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

Because the Canon EF mount lens "expects" to be further from the sensor than a Sony E mount lens; this is known as the flange focal distance or the registration distance - a Canon EF lens focuses the ...
Philip Kendall's user avatar
13 votes

Cutting lens filter/accessory threads

In addition to filter diameter, you need to specify the thread pitch, the linear (axial) distance the filter, screw, etc. travels for one (or more) full rotations of the thread. For SAE (or SAE-...
scottbb's user avatar
  • 32.8k
12 votes

Can I use a Speedbooster with a Canon EF-S DSLR?

Just FYI, a new EF 50mm f/1.8 STM or a new EF-S 24mm f/2.8 STM is about US$130 (at the time of this writing). That's less than half the price of a Metabones Speed Booster, so your assumption that you ...
inkista's user avatar
  • 52.2k
9 votes
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Can I mount 0.4x, 52mm wide angle lens convertor on Nikon's 18-55mm, Ø55 kit lens?

You would need a step-down adapter, such as this with a 55mm thread into your kit lens, then a 52mm thread for the wide-angle converter. Unfortunately... you will very quickly discover that these ...
Tetsujin's user avatar
  • 23.4k
7 votes
Accepted

Can I adapt/use a crop lens on an full frame body without vignetting?

It's not an "effect". It's an actual vignette, because the lens's image circle is too small to cover the larger sensor. No adapter in the world will fix this and still maintain the same light ...
inkista's user avatar
  • 52.2k
6 votes

If I adapt an EF circular fisheye lens to EF-M mount, will the image be cropped?

It will work as expected. Any fisheye that projects a circular uncropped image on an EF-S camera does so also when attached to an EF-M mount with an EF/EF-M adapter. Correspondingly, the image of a ...
JohannesD's user avatar
  • 1,786
6 votes

Can I adapt an E-mount rectilinear lens on a micro four thirds body?

I would suggest looking into a shift or tilt-shift adapter, to mount say a wide-angle Canon EF or Nikon AF-S lens. This way, you have a much wider selection of regular lenses to choose from than just ...
scottbb's user avatar
  • 32.8k
6 votes

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

Why don't lens mount adapters have the same effect as extension tubes? They do. But whether it limits far-focus capability depends on one factor: the difference in distances from the image plane to ...
inkista's user avatar
  • 52.2k
6 votes
Accepted

Will Canon's EF-EOS R adapter work with the new EOS R5 or will I need something else?

I am sure the product specification page has not been updated since the launch and which is why it is mentioning the camera bodies available at around that time. There is no reason for the rf-ef ...
suvartheec's user avatar
5 votes
Accepted

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

Ultimately, we decided to use a Nikon BR-6 Auto Diaphragm Ring combined with a BR-2A Lens Reversing Ring, plus a Nikon AR-10 cable release for setting the aperture. This was the setup: A Nikon lens (...
Frank's user avatar
  • 91
5 votes
Accepted

Is it possible to adapt a Canon XL system lens to a mirrorless body?

TL;DR: even though the shorter FFD of mirrorless cameras solves the infinity focus problem, the small image circle of XL lenses presents the same problems as answered to the referenced question about ...
scottbb's user avatar
  • 32.8k
5 votes
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Can I use a Smena lens on a Nikon DSLR body?

Smena, like most rangefinders, has a very short registration distance (often called the 'flange-focal distance'). I can't confirm the exact number, but I have found plenty of examples of people who ...
Michael C's user avatar
  • 175k
5 votes
Accepted

How to calculate the new focal length when usng a lens mount adapter

Lens mount adapters increase the pool of available lenses we are able to mount on any particular camera body. Adapters are basically mechanical coupling devices; however, some also couple electrical ...
Alan Marcus's user avatar
  • 39.2k
5 votes

Will Canon's EF-EOS R adapter work with the new EOS R5 or will I need something else?

When that product specification page was written, the EOS R was the only RF mount camera available. The RP, R5, and R6 hadn't been introduced yet. The same EF→RF adapters that work with EF lenses for ...
Michael C's user avatar
  • 175k
5 votes
Accepted

Commlite Canon Lens adaptor putting black vignette on photo (EF-EOS R)

It seems your lens is for APS-C format cameras, and your camera is full frame. So, it's not the adapter itself, but the sensor size: Your lens projects an image big enough for APS-C sensors, but too ...
vsis's user avatar
  • 1,251
5 votes
Accepted

What is the crop factor of using Bronica ETR lenses on a 35mm full frame camera?

