Is it physically possible to mount a manual EF-M lens to a Canon DSLR without an adapter?

No. They are physically different frames, with different dimensions, shapes and sizes. EF-S lens on the left; EF-M lens on the right.

EF-S and EF-M lenses mount side by side; Image from Wikimedia commons

If the lens fits the EF-M mount, it will not fit the EF-S without some form of physical link adaptation. But even if there was such an adapter, it would never reach full focus range to infinity with one, because the depth of the mounts is also different.

The EF / EF-S mount is 44mm deep; EF-M is 18mm. Therefore, any EF-M lens would be sitting 26mm further from the sensor than it is designed to sit on. This would be like using a macro extension tube and would restrict the ability of the lens to focus on the far end. And that distance is probably too big to make up for with a teleconverter element on any adapter.

See also: Can I use X-brand lenses on Y-brand interchangeable lens cameras?

Canon: Is my 50mm lens no longer focally fixed?

I am relatively new to photography and recently bought a canon rebel t7i. I had also purchased the Canon 50mm 1.8 lens to have at my disposal. However, when I first used the lens, it was very "magnified", I knew this is how it should be, as it is a prime lens. Today, I changed my memory card and noticed that the lens is no longer "enlarged". I wonder why this is because I liked what my main lens was like before and I got great portraits of it, but now it is remote and will not "go back" as it was. Please help.

Lens – Manual EF-M Lenses on Canon DSLR – Is it physically, without an adapter, possible?

No, it is not possible.

Canon DSLR bodies have a 44mm flange focal length. This is to make room for the mirror.

The EF-M mount has only a 18mm flange focal length. There is no mirror, so there is no need to make room for it.

The EF-M lens, if mounted on the body of the DSLR, would be too far from the sensor.

In the other direction, things are much better. A mirrorless body can take almost any DSLR lens with a suitable adapter. However, it may be limited to manual focus only.

cleaning: how can I remove a piece of dirt from inside the lens system of a compact camera?


I have a Panasonic Lumix compact camera, which, out of nowhere, caught some dirt between the lenses or the sensor.
I made sure it wasn't in The exterior of the lens.
Zooming (optically) did not change the size or position, but at best it became more or less fuzzy (but never sharp).
This is what the lower left room of a photo looked like:

lower left quarter of a photo

I tried to expose the camera to moderate forces (shake, twist) at different target positions (i.e. optical zoom levels), but the particle did not move at all.
I did not open the camera.

Then when I tried to take another photo to demonstrate the effect, the thing disappeared as suddenly as it came.
Obviously something I did made it move, but I have no idea what.

Years later it happened again. This is the lower right corner of a photo of a white background:

lower right room of a photo

Real question

My problem was luckily resolved, but I wonder what specific efforts I could have made. That is why I am asking: If a piece of land gets stuck somewhere in the optical path of a compact camera, what are the possible actions that can remove it? I'm only interested in solutions that don't involve disassembling the device.

Lens: is the focal range the only significant difference between the Canon EF-S 18-135 IS and Canon 18-200 IS?

As you have already found, they are more alike than different.

One of the most conclusive pieces of information about the comparison between the two can be found in the EF-S 18-135 lens review on the digital image:

While its focal length range is shorter than the 18-200, the 18-135 is less expensive and has similar or slightly better image quality in terms of sharpness and distortion.

I'd take a look at the reviews for both lenses to see which one would best suit their style and price range:

No one knows why Canon introduced both lenses in consecutive years 2008/2009. I guess the price difference is the main factor that many people are considering. The 18-200 costs around $ 600, and the 18-135 is around $ 350, making it a big difference for most people. You would consider which one fits your budget and buy accordingly.

This is a direct IQ comparison of both fully open 18mm lenses:

As others have noted in the comments, other options may be better, like buying a 70-200mm f / 4 without IS, or maybe a 50mm f / 1.8. The options are endless, but I'll keep this answer just focusing on what you're specifically asking.


For me, the 18-135mm is a little bit better IQ at a lower price, so if I just looked at these two lenses, I would stick with the 18-135mm.

Canon: will an adapter with an EMF AF Confirm chip work with my vintage lens?

Yes. The EMF chip, when properly positioned and glued to an adapter ring, will perform auto focus confirmation and communicate EXIF ​​lens information (focal length, maximum aperture, and even the aperture setting used)Yes follow the right steps while shooting) on ​​a Canon EOS digital body (I've used them on an XT, 50D, and 5DMkII). The adapter ring and the lens to which it is connected do not really affect this function. The quality / fit of the adapter ring, however, is independent of the chip. The chip is sold separately from the rings, and can be pasted by anyone.

You can also refer to the EMF chip manual.

However, in my experience, AF confirmation is not as useful for pinning focus with a very thin DoF on a fast lens like Canon's "matte precision" focusing displays (if your camera body allows use one), or live view at 10x magnification or maximum focus and Magic Zoom to the Magic Lantern.

dslr: is there any way to put lens information manually on Canon 60D?

I have several old lenses and since I am mounting them on a digital camera the lens information is not available.

Interestingly, my photos have the information from the last digital lens I used on my camera. This is a little annoying since sometimes I look for my photos and it gives me incorrect information, similarly when people look at those photos they get incorrect information.

How do I manually configure lens information, either on camera or with an app? How do I remove incorrect information from the lens?

My Nikon D5300's zoom ring does not rotate and the camera keeps saying the error lens is not attached

My Nikon D5300's zoom ring does not rotate and an error appears on the camera saying the lens is not attached. I have tried everything. I was zooming for a photo and when I tried to zoom out the zoom ring was not moving. Please help.

Lens Adapter – Nikon TC14E II to Tamron 70-200mm F: 2.8 Converter WITHOUT autofocus

A + TC lens is just a lens from the camera body perspective, so if your + TC lens works on your Nikon, they will work (optically and mechanically) on your GH5. So the question is whether the Nikon TC and a Tamron lens can work together.

Few people seem to be using a Nikon TC with a Tamron lens, mostly they are doing the opposite, a Tamron TC added on a Nikon lens, so if you intend to use CT primarily with the Tamron lens, a Tamron TC would be less expensive and works just as well.

What wide lens do I need for a dslr to get the same image as the iPhone SE?

So I have a fuji camera (mirrorless clipping) with a 35mm lens. What focal length lens do I need to get the same panoramic image as the iPhone itself? iPhone SE has a 4mm lens.