Questions tagged [extension-tubes]

An extension tube - is used with interchangeable lenses to focus closer, useful in macro photography. The tube contains no optical elements; its sole purpose is to move the lens farther from the image plane. The farther away the lens is, the closer the focus, the greater the magnification, and also the greater the loss of light (requiring a longer exposure time).

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33
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4answers
31k views

How can I calculate what the effect of an extension tube will be?

There must be a mathematical description of the difference that an extension tube makes to a lens -- is it something that can be easily described? (For example, with teleconverters you can say things ...
30
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7answers
47k views

What am I losing when using extension tubes instead of a macro lens?

After playing around with macro photography on-the-cheap (read: reversed lens, rev. lens mounted on a straight lens, passive extension tubes), I would like to get further with this. The problems with ...
24
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2answers
9k views

What are the biggest differences between Reversal Rings, Extension Tubes and Macro Lenses?

As far as I understand all three options help you do macro photography but are their other reasons for having the three different items? I figured reversal rings and extension tubes were just for the ...
23
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3answers
4k views

Which suits better for hobby usage: extension tubes vs. close-up filter?

I am looking to do a little macro work, but am not ready to invest in a macro lens. For hobby work like photographing flowers and such would it be better to invest in a set of extension tubes or in a ...
20
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1answer
865 views

What are Extension Tubes?

What are Extension Tubes?
14
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8answers
8k views

Macro photography with an ultra-wide lens and extension tubes?

While reading some reviews of Canon EF-S 10-22mm f/3.5-4.5 USM, I was a bit surprised to notice that the lens is supposed to be compatible with 12mm and 25mm extension tubes, and with those one should ...
14
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1answer
395 views

What are the limits of extension tubes?

Given lighting is not a problem, can you hit a limit where you have too much extension tubes (a very long tube) and the quality of the image will suffer? For example a diffraction limit will be hit ...
13
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3answers
3k views

Does a camera's crop factor apply to the magnification of macro shots?

If I have a lenses (or in my case extension tubes) that would allow the lens to magnify 1:1, does a 1.5x crop factor body make it really 1.5:1 ?
12
votes
2answers
892 views

Are there any downsides to buying a third party extension tubes for Canon?

I would like to get a little higher magnification out of my Canon 100mm Macro, so I am looking at extension tubes. I know Canon makes the EF25, but it seems pretty expensive considering there isn't ...
11
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1answer
648 views

What is the significance of the typical extension tube lengths?

I've been recently looking into getting an extension tube set for some macro photograpy. I've noticed that a lot of these 3 tube sets (for Canon EOS) have the same, very specific lengths: 13mm, 21mm, ...
10
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4answers
12k views

I have a Canon EF 100mm f/2.8 Macro. How can I get even closer to the subject?

I have had a Canon EF 100mm f/2.8 Macro lens for quite a long time. It is a great lens. I use a 7D as the body, thus I get 1.6x magnification as compared to a "real" 35mm sensor body. While this is ...
9
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4answers
2k views

Why don't lens mount adapters have the same effect as extension tubes?

I use a Metabones adapter for Canon lenses on a Sony body. Why doesn't the lens adapter, which sets the lens further from the sensor, have the same effect as using extension tubes, allowing closer ...
9
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4answers
5k views

How do extension tubes affect focusing distance?

How do extension tubes affect focusing distance? More specifically, what I mean to ask is : why does the maximum focusing distance become shortened when an extension tube is attached? - Why does the ...
8
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3answers
5k views

What extension tube options are there for the Pentax system?

From the reading I have done on extension tubes, I understand that some are just 'dumb' tubes while others have electronics that may allow for metering and autofocus to still work. Further, from this ...
8
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2answers
840 views

Are the contacts on different extension tubes in Soligor Pentax AF set supposed to be different?

My extension tube set (Soligor for Pentax AF + P/KA) was not working correctly on my DSLR, so I checked the tubes, and found an interesting difference. It has three tubes (12mm, 20mm, 36mm). This is ...
7
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1answer
1k views

How *Auto* Are Pentax Auto Extension Tubes?

While asking for extension tubes for a Pentax DSLR, Pentax replied: As requested, please find the following extension tubes available. Product 30535, auto extension tube set B Product 30551, life-...
7
votes
4answers
2k views

Where can I get an extension tube for micro-four-thirds lenses?

