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Questions tagged [extension-tubes]

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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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Why am I having problems focusing with extension tubes?

I am adding Kenko tubes to my Nikon 50mm 1.8 D lens. I need some advice. This is my first time using extension tubes. I can't focus. I'm just getting a blurred image. Any advice would be welcome.
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Laura
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2 answers
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How to calculate extension tube length when the focal length is unknown

A 16mm objective has a minimum focus distance of 1m. When an extension tube is used to decrease the minimum distance to 0.1m, how long is this extension tube? If b_1...
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per persson
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3 votes
4 answers
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Is it worth it to purchase extension tubes instead of a dedicated macro lens?

I have a Nikon D3400 and a limited budget for lenses. I'm using second-hand lenses, but also the second-hand can be quite expensive. I saw that there are quite a lot of extension tubes, especially for ...
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Cristina Marcolin
  • 133
1 vote
1 answer
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What if the lens adapter (tube) is too short?

Adapting SLR lens to mirrorless camera normally needs a lens adapter or simply a tube or a spacer to get the correct flange distance. If the tube is too long it normally loses the infinity focus but ...
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Lucas Hu
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3 votes
5 answers
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Options to increase magnification when the minimum working distance is fixed

I work in a lab which deals with a significant amount of scientific photography. My current situation calls for an increase in magnification, however, there is a physical limit to how close the lens ...
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cmv
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3 votes
5 answers
761 views

Focussing with Extension Tubes

I bought a set of extension Tubes to use with my Nikon D5300 and 35mm f/1.8 lens. However, it seems that the only option to focus is to change the distance to the subject. This is very inaccurate and ...
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jng224
  • 1,608
2 votes
2 answers
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How to take macro shots with extreme magnification?

My current setup for macro shots is a 85mm prime on a fullframe body with 3 extension tubes (about 70mm in total). I do get pretty close but I saw some images of insects that have an EXTREME ...
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Arji
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3 answers
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How can I control the aperture of a Nikon G lens when using extension tubes? [duplicate]

Due to corona lockdown, I'd like to try macro photography. I have two lenses (18–55 and 35 f/1.8) and a Nikon D5300. As I currently do not have the money to buy a real macro lens, I found 3 cheaper ...
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jng224
  • 1,608
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1 answer
287 views

Optically reduce chromatic aberration - is it worth trying?

I have been using this Tamron SP 180mm 1:1 Macro - F/32 lens to digitize 35mm slides. Unfortunately, the lens' chromatic aberration is quite noticeable, when used at 1:1. I have plenty of strobe light ...
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MeSo2
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Blur image with a 1/2" lens on a 1/3" sensor

When I put my 1/2" lens on my 1/2" sensor, the image is perfect, but when I put the same lens on my 1/3" sensor, everything is very blur, even when I focus at maximum, so I need to put an extension ...
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Alfred
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1 answer
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Why is there a maximum focus distance when using an extension tube? [duplicate]

I am using the Nikon D850 together with the Sigma 50mm/1.4 Art and the MEIKE MK-N-AF1-A extension tube(s). During first shots I found out that the combination not only has a minimum focus distance (...
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Alexander von Wernherr
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3 votes
2 answers
483 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. ...
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Adassko
  • 133
2 votes
1 answer
123 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....
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LeoL8t
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2 answers
254 views

Can we use both extension tube and closeup filter at the same time.. Is that possible...? [duplicate]

Extension tube with close up filter...?
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Mukesh A
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2 answers
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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 ...
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juhist
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