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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 31 Jan 2012 (Tuesday) 11:43
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Sigma lenses and Full Frame compatibility?

 
funphotoexpress
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Jan 31, 2012 11:43 |  #1

Hello all, I've tried to find this info on here and haven't had luck. I need to get a lens with 17/24-70 focal length and stabilization. The thing is I can't figure out which sigma lenses are FF compatible and which ones aren't. I'm looking toward the sigma 17-70 os, or 17-50 os maybe but i prefer the 17-70 as i already have a 17-40 F4 L. any ideas? I'm shooting with a 5d mark ii. thanks




  
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LightRules
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Jan 31, 2012 11:44 |  #2

Don't get any lens that says "DC" in it. Otherwise you are fine. So avoid these (external link).




  
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BryantFC
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Jan 31, 2012 11:45 |  #3

LightRules wrote in post #13800589 (external link)
Don't get any lens that says "DC" in it. Otherwise you are fine.

+1. DG lenses are for full frame and can be used on crop as well.


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lomenak
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Jan 31, 2012 11:46 as a reply to  @ LightRules's post |  #4

no 17-70(50) for FF. you will be looking for the 24-70 range - any of them are FF compatible..




  
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LightRules
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Jan 31, 2012 11:46 |  #5

BryantFC wrote in post #13800593 (external link)
+1. EX lenses are for full frame and can be used on crop as well.

Actually "EX" can be FF or APS-C (e.g., 17-50 EX DC). The main thing is to not get any lens with "DC".




  
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BryantFC
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Jan 31, 2012 11:47 |  #6

LightRules wrote in post #13800597 (external link)
Actually "EX" can be FF or APS-C (e.g., 17-50 EX DC). The main thing is to not get any lens with "DC".

Fixed that lol. Alot of acronyms to remember!


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funphotoexpress
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Jan 31, 2012 11:51 |  #7

oh so those letters actually mean something! thanks guys!




  
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CaffeineSTAT
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Oct 01, 2013 14:46 as a reply to  @ funphotoexpress's post |  #8

sorry to resurrect an old thread...what a jerk! :mad:
but if I use a 17-50 EX DC on a full frame will I just get vignetting or will it actually hit the sensor? and could that potentially damage the sensor?




  
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LV ­ Moose
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Oct 01, 2013 15:07 |  #9

CaffeineSTAT wrote in post #16338778 (external link)
sorry to resurrect an old thread...what a jerk! :mad:
but if I use a 17-50 EX DC on a full frame will I just get vignetting or will it actually hit the sensor? and could that potentially damage the sensor?

If it's like using an EF-S lens (10-22 for example) on a full frame, it'll hit the mirror when pulled back to wider angles.


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SMP_Homer
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Oct 01, 2013 16:03 |  #10

Canon EF-S lenses have a mount that will not fit a full frame camera
3rd party vendors have a mount that will fit, and as far as I know, none of the 3rd party non-ff offerings will get in the way of the mirror


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elleana
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Oct 01, 2013 19:42 |  #11

Anyone have samples on how the vignetting will look? And are there any particular lenses which are worth using at FF notwithstanding the vignetting?


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TheAnt
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Oct 01, 2013 20:37 |  #12

1. There will be a black circle. The image circle isn't big enough to display everything.

2. No. Don't use non-FF lenses on FF cameras. They will damage the mirror.


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gabebalazs
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Oct 01, 2013 21:00 |  #13

TheAnt wrote in post #16339576 (external link)
1. There will be a black circle. The image circle isn't big enough to display everything.

2. No. Don't use non-FF lenses on FF cameras. They will damage the mirror.

While in most situations I don't recommend using non-FF lenses on FF, neither of these statements above are absolutely true. It depends on the lens.

For instance, the Tokina 11-16 2.8 is a lens for crop sensor cameras but it will not damage the FF mirror and will not even vignette on full frame at 15-16mm (perhaps some very minor vignetting.) The same is true to the Sigma 18-35 1.8. At 35mm its image circle actually fills the FF sensor, making it a pretty nice 35mm 1.8 "prime" lens on FF. I also know that the my Sigma 10-20 does mount on my 6D and does not damage the mirror. So it cannot be universally declared that all crop lenses will damage FF mirrors.

Canon EF-S lenses are some that may cause damage, that's also why they cannot be physically mounted on FF cameras. Their rear elements protrude out more than third party crop lenses'. Third party manufacturers do mount FF cameras, and whether they damage the mirror probably varies but I'd say most of them do not. DISCLAIMER: don't take my word for it, and don't try this at home if you don't want to risk damaging your FF mirror.


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elleana
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Oct 01, 2013 21:22 |  #14

For the 18-35 - how does it do from 18 to 34 then?


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gabebalazs
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Oct 01, 2013 21:43 |  #15

elleana wrote in post #16339667 (external link)
For the 18-35 - how does it do from 18 to 34 then?

Vignettes the most at 18mm, gradually less vignetting to 35mm.


SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
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Sigma lenses and Full Frame compatibility?
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