Extension tubes
Jun 2, 2012 21:57:58 #
Could someone take the time to explain extension tubes for me. I have an 18-mm, 72-300mm and just ordered a 50mm. What is their purpose and how will they enhance my photography?
Thank you
Pappy
Thank you
Pappy
Jun 2, 2012 22:18:33 #
largeformat
Loc: Bend, Oregon
Extension tubes are made primarily to put on a lens and this allows you to focus closer with that lens then you could normally. I hope this explanation helps.
Jun 2, 2012 22:40:45 #
Jun 2, 2012 23:04:40 #
Jun 3, 2012 00:20:07 #
pappy0352 wrote:
FAQ: Extension Tubes vs Tele-Extenders vs Thread-on "Close-Up" lenses:Could someone take the time to explain extension tubes for me.? What is their purpose and how will they enhance my photography?
http://www.uglyhedgehog.com/t-26496-1.html
Jun 3, 2012 02:48:13 #
St3v3M wrote:
Maybe this will help http://www.slrphotographyguide.com/camera/lens/extensiontube.shtml
The only error in that article is that there now aftermarket (Kenko) that give you auto exposure and auto focus; however autofocusing with tubes is never as good as manual focusing. Since extension tunes result in minimal depth of field, you will most often find yourself focusing by setting the focus at infinity, zoom as necessary and then moving your camera/lens back and forth until the subject is in-focus.
Jun 3, 2012 04:34:53 #
Bill41 wrote:
Actually, with extension tubes, you set your lens to Minimum Focusing Distance (MFD), then move camera/lens combo in-&-out towards subject, not back-&-forth, nor right-&-left, nor up-&-down. quote=St3v3M Maybe this will help http://www.slrp... (show quote)
Jun 3, 2012 08:03:54 #
lachmap
Loc: Sydney Australia
Can you use extension tubes and teleconverters on a zoom lens? eg the 28-135mm on my canon 50d.
Jun 3, 2012 13:16:35 #
lachmap wrote:
Please read Frequently Asked Questions & Answers Concerning Macro: http://www.uglyhedgehog.com/t-36372-1.htmlCan you use extension tubes and teleconverters on a zoom lens? eg the 28-135mm on my canon 50d.
Compared to a prime lens, a zoom is is a compromise optically and weight-wise. Sort of like a station wagon, which is a compromise between a sedan and a van.
My analogy: Using extension tubes on a zoom lens is like putting knobby tires on a station wagon to go off-roading. It can be done, but you will most likely NOT be pleased with results.
Jun 3, 2012 14:13:37 #
Nikonian72 wrote:
quote=Bill41 quote=St3v3M Maybe this will help h... (show quote)
You are, of course, absolutely right. That's what I meant. Sorry if anyone mistook back and forth for in and out. I guess now you realize I don't know a lot of the right way to say things. Please forgive my ignorance. Now I really feel stupid.
Jun 3, 2012 17:48:37 #
You will loose F-stops of light with tubes. If you get the Canon 500d and 250d close-up lenses and screw them on the front you will not have that problem.
Jun 3, 2012 18:01:59 #
Bill41 wrote:
You are, of course, absolutely right. That's what I meant. Sorry if anyone mistook back and forth for in and out. I guess now you realize I don't know a lot of the right way to say things. Please forgive my ignorance. Now I really feel stupid.
You are, of course, absolutely right. That's what I meant. Sorry if anyone mistook back and forth for in and out. I guess now you realize I don't know a lot of the right way to say things. Please forgive my ignorance. Now I really feel stupid.
Guess you should have said forth & back. Geeze nikonian, in & out, back & forth...it means the same thing to most people!
Jun 3, 2012 23:26:05 #
They work great. I try to use as small of an aperture as possible(F8+) to get some depth of field
Jun 3, 2012 23:49:13 #
GoofyNewfie wrote:
Back & forth is non-directional: back to what? Forth to where? In & out is movement relational to subject.Geeze nikonian, in & out, back & forth...it means the same thing to most people!
<Bazinga!>
Jun 3, 2012 23:59:09 #
Nikonian72 wrote:
<Bazinga!>
GoofyNewfie wrote:
Back & forth is non-directional: back to what? Forth to where? In & out is movement relational to subject.Geeze nikonian, in & out, back & forth...it means the same thing to most people!
<Bazinga!>
Exactly! Realtive the the subject, you move backward and forward.
BAZINGAAAA!
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