #4
    Member
    Threadstarter
    littlebrony's Avatar
    Join Date
    17 Jan 2010
    Location
    Brisbane
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ok so i had a look and it doesn't really make it easier in choosing! I have the 60 mm 2.8 lens

  5. #5
    Who me? dbax's Avatar
    Join Date
    02 Sep 2007
    Location
    Tweed Heads
    Posts
    2,749
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    well I've never used filters for macro work so I can't really compare. I do used extension tubes and find then very easy to use and versatile with the three different sized tubes. I just wonder if introducing extra glass in front of the lens might degrade (soften) the image somewhat? I don't know, just wondering.
    Cheers David.

    Canon 40D/EF-S 17-85 mm IS/Kenko Extenson Tubes/Canon EF 50mm F/1.8 II (nifty fifty)
    Sigma 10-20mm 4-5.6 /Sigma 70-200/ Sigma 1.4 teleconverter/ some Conkin filters | Adobe Photoshop CS6



  6. #6
    Member
    Join Date
    12 Feb 2008
    Location
    Brisbane
    Posts
    7,837
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What are you actually trying to do ?
    Darren
    Gear : Nikon Goodness
    Website : http://www.peakactionimages.com
    Please support Precious Hearts
    Constructive Critique of my images always appreciated

  7. #7
    Member
    Threadstarter
    littlebrony's Avatar
    Join Date
    17 Jan 2010
    Location
    Brisbane
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    kiwi

    take photos like this

    http://www.flickr.com/photos/sakuraa...383246/?page=4

    if you actually click on them - the focus is a bit hit and miss but i would like to master that style of work.

  8. #8
    Ausphotography Site Sponsor/Advertiser OzzieTraveller's Avatar
    Join Date
    12 Oct 2009
    Location
    Forster- Tuncurry, eastern Australia
    Posts
    1,600
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    G'day LB

    May I offer my 2-bob's worth
    Firstly, I have looked at the linked images - whoever belongs to them has done them very well
    I have used both extension tubes & Close-Up Lenses for many years [filters is the wrong title - they are lenses that screw into the filter ring of the main lens]
    Each of these 2 items are very different, they have differing costs & results

    Firstly, Close Up Lenses
    They come in varying diameters, cost about $1/mm of diameter ie- 55mm dia = $55-ish
    They are an inexpensive way to get into good close-up photography, tho they are not as good as a dedicated macro lens [costing $600+]

    Close Up lenses come in several "strengths" called Dioptres
    a +1 lens focuses the camera lens to 1metre
    a +2 lens focuses to 1/2metre
    a +3 lens focuses to 1/3metre [see the pattern?]

    The beauty of Close Up Lenses is that the focus is fixed by the close up lens - not the mms of the camera lens ... I use mine on my big zoom lens that normally could not be used for close ups. So I can get flowers, spiders etc from 1/3 metre away from them, and using the zoom at 200mm - 300mm - 400mm etc to change the size if the subject

    Now Extension Tubes
    You will have noticed that as you focus a camera lens, the lens moves slightly forward away from the camera [not talking zoom here, just focus]
    Thus, in order to change the focus from infinity to closer, the lens is moved away from the camera body
    Extension tubes are designed to do this, a bit greater than the 'regular' focus movement
    Now, when the extension equals the mm of the lens, the size of the subject is exactly life size, ie 1:1 .... so 40mm of extension onto a 40mm lens equals 1:1 image size

    You cannot successfully use extension tubes on a zoom lens - as soon as you zoom to change the image size, you change the mms of the lens, thus changing the focus ... and it becomes a drama

    Does this help at the moment?
    Please come back with more Qs as they arise
    Regards,Phil
    Of all the stuff in a busy photographers kitbag, the ability to see photographically is the most important
    google me at Travelling School of Photography
    images.: flickr.com/photos/ozzie_traveller/sets/

  9. #9
    Ausphotography Regular crafty1tutu's Avatar
    Join Date
    15 Jan 2010
    Location
    Seven Hills
    Posts
    1,791
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have the Kenko macro extentions tubes and I love them. Before I bought my Canon 180 mm 3.5 L macro lens I used them with an old 70-200 Canon lens and found them excellent. I still sometimes use them with the 180 mm lens as well. You can view some of my photos on Flickr with the extension tubes at:

    http://www.flickr.com/photos/8364607...7618658111342/ and

    http://www.flickr.com/photos/8364607...7618658088004/

  10. #10
    Member
    Join Date
    28 May 2010
    Location
    Indigo Valley
    Posts
    322
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I don't have a macro lens as yet and I use the Kenko extension tubes with my nifty fifty,
    I enjoy experimenting with the different magnifications,
    I use manual focus and move the camera backwards or forwards slightly
    until the focus is just right, great for stationary objects.

    Cheers
    Indigo
    CC most welcome

    Canon 7D
    Canon Lens EF 24-105mm L IS USM, EF 50mm f/1.8 II, EF 100mm f2.8 L IS Macro

  11. #11
    Member flyfisher's Avatar
    Join Date
    16 Dec 2009
    Location
    West Wodonga
    Posts
    17
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I too have used the Kenko tubes and they can be purchased reasonably cheaply and are quite effective for macro work.

  12. #12
    Ausphotography Regular wmphoto's Avatar
    Join Date
    28 Aug 2010
    Location
    Perth
    Posts
    708
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Going to revive an old thread rather than start a new one...........

    I just picked up a set of screw in macro lenses (+1, +2 , +4) and thought I would add the results of my first test shots. All of these were taken with all 3 lenses (+7). The statue is about 90mm tall and the crystal at the end of the staff is about 10mm. These photos have not been cropped, they are as taken.

    1/2 sec, F20, 55mm, ISO 800

    DPP_3218 by wozza1607, on Flickr

    1/50 sec, F4.5, 84mm, ISO 800

    DPP_3217 by wozza1607, on Flickr

    1/80 sec, F5, 109mm, ISO 800

    DPP_3219 by wozza1607, on Flickr

    As you can see from the last image, above 100mm is really starting to push their limits.

    1/2 sec, F4.5, 55mm, ISO 800
    This is a handheld capture of one of my fish (about 160mm long)

    DPP_3216 by wozza1607, on Flickr

    So far I'm happy with these early shots and the lenses, but will do some more testing.

  13. #13
    Ausphotography Site Sponsor/Advertiser OzzieTraveller's Avatar
    Join Date
    12 Oct 2009
    Location
    Forster- Tuncurry, eastern Australia
    Posts
    1,600
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    G'day Warren

    Thanks for sharing your results with us ~ they are pretty typical for +7 close up lenses
    While these lenses are very useful to lots of us, [and I use my +3 regularly], when you stack them together you will experience some color aberrations ... as seen around the edges of the crystal (3rd pic)

    Keep on going - it looks like you're having lots of fun with it
    Regards, Phil

  14. #14
    Ausphotography Regular wmphoto's Avatar
    Join Date
    28 Aug 2010
    Location
    Perth
    Posts
    708
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Two more shot at +5 using the 55 - 250 lens (both handheld captures). Images have not been cropped, all up I'm pretty happy with the lenses for $80.


    Grevillea by wozza1607, on Flickr


    Bee by wozza1607, on Flickr

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •