Extension tubes
Nov 15, 2012 19:46:14 #
I picked up my first set of extension tubes recently, but have been unable to utilize them due to my camera apparently not recognizing them, or I've attached them incorrectly. I use the Canon EOS Rebel T3i camera body. Is there something that needs to be done aside from attaching it to the lens and then to the camera body? When I attach them and turn the camera on, my aperture just reads as F00. If anyone can help me out with this if will certainly make my day. Thanks for any kind of help you can offer.
Nov 15, 2012 20:50:57 #
schwanny77 wrote:
I picked up my first set of extension tubes recent... (show quote)
Do they have the full complement of contact points & are they designed for your camera? A photo of the tubes might help. More details are needed.
Nov 15, 2012 21:34:24 #
Two types of extension tubes exist.
The cheapest and most simple design is just an empty tube with a camera mount on one end, and a lens mount on the other. When attached to camera and lens, they cannot communicate with each other, so each exposure is strictly manual, which means that you have to adjust the aperture ring to select f/stop, and you have to select shutter duration on camera, and you have to manually focus lens. This type is called manual tubes or simple tubes.
"Auto" extension tubes contain metal pins and tabs in each end, so that the lens can electronically communicate with camera. This permits auto-focus and auto-aperture (focusing wide-open but closing down for photographic exposure).
Tubes are usually sold in a set consisting of a 12-mm, a 20-mm, and 36-mm (or similar).
The cheapest and most simple design is just an empty tube with a camera mount on one end, and a lens mount on the other. When attached to camera and lens, they cannot communicate with each other, so each exposure is strictly manual, which means that you have to adjust the aperture ring to select f/stop, and you have to select shutter duration on camera, and you have to manually focus lens. This type is called manual tubes or simple tubes.
"Auto" extension tubes contain metal pins and tabs in each end, so that the lens can electronically communicate with camera. This permits auto-focus and auto-aperture (focusing wide-open but closing down for photographic exposure).
Tubes are usually sold in a set consisting of a 12-mm, a 20-mm, and 36-mm (or similar).
Kenko auto-extension tube set (for Nikon mount)
Nov 16, 2012 07:10:20 #
Did you just buy a set of generic extension tubes? I bought a Kenko set (as pictured about) for my Nikon and all of the camera's adjustments of focus and aperture work just fine.
Nov 16, 2012 08:50:08 #
I'm a Nikon shooter and not familiar with your Canon. That said, you might check your menus/camera manual to find how to attach a manual lens (or manual extension tube). Also, check the manual for the failure "F00." My Nikon manual has a series of error messages and what they mean near the back of the booklet. Take care & ...
Nov 16, 2012 12:07:30 #
With a set of extension tubes without the electronics for aperture you have to set the aperture with a lens first, then hold in the exposure simulation button which locks the aperture while you take the lens off. Attach your extension tube, then your lens and you will see it is set to the aperture you previously set. If you want to change the aperture you will have to reattach the lens and adjust as before.
The F00 is showing it cannot recognise the aperture, I get this when attaching my camera to my telescope.
Hope that helps.
The F00 is showing it cannot recognise the aperture, I get this when attaching my camera to my telescope.
Hope that helps.
Nov 16, 2012 16:00:46 #
Waterback
Loc: Alberta, Canada
schwanny77 wrote:
I picked up my first set of extension tubes recent... (show quote)
I have a Rebel XTi with the Kenko extension tube set. If memory serves me correctly, I believe you have to mount the extension tube on the body first and then the lens to the extension tube. Your post seems to indicate that you did it in the reverse order.
Nov 20, 2012 11:56:39 #
Based on what you just told me, I guess I bought the simple tubes. Fortunately, they were cheap. I had noticed there were no contacts and figured that had something to do with it. I will be a better shopper now. Thanks for your help.
Nov 20, 2012 13:19:58 #
Izza1967 wrote:
With a set of extension tubes without the electron... (show quote)
Thanks a lot for your reply. I will give this a shot until I can get myself a set of automatic ones.
Nov 20, 2012 13:33:01 #
since you already have them,why not set your camera to manual and see what you can do with them? mine are manual only, and work just fine.
Nov 20, 2012 14:07:50 #
bull drink water wrote:
since you already have them,why not set your camera to manual and see what you can do with them? mine are manual only, and work just fine.
What he said. I have a set of auto tubes, but almost always shoot in manual mode with them anyway.
Aug 11, 2013 11:57:27 #
Do you find a need for all 3 tubes or do you find yourself using the same one repeatedly?
Aug 11, 2013 12:18:49 #
Jblanke wrote:
Do you find a need for all 3 tubes or do you find yourself using the same one repeatedly?
Depends entirely on the size of the subject and how much you want to show. The three tubes give you 7 choices,
12, 20, 36, 12+20, 12+36, 20+36 and 12+20+36. All three together gets you ridiculously bump up against the lens and stick to the cobweb close, but I usually try several other combos to get what I like.
Aug 11, 2013 12:36:13 #
Jblanke wrote:
On my D5000 (APS-C sensor) with my Nikkor 105G macro lens at MFD, 68-mm (12 + 20 +36) of extension tube yields 2:1 magnification.Do you find a need for all 3 tubes or do you find yourself using the same one repeatedly?
Here is the exercise to prove your own lens mags without & with extension tubes:
FAQ: How to Document Field-of-View of a Macro Lens
http://www.uglyhedgehog.com/t-36370-1.html
Aug 11, 2013 12:39:21 #
Nikonian72 wrote:
On my D5000 (APS-C sensor) with my Nikkor 105G macro lens at MFD, 68-mm (12 + 20 +36) of extension tube yields 2:1 magnification.
Here is the exercise to prove your own lens mags without & with extension tubes:
FAQ: How to Document Field-of-View of a Macro Lens
http://www.uglyhedgehog.com/t-36370-1.html
Here is the exercise to prove your own lens mags without & with extension tubes:
FAQ: How to Document Field-of-View of a Macro Lens
http://www.uglyhedgehog.com/t-36370-1.html
Thanks, Douglas. I have some reading to do.
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