Questions tagged [canon-ef]

The Electro-Focus (EF) mount has been the standard lens mount for Canon cameras since it's introduction in 1987.

2
votes
2answers
690 views

Canon EF 24-105 IS L manual focusing - is it a problem?

I never really used manual focusing before, so I only noticed it now: when I switch to MF and slowly turn the focusing ring, nothing happens at all. The ring turns and turns but nothing else happens. ...
0
votes
1answer
1k views

Will a Canon XL1s lens work with Canon EF mount cameras? [duplicate]

Would I be able to use a Canon XL1s lens on a Canon EF-mount camera, such as the 5D, without an adapter? I'm looking to purchase one for my camera but I'm not sure if it will work.
2
votes
3answers
5k views

Are there drawbacks to using a lens adapter?

I am considering buying Super-Takumar 28mm f3.5 M42 and using an M42 to EF adapter to attach it to my Canon Rebel T3. Are there any significant drawbacks I should take into account before doing this? ...
-2
votes
1answer
176 views

Is the Canon EF 50mm f/2.5 Compact Macro compatible with the Canon 6D body?

I am planning to buy this lens for my 6D. Will they match?
3
votes
1answer
627 views

Helios 44-3 mounted on Canon 5D. Did I get the wrong adapter?

In the mail today I received from eBay a Super Takumar 35mm f/3.5 Helios 44-3 f/2.0 M42 to Canon EF mount I mounted the Super Takumar on my Canon EOS 5D with the adapter, and it operates fine except ...
1
vote
1answer
198 views

When was the last Canon EF lens with Arc-Form Drive produced?

The first Canon EF lenses for EOS cameras were first produced in 1987 and 1988 when Canon first started the new EOS system. Some EF Arc-Form Drive lenses like the EF 35mm f/2 and EF 50mm f/2.5 Macro ...
0
votes
2answers
744 views

What does it cost to repair a Canon EF 75-300mm f/4-5.6 III Lens?

I recently loaned my Zoom lens out and it came back damaged. What would it cost to repair it? Should I just get a new lens?
2
votes
2answers
5k views

How well do Canon EF lens adapters for Sony E-mount perform? [duplicate]

I have been looking into a potential adapter to use Canon EF lenses on the Sony α6000 and a Google search isn't giving a clear example of a quality adapter. I'm looking to use my husband's EF 24-...
2
votes
1answer
673 views

Can Minolta lenses obtain infinity focus when mounted on a Canon camera?

I know this isn't the ideal setup but I have access to a good selection of Minolta glass so I can try it without any expense. I've got a Canon 600D, a "Minolta Sony Alpha AF Mount Lens to Canon EOS ...
0
votes
1answer
1k views

Will any EF-lens fit on a EOS film camera?

I'm not sure if this already has been asked... Also, it's probably a stupid question. I have a Canon EOS 1000 film camera, which has an EF-mount. I want to use the Canon 50mm f/1.8 II lens, but I'm ...
0
votes
1answer
146 views

F-mount to EOS adapter from Nikon to Canon [duplicate]

I bought a Canon EOS 500N body (EF mount) and I want to also buy a Nikon N65 (F mount) camera. The question is if with this adapter I can use a lens for both cameras? maybe you have some similar ...
4
votes
1answer
237 views

Can removing the lens while pressing the DoF preview button damage the equipment?

I know there's hardly any risk to your equipment when dismounting the lens while the camera is on, but can you damage it if you dismount the lens while the aperture is closed down? With the Canon EOS ...
1
vote
1answer
438 views

Should I buy a Canon Zoom Telephoto EF 75-300mm f/4.0-5.6 III or Tamron AF 75-300 mm f/4.0-5.6 LD? [closed]

Should I buy a Canon Zoom Telephoto EF 75-300mm f/4.0-5.6 III or Tamron AF 75-300 mm f/4.0-5.6 LD? which is better choice?
1
vote
2answers
1k views

Can I use a FD lens + extender with Canon EOS mount?

I have a Sigma 400 mm FD lens which comes with an FD to EOS (EF) adapter. Is it possible for me to attach an extender to it. May be a 2X FD extender and then attach the FD to EOS (EF) adapter. Is ...
2
votes
3answers
21k views

Is there a way to use Canon 18-200 EF-s lens on Canon 6D full frame body?

I just purchased Canon 6D (Full frame camera) and I hate to lose the usage of my simple 18-200 EF-S lens. Any idea if there is a technology that allows me to use the lens on the 5d body?
1
vote
1answer
2k views

Misfunction of Canon EF 50mm f/1.8 on manual focus?

I have a Canon T3i (600d) and two lenses: EF-S 18-135mm and EF 50mm f/1.8. While working with manual focus, I can shoot out of focus (on purpose) with the 18-135 (as expected). But with the EF 50mm, ...
9
votes
3answers
20k views

Why isn't it safe to use EF-S lenses on fullframe?

I've heard that EF-S lenses are not compatible with full frame bodies and that using such lenses could damage the mirror. Are the EF-S lenses not compatible with full frame bodies in terms of "not ...
3
votes
1answer
877 views

Are there any quality 1.7x teleconverters for Canon EF mount?

I am planning to buy a Canon EF 300mm f/2.8 L IS II soon, probably in the first half of next year. I plan for it to be my wildlife and birding lens, and with the 1.4x and 2x Mark III teleconverters ...
1
vote
3answers
289 views

Canon EF 24/28 mm f/2.8 IS USM Autofocus Lenses

Is there a good reason to choose one lens over the other? Granted that the 24mm lens is a bit wider than the 28mm lens but are there any other reasons?
2
votes
5answers
3k views

Tamron 17-50 f2.8 lens vs Canon 17-40mm 4.0 lens

How is the quality of the Tamron 17-50mm f2.8 lens? Specifically, is it comparable to the Canon 17-40mm lens, in the following measurements. Overall quality (Blur, aberrations, etc) Parallel lines ...
-4
votes
3answers
336 views

What lenses could I get for EOS 60D beyond the kit? [closed]

I have just bought the EOS 60D and I am thinking to buy some new lenses. What are the next best lenses to buy to get more detail in my pictures and do they have to be EF-S lenses (like the kit lens ...
8
votes
2answers
53k views

What's the difference between Canon EF-S and EF-M?

What is the difference with Canon EF-S and EF-M lens?
1
vote
5answers
9k views

Why I can't find an A-mount to Canon EF Adapter?

I looked online for an adapter from A-mount to Canon EF but I couldn't find. The Minolta/Sony A-mount flange focal distance is 44.50mm and Canon EF flang focal distance is 44.00mm, in theory A-mount ...
41
votes
9answers
129k views

What is the difference between EF and EF-S lenses?

This is specific to Canon, but what is the difference between EF and EF-S lenses?