Canon Digital Photography Forums  

Go Back   Canon Digital Photography Forums > 'Equipment Talk' section > Canon EF and EF-S Lenses
Register Rules FAQ Members List Search Today's Posts Mark Forums Read



Reply
 
Thread Tools Display Modes
Old 29th of October 2011 (Sat)   #1
jaylim0512
Member
 
Join Date: Jul 2011
Posts: 30
Default Specific lens' for full frame vs. cropped frame

I've been reading around and people have been saying some lens' aren't meant for full framed bodies whereas some are meant for it or vis versa with the cropped framed bodies.

Could some explain to me why this is and how I know what to buy for future reference?

By the way, I use a t3i
jaylim0512 is offline   Reply With Quote
This ad block will go away when you log in as member
Old 29th of October 2011 (Sat)   #2
kin2son
User is banned from forums
 
Join Date: May 2011
Location: Sydney, Australia
Posts: 4,546
Default Re: Specific lens' for full frame vs. cropped frame

To keep things simple -

ef-s lens = crop body only
ef lens = both crop and ff

note - ef lens *might* perform slightly different when used on crop vs ff
kin2son is offline   Reply With Quote
Old 29th of October 2011 (Sat)   #3
JeffreyG
"my bits and pieces are all hard"
 
JeffreyG's Avatar
 
Join Date: Jan 2007
Location: Detroit, MI
Posts: 14,242
Default Re: Specific lens' for full frame vs. cropped frame

EF-S lenses may only be used on Canon EOS cameras with 1.6X sensors newer than the 10D. Such bodies are marked with a white dot on the lens mount, similar to the red dot for EF lenses.

3rd parties also offer small format lenses that are only intended for 1.6X sensors as well. These lenses will usually mount on FF and 1.3X bodies (unlike the Canon EF-S) but they will not give full coverage of the sensor.
__________________
My personal stuff:http://www.flickr.com/photos/jngirbach/sets/
Commercial sports:http://girbach.zenfolio.com/
I use a Canon 5D and 1DIV and a Panasonic GF-1 Gear List: http://photography-on-the.net/forum/...postcount=1550
JeffreyG is offline   Reply With Quote
This ad block will go away when you log in as member
Old 29th of October 2011 (Sat)   #4
WhyFi
Goldmember
 
WhyFi's Avatar
 
Join Date: Apr 2008
Location: I got a castle in Brooklyn, that's where I dwell.
Posts: 2,124
Default Re: Specific lens' for full frame vs. cropped frame

There are some lenses (anything with an 'EF-S' designation) that will not physically work on FF bodies because they interfere with the swing of the larger mirror.

Some people insist that some lenses were designed for FF and are not as suitable for a crop sensor because of awkward FoV zoom ranges when you consider the crop factor. Whether or not you find it awkward is personal preference.
__________________
Do what works for you.
Bill is my name - I'm the most wanted man on my island.
Gear | Web
WhyFi is offline   Reply With Quote
Old 29th of October 2011 (Sat)   #5
Bianchi
Goldmember
 
Bianchi's Avatar
 
Join Date: Jan 2010
Location: USA
Posts: 3,527
Default Re: Specific lens' for full frame vs. cropped frame

your t31 is a crop camera therefore you want efs lens , but that doesnt mean you cant
use ef lens on there as well, but you cant use efs lens on full frame camera

so understand if you move to a full frame camera, your efs lens wont work on it .

if you use a ef lens which is 24 105 for full frame the focal distance on a crop is X 1.6 which in reality for a crop is 38.4 168

here is a link you should read

http://usa.canon.com/cusa/consumer/s...vantage_Select
__________________

Last edited by Bianchi : 29th of October 2011 (Sat) at 17:52.
Bianchi is online now   Reply With Quote
Old 29th of October 2011 (Sat)   #6
Sorarse
Goldmember
 
Sorarse's Avatar
 
Join Date: Jan 2008
Location: Kent, UK
Posts: 2,192
Default Re: Specific lens' for full frame vs. cropped frame

Quote:
Originally Posted by Bianchi View Post
if you use a ef lens which is 24 105 for full frame the focal distance on a crop is X 1.6 which in reality for a crop is 38.4 168
I think you meant to say the equivalent field of view. Focal distance doesn't change based on what camera the lens is mounted on.
__________________
At the beginning of time there was absolutely nothing. And then it exploded! Terry Pratchett

http://www.scarecrowimages.com
Canon PowerShot G2
Sorarse is offline   Reply With Quote
Old 29th of October 2011 (Sat)   #7
WhyFi
Goldmember
 