There doesn't seem to be any extension tube set listed on the m4/3 section of the Four Thirds website. Olympus makes the EX-25 extension tube but it's for regular Four Thirds lenses. I would like to ...
6
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3answers
507 views

Kenko extension tubes or no name tubes?

I'm planning to buy extension tubes for my Canon 50mm f1.8 lens. I found Kenko for about $150 but then again there are the others which are going for about $10 or less which does not mention of a ...
6
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2answers
533 views

Can extension tubes be used to zoom in in pinhole / zone plate photography?

In a recent question it was stated that You cannot change the focal length of the zone, it is fixed and a characteristic of the physical dimensions of the camera As far as I know, focal length of ...
6
votes
1answer
2k views

How can I calculate the change an extension tube makes to the maximum magnification of a lens? [duplicate]

Possible Duplicate: How can I calculate what the effect of an extension tube will be? My understanding is that extension tubes increase the magnification of lenses by reducing their minimum ...
5
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5answers
2k views

Do official extension tubes degrade image quality?

This is more of an equipment recommendation question than a technical one. I am concerned that the extension may degrade the image quality. I guess my question is two fold. How do extension tubes ...
5
votes
2answers
626 views

Why doesn't an extension tube “crop” the picture?

Ever since I've heard of extension tubes I've been curious if they somehow crop the image that appears on the camera sensor. Based on this YouTube video, the answer is "no" (at least not that I can ...
5
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4answers
632 views

When using a teleconverter on a Canon DSLR, what happens to EXIF data?

When mounting lenses via a teleconverter like the Canon 2x, does the EXIF metadata record this information somehow? Will the recorded focal length be adjusted by the camera or the extender? Is there a ...
5
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1answer
2k views

Why does my camera show “f00” when using extension tubes for shooting close ups?

As a beginner in close up photography, I am using extension tubes with my Canon 550D and standard 18-55mm lens. I noticed that when I use this, the f-stop meter in the camera does not work and always ...
5
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2answers
4k views

Can I use macro extension tubes with telephoto lenses?

What I really want is an extension tube for my telephoto lens. (70-200mm Canon) I have an opportunity to purchase a number of macro tubes. Will those also work with the telephoto lens?
4
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3answers
538 views

Can I combine a pinhole bodycap with macro extension tube to adjust focal length?

I'm interested in trying out a bodycap style pinhole on my DSLR (a Nikon D3300 in my case). Can I combine this with a macro extension tube to adjust the focal length? Calculators such as Mr Pinhole ...
4
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2answers
4k views

What macro extensions tubes are compatible with Nikon AF-S?

I am looking for a set of macro extension tubes for a Nikon D40 that will work with the AF-S system (i.e. will send all the relevant stuff between lens and body for full auto operation). I have found ...
3
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2answers
344 views

What are those little hooks on extension tubes for?

Almost every extension tube with electronics has them. What are they for?
3
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2answers
2k views

Can I use macro extension tubes with a non-manual lens?

I am new to macro extension tubes and I want to buy one but I don't have a manual lens (one where I could change the aperture manually) so I don't know if an extension tube would work with my lenses ...
3
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2answers
1k views

Nikon D7000 and extension tube with 35G 1.8

Recently i purchased an extension tube. (chepest one, with no af..etc..). Just for fun. I attached it to my camera, and than the 35G. Unfortunatelly picture, and finder is dark too. I read somewhere ...
3
votes
2answers
250 views

Which side of a lens-mount adapter to attach an extension tube?

I have an EF to Canon EOS-M adapter. Now I would also like to buy an extension tube to be able to focus closer. I know that this way I'm loosing a lot of light already, but let's not talk about it. ...
3
votes
1answer
248 views

Can Nikon PK-11a extension tubes be used with G lenses, keeping aperture control?

I own a D3200 and 3 G lenses (kit lenses + 35mm f1.8G) and I was wondering if I could use an extension tube PK-11a with them keeping aperture control functional. At Nikon website seems to say no, but ...
3
votes
1answer
995 views

working distance in macro photography

I have Sigma 70-300mm and tamron 24-70mm lens. I want to capture dragonfly and butterflies. I am thinking to get either close-up lens (Raynox DCR 250) or extension tube (XIT Pro Series). But my ...
2
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4answers
2k views

What do I need for extreme macro photography?

