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07/22/2008 02:12:44 AM · #1 |
| ok so i am interested in getting a set of extension tubes for both my mom and i to use. anyways, my awesome photo instructor (tom ulrich) told me i could get a cheap set of 3 for $60 and not worry about it being cheap cause there isn't any glass involved. so i went to my local photo place and they refuse to sell me anything cheaper then 1 tube for $90, and they are the cheap ones. and suggestions? oh, and is B&W and online photo place? Has anyone heard of it? |
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07/22/2008 02:20:03 AM · #2 |
| I don't know much about extension tubes, but it seems to me that the ones you are looking at might cause some vignetting in the corners, don't trust me on that. And the retailer you're thinking of is B&H |
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07/22/2008 02:26:32 AM · #3 |
$90 for one is a little steep.
I have the Kenko set and if I recall correctly paid about $125 CDN for a set of three.
B&W is a brand of filter. B&H is the online photo place (as already mentioned above).
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07/22/2008 03:04:59 AM · #4 |
that sounds about right for the 25mm canon one, there is a 12mm one which should be cheaper
You can get really cheap ones for about £10 (~$20) which are manual focus only and you cannot change the aperture as there is no connection to the lens
The Kenko set seem the best value for money and they have the electrical connections
One thing to note with tubes is the range you can shoot from is limited, ie. they will not focus from more than a few feet away ... this gets much less with the longer tubes
I've never seen any vignetting having used some really cheap ones (which I only used a couple of times before I bought a 12mm canon for £30 (~$60) as I wanted to be able to control the apperture etc |
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07/22/2008 10:25:51 AM · #5 |
I bought the Kenko set for Canon from Adorama for $170 a few weeks ago. My impressions are:
- They let you focus amazingly close, but the DOF is very narrow, and of course, you lose focus to infinity (or anything past a few feet).
- They work just as well (if not better) with my $80 50mm prime than my $1100 24-105L.
- See my review/test images here.
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07/22/2008 10:57:20 AM · #6 |
| wow ok thanks. i shall show my mum this forum and let her decided as to whetheror not to buy. thank you all for your input |
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07/22/2008 05:18:53 PM · #7 |
Shame you have Canon... The great thing about Nikon is there's all these old manual focus ones lying around from ages ago. I've picked up 2 for a total of $20 USD. Hell, the other day I could've bought 2 more plus a MF 55mm f/3.5 macro lens for only $80. It's a shame Canon changed their lens mount...
EDIT: I suppose I forgot to say anything about then. I use them with my 50mm f/1.8 and the working distance is very close, but you still achieve some extreme sharpness and detail. I usually mount my SB-800 on camera tilted down and I get great, unblocked lighting, even though it's so close. If you can find them cheap, I'd certainly get a set. It's like a ghetto, cheap macro lens. Which, I might add, is awesome :D Almost all my macro stuff if you go to my Flickr at this address is shot with my 50mm and an extension tube.
Message edited by author 2008-07-22 17:25:48. |
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07/22/2008 05:43:12 PM · #8 |
ok call me silly but what exactly is an extension tube?
(yes there is still A LOT i dont know)
Message edited by author 2008-07-22 17:43:21. |
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07/22/2008 05:52:58 PM · #9 |
Originally posted by Sugarpie:
ok call me silly but what exactly is an extension tube?
(yes there is still A LOT i dont know) |
A piece of equipment that goes between the lens and the camera. No optics, but changes the focusing range to much closer than without it. The longer the tube, the closer the focus. Should retain all the functions of the camera.
Message edited by author 2008-07-22 17:53:39. |
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07/22/2008 05:53:31 PM · #10 |
Originally posted by Sugarpie:
ok call me silly but what exactly is an extension tube?
(yes there is still A LOT i dont know) |
They are tubes that put the lens further from the sensor. They increase magnification factor. They are a nice way to learn macro with without buying a true 1:1 macro lens..
examples......
 
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07/22/2008 05:55:12 PM · #11 |
Originally posted by Sugarpie:
ok call me silly but what exactly is an extension tube?
(yes there is still A LOT i dont know) |
it goes between the camera and the lens. there is no glass in. It increases the magnification of any lens. the down side is the range you can focus between is very small |
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07/22/2008 05:55:13 PM · #12 |
So thats how they do it!
You are now watching this tread |
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