Incense

by Bart Arondson

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

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

learn more… | top users | synonyms

2
votes
1answer
80 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 ...
0
votes
1answer
64 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
252 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
5k 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
386 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, ...
5
votes
3answers
4k 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
292 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
240 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
2k 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
308 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 ...
4
votes
2answers
8k 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
2answers
876 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 ...
29
votes
9answers
59k 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?