I am wanting to venture into some extreme macro photography, specifically insects, such as this shot. After doing some research I have believe that my 1::25 macro lens will be sufficient if I am to ...
2
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4answers
1k views

How do I choose an extension tube for macro photography?

I'm looking for an extension tube for my DSLR. Any suggestions? I see a lot on the internet, but I cannot figure out which is the best.
2
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2answers
1k views

How important is auto focus and aperture control in a macro setup?

I'm thinking of starting some amateur macro photography, and I'm not sure I want to go with macro lenses, due to their price. I currently have the following lenses: Canon EF 50mm f/1.8 II Canon EF ...
2
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2answers
302 views

How can I achieve extreme macro?

Following up from my previous question I would like some advice on getting closer results. Below I have posted an unedited photo of a dead fly I found. What equipment do I need to get his face ...
2
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5answers
3k views

Canon extension tubes - how much extension can be used?

I just purchased two Canon extension tubes, 25mm each, for a Canon 100mm f/2.8L Macro lens. In the instruction manual, it is recommended to only use one extension, not two or more; otherwise, image ...
2
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2answers
108 views

Does the attachment order of Canon teleconverters and adapters matter?

Canon EOS RP manual says that the EF - EOS R adapter should be attached to the lens first, and only then should the entire assembly be attached to the camera. I have understood that the same is true ...
2
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2answers
2k views

What would happen if you put an extension tube on a macro lens?

Will it increase performance of the lens or would it introduce too much distortion?
2
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5answers
16k views

Is there a way to adjust the aperture of a Nikon lens without a camera or physical aperture ring?

If I have a camera that does not have any electronic connection to the lens, is there any way to adjust the aperture on the lens if it does not have a physical aperture ring? We're using a scientific ...
2
votes
2answers
728 views

How can I take wide angle macro photos with a Nikon APS-C camera?

I am looking for wide angle macro solutions for Nikon APS-C cameras to create images similar to these. By "wide angle" I mean 20 mm (30 mm equiv.) or wider, and by "macro" I'm hoping to get close to ...
2
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2answers
5k views

What Camera setting/how to take photos of diamond rings using Kenko Extension Tubes?

I currently have a Tamron AF 28-75mm camera F/2.8 and when I bought that lense the sales person also had me purchase these Kenko for digital Automatic Extension Tube Sets DG (3 rings) 36mm, 20mm and ...
2
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1answer
356 views

F-mount extension tubes suddenly stop attaching to Nikon d5100

I just got a new Nikon d5100. I attached some extension tubes, took some pictures, took off the extensions tubes, took some more pictures. When I tried to re-attach the extension tubes they would not "...
2
votes
1answer
205 views

Are Nikon lenses with electronic aperture compatible with extension tubes with electronic contacts?

Can extension tubes with electrical contacts be used with Nikon's electronically-controlled aperture lenses, such as the Nikkor 16–80mm f/2.8–4E ED VR, when combined with a compatible camera body, ...
2
votes
1answer
485 views

How much does extending affect range of focusing distances?

It's well known that moving a lens away from imaging surface will decrease both minimum and maximum focusing distance. There are times when it would be good to know how much those distances will ...
2
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1answer
66 views

Macro Extension Tube Sizes [duplicate]

I've been researching extension tubes for macro photography and I can't quite get a handle on how the length of the extension tube, combined with the actual lens (say the standard 18mm-55mm) will work....
1
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4answers
2k views

Can I combine extension tubes and macro filters at once to give better macros?

I don't have a dSLR at the moment but am planning to buy one. Wanted to know the cheaper methods to shoot in macro. Will using macro filters and extension tubes concurrently increase the efficiency of ...
1
vote
3answers
401 views

What are these two devices both called “macro adapters”?

I came upon a video and in it there was this what he calls a macro adapter: Raynox DCR-250. And then I searched google 'macro adapter' and saw this video and images of the same device in the first ...
1
vote
1answer
254 views

DSLR body without auto focus + auto focus macro extension tube set + lens without having auto focus motor but focusing screw = auto focus?

I've Nikon D3000. It died not have auto focus motor boot in its body. I've a lens having no auto focus motor within it. I saw some auto focus macro lens extension tube. Does that have autofocus motor ...