The crop factor is One relative to full frame because the sensor is full frame. The Bronica lenses will project a larger image circle than is required by the sensor, but 50mm is 50mm. The lens ...
Bob Macaroni McStevens's user avatar
4 votes
Accepted

Is it possible to control aperture when using a mount-adapter?

Is it possible to control aperture while using a mount-adapter and lens which does not have an aperture-ring? Yes, but if you're not using an adapter that does electronic communication between the ...
inkista's user avatar
  • 52.2k
4 votes

Can I use Canon lenses on a Nikon dSLR?

Since the registration distance for the Nikon F-mount is larger than the registration distance for the Canon EF-mount, there is not a simple adapter that will work well, still allow infinity focus, ...
Michael C's user avatar
  • 175k
4 votes

Can I use lens brand X on interchangeable lens camera brand Y?

To add to this canonical question one small tip for if you're dredging second hand stores/vintage markets etc & don't want to have to carry your camera with you to check if a lens will fit... ... ...
Tetsujin's user avatar
  • 23.4k
4 votes
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Does a Ring-Ultrasonic EF-S lens require power to manually focus? (using with adapter)

You can manually focus most, but not all, Canon USM lenses without any power supplied from the camera. In fact, you can manually focus them when they're not even attached to a camera. The EF-S 17-...
Michael C's user avatar
  • 175k
4 votes
Accepted

Mechanical drawings of lens mounts: are they "open source"?

By "open source", which is mainly a term used in software development, I believe you're referring to open standards, which are systems (like a camera mount) that aren't specific to a certain ...
WClarke's user avatar
  • 325
4 votes

Can I use any non-Samsung lenses on a Samsung NX camera, with working autofocus?

I'm pretty sure you're out of luck. Samsung made one mount adapter, the ED-MA9NXK, for Pentax K mount — probably because before NX, Samsung made a few Pentax-compatible cameras and lenses. But even ...
mattdm's user avatar
  • 143k
4 votes

Do Contax G to Leica SL adapters exist?

As you say, since Contax G → Sony E-mount focusing adapters do exist, so it's entirely possible to build one for Leica L-mount (SL/T). According to the Wikipedia table of flange distances, there'...
inkista's user avatar
  • 52.2k
4 votes
Accepted

Are there autofocus-enabled adapters for Olympus lenses on Canon EOS cameras?

The flange-focal distance only differs by a couple of mm between OM and EF mount, which means that the adapters are thin wafers of metal, with no space for adding electronics. It might be possible, ...
junkyardsparkle's user avatar
4 votes
Accepted

Can the aperture be changed when using a tilt adapter without electronic interface?

Canon EF lenses have electronically controlled apertures that cannot be controlled without power. It may be left wide open or stopped down when detached from a camera. There is a hack you can use to ...
xiota's user avatar
  • 27k
4 votes
Accepted

How to take macro photos of microscopy?

Consider using a microscope-camera adapter. You can search your favorite auction site for "microscope camera nikon adapter". I just wanted to double check my reducing set-up before I went ahead and ...
xiota's user avatar
  • 27k
4 votes
Accepted

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

You don't really say, but it seems you have an EF lens and an EOS M camera? They have different diameters, so does it make any difference if I put it between lens and adapter or between adapter and ...
Michael C's user avatar
  • 175k
4 votes

Do mount adapters change the apparent focal lengths of lenses?

The Sigma MC11 adapter has no optical elements between the lens and the camera body. It simply extends the distance the lens is in front of the imaging sensor of the shorter 18mm registration distance ...
Michael C's user avatar
  • 175k
4 votes
Accepted

How much shift will I have using Canon tilt-shift lenses on a Hasselblad x1d with an adapter?

The Hasselblad X1D II has a 43.8mm x 32.9mm sensor. That computes to a diagonal of just under 55mm and an aspect ratio of 4:3 or 1.333:1. With the two lenses in question, and assuming you want to ...
Michael C's user avatar
  • 175k
4 votes

Why are adapters for slightly too-short backfocus lens mounts not made with just a thick glass window instead of a lens element?

Camera lenses are converging lenses, meaning they have positive power. A simple convex lens will do this job, however, the image is flawed. I am talking chromatic aberration whereby each color will ...
Alan Marcus's user avatar
  • 39.2k

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