WhyFi's Avatar
 
Join Date: Apr 2008
Location: I got a castle in Brooklyn, that's where I dwell.
Posts: 2,124
Default Re: Specific lens' for full frame vs. cropped frame

Quote:
Originally Posted by Bianchi View Post
if you use a ef lens which is 24 105 for full frame the focal distance on a crop is X 1.6 which in reality for a crop is 38.4 168
No. That would be wrong - the focal lengths will not change, but the field of view will.
__________________
Do what works for you.
Bill is my name - I'm the most wanted man on my island.
Gear | Web
WhyFi is offline   Reply With Quote
Old 29th of October 2011 (Sat)   #8
Wilt
Cream of the Crop
 
Wilt's Avatar
 
Join Date: Aug 2005
Location: California
Posts: 33,147
Default Re: Specific lens' for full frame vs. cropped frame

The Image Circle size (how big of a circle is filled with light at the focal plane) either covers or does not cover the different size frames of APS-C vs. FF cameras. The circle can be smaller and still cover 15x23mm (approx) size of APS-C, compared to the 24x36mm size of FF frame.

Generally, it is the image circle size which is designed to cover 24x36mm or not. EF-S is the designation by Canon for lenses which would not cover 24x36mm. EF-S lenses have a number of other characteristics which make them not suitable for FF cameras.

Examples of other Canon EF-S differentiators,
1) how far into the camera body that the rear optic protrudes,
2) whether or not the lens mount can be inserted into a FF body.

Other manufacturers have only the Image Circle as the only differentiation, not matching Canon's other differentiators. Other designators by other manufacturer are used to indicate 'limited image circle size', like Tamron uses 'Di-II' for this.
__________________
Canon dSLR system, Olympus OM 35mm system, Bronica ETRSi 645 system, Horseman LS 4x5 system, Metz flashes, Dynalite studio lighting, and too many accessories to mention
Keep POTN alive and well with member support http://photography-on-the.net/forum/donate.php

Last edited by Wilt : 29th of October 2011 (Sat) at 19:39.
Wilt is offline   Reply With Quote
Old 30th of October 2011 (Sun)   #9
SkipD
Cream of the Crop
 
SkipD's Avatar
 
Join Date: Dec 2002
Location: Southeastern WI, USA
Posts: 19,702
Default Re: Specific lens' for full frame vs. cropped frame

Quote:
Originally Posted by jaylim0512 View Post
I've been reading around and people have been saying some lens' aren't meant for full framed bodies whereas some are meant for it or vis versa with the cropped framed bodies.

Could some explain to me why this is and how I know what to buy for future reference?
Other than the fact that Canon EF-S mount lenses cannot be used on cameras other than those which they were designed for (APS-C format cameras beginning with production of the 300D - the original "Digital Rebel"), the majority of the recommendations that I believe Jay is referring to come from people's personal preferences as to focal length ranges that they prefer to use.

A typical example that we see frequently is "the 24-70 is not a good lens to use on a 7D". These folks suggest, instead, the use of a lens with a range of 17 or 18 mm to maybe 50 or 55 mm because the "24-70 is not wide enough on a 'crop' camera". This sort of recommendation should be totally ignored, in my opinion, because it's really based on personal preference. I, for example, find my 24-70 an extremely useful focal length range for use on my 20D.


Quote:
Originally Posted by Bianchi View Post
if you use a ef lens which is 24 105 for full frame the focal distance on a crop is X 1.6 which in reality for a crop is 38.4 168
For the newbies - this information, as presented, is quite incorrect.
__________________
Skip Douglas
A few cameras and almost 50 years behind them .....
..... but still learning all the time.
SkipD is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
What is the perfect 5 lens combo for members with both Full Frame and Cropped Bodies rayman102 Canon EF and EF-S Lenses 59 27th of March 2013 (Wed) 06:19
Full Frame vs Cropped Sensor w/ Telephoto Lens SoonerPride316 Canon EOS Digital Cameras 51 29th of March 2011 (Tue) 08:43
85mm: Cropped Vs Full Frame Mark Brim Canon EF and EF-S Lenses 65 23rd of November 2010 (Tue) 21:44
Full frame vs. cropped frame Shanna Canon EOS Digital Cameras 11 25th of April 2008 (Fri) 16:11
full frame + cropped rick j General Photography Talk 6 14th of October 2007 (Sun) 18:50


All times are GMT -5. The time now is 21:54.


Powered by vBulletin® Version 3.6.12
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
This forum is not affiliated with Canon in any way and is run as a free user helpsite by Pekka Saarinen, Helsinki Finland. You will need to register in order to be able to post messages. Cookies are required for registering and posting. HTML in messages is not allowed, plain website addresses are automatically made active by the board.