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Canon EF-S 17-55mm f/2.8 on EPIC

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Thomas Church

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Will I be able to use this lens with an S35 sensor?

I already know the Tokina 11-16 works with the RED One, but would it work with EPIC?
 
yes
 
At least with the S35 Epics anyway.
 
Epic's sensor is larger than Canon's APS-C. It's actually closer to APS-H. A bit larger actually. Epic is 30mm wide, APS-H is 27mm, APS-C is 24mm. I'm pretty sure the active 16x9 area on the Epic is about 27mm wide, which is basically APS-H.

EF-S weren't meant to be used on APS-H, only APS-C. So in THEORY, I would guess no. In practice, who knows unless you try. The actual image circle produced by a lens, even a zoom lens, vary by focal length.
 
The EF-S 17-55 will vignette full frame 5K for sure.. I tried. Same with the 18-200mm EF-S ( tried that one as well )

The electronics, as expected, do work, but they all clip every corner anything under 40mm at full 5K.
 
Thanks for the reply Jarred!

Have you by any chance tried the Tokina 11-16 on EPIC as well?

I'm asking this because if these lenses don't work it's going to be a little hard getting a wide FOV with SLR lenses and EPIC.
 
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Remember that the FOV is different on the Epic at 5K. So a 24mm lens would give you a field of view similar to what you get with a 20mm on the Red One at 4K. A 20mm would give you a FOV equivalent to what you are getting with a 17mm at 4K.

And of course, if the electronics work, you could still use the 17-55 EF-S at 4K or crop out the vignette in post. Same thing with the 11-16.
 
Interesting.

What's the native AR of Epic? 2:1?

Maybe when you crop it to 2.35:1 or 1.85:1 the vignetting would be left out?
 
canon EF-S lenses are a not par focal and canon EF lenses are par focal lenses am i right? so with EF-S lenses we can't zoom manually in live recording(while in recording). if i am wrong sorry you guys for my ignorance. detail me more on this topic.
thank you all.

EDIT : sorry , lense in topic is EF-S 17-55 mm is f/2.8 . but i made a general comparision of EF-S LENses to EF lenses. excuse me
 
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Thomas Church said:
Thanks for the reply Jarred!

Have you by any chance tried the Tokina 11-16 on EPIC as well?

I'm asking this because if these lenses don't work it's going to be a little hard getting a wide FOV with SLR lenses and EPIC.
Click to expand...

The Tokina 11-16mm produces an image circle of 32mm to 38mm, so you're good to go.
 
Liam Hall said:
The Tokina 11-16mm produces an image circle of 32mm to 38mm, so you're good to go.
Click to expand...

The Tokina Hood vignettes at around 12mm.. if you take it off you are fine.

We have Iris control on the 11-16mm already completed as well.
 
Jarred Land said:
The Tokina Hood vignettes at around 12mm.. if you take it off you are fine.

We have Iris control on the 11-16mm already completed as well.
Click to expand...

Result!!

Thanks Jarred :smile:
 
Jarred Land said:
The EF-S 17-55 will vignette full frame 5K for sure.. I tried. Same with the 18-200mm EF-S ( tried that one as well )

The electronics, as expected, do work, but they all clip every corner anything under 40mm at full 5K.
Click to expand...

Sweet! I was waiting for a response from Jarred on this. So 4K is theoretically okay to use then with the 17-55.
I own L series glass, but I don't want to wrestle with the crop factor. In the future I will invest in RED PRO PRIMES, but I'd rather start shooting ASAP with EPIC-S and EF-S and add superior Red lenses down the road.

From images I've seen with the 7D and the 17-55, that lens is SHARP. Compared to my Canon 50mm f/1.2L, it dosen't quite get there, but for 4K editing and 1080p delivery I am certain the 17-55 will be MORE than adequate. And then, in the future as 4K/5K becomes more mainstream (as Jim predicts) I will surley have a RED PRO PRIME set by then. At least, that is my EPIC plan for now.

Thank you again Jarred for the response. I want to shake your hand at NAB
 
Jarred Land said:
The Tokina Hood vignettes at around 12mm.. if you take it off you are fine.

We have Iris control on the 11-16mm already completed as well.
Click to expand...

How about the ef-s 10-22?

It's easy to use regular ef and L lenses for normal and telephotos, but the superwides are where the ef-s type lenses become important. The widest rectilinear L lens is a 14mm (there is a new 8-15mm F4 L fisheye). Although presumably a 14mm would have about the angle of view on 5k as an 11mm on 4k. (11.2 to be precise if multiply by 4/5 is the correct way to figure.)
 
Jarred Land said:
We have Iris control on the 11-16mm already completed as well.
Click to expand...

Jarred, if I remember right, you have some appreciation for Nikon lenses. What can you tell us about the Nikon mount? We hear so little about it. How soon after Epic ships might we expect it to be available?
 
This image below was taken with the 1Ds Mark III and the EF-S 17-55 f/2.8 IS USM with a special mount. Looks like 5K barely squeezes in there. 4K is surely fine.
canonefs1755mmlensonful.jpg
 
Andrew Huse said:
This image below was taken with the 1Ds Mark III and the EF-S 17-55 f/2.8 IS USM with a special mount. Looks like 5K barely squeezes in there. 4K is surely fine.
canonefs1755mmlensonful.jpg
Click to expand...

Actually the RED 5K sensor's usable area isn't the full 30x15. It's 5120x2700 maximum active area with 5.4 micron (0.0054mm) square pixels. So it's really 27.648mm x 14.58mm at it's largest.

It doesn't seem like much difference, but it is. Width considered, the 5K full sensor area is similar to Canon APS-H. It's just shorter vertically due to the 1.89:1 aspect ratio of the sensor. The diagonal measurement and minimum coverage circle needed for full 5K is 31.257mm -- not really any different than full-aperture Super35. Just enough where lenses that barely cover S35 will show their tendency to port-hole even more, more of the image will extend into the outer regions of the lens' image circle where there's greater resolution falloff... But most Canon EF-S and Nikon DX format lenses should cover 5K alright, especially at medium and long focal lengths. Some wides have already been confirmed to cover -- like the Tokina 11-16.
 
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