Full frame to Scarlet. How to calculate?

[Thomas Koba]

I've storyboarded a movie with my Canon 5D. I´m using 35 mm for all the shots. What lens will give me the equivalance lens coverage on the Scarlet?

 

[Jaakko Rinne]

Phil Holland has made some nice charts on crop factors and other technical details.

 

[Jesper Sichlau]

1,6 x 35 = 56mm more or less.

 

[Jeff Zueger]

The Scarlet at what resolution?
http://www.reduser.net/forum/showthread.php?66210-Scarlet-X-Data-Sheet

 

[Nick Wernham]

A 22mm lens on a Scarlet at 4k would give you roughly the equivalent field of view on as a 35mm on a 5D or other full frame DSLR. If you want to shoot a bit of light slow motion at 3k with the same field of view then you would need a 17.5 or 18mm lens. Remember that you don't necessarily need lenses that can cover full frame since these are not full frame crops of the sensor. DX-compatible lenses like the Canon EF-S 17-55mm would work just fine, for example.

 

[Jaakko Rinne]

1,6 x 35 = 56mm more or less.

That's the wrong way around. 35/1.6=21.875 would be the answer (at 4K).

 

[Jeff Zueger]

FF 35mm lens at 1.6 crop is 56mm at 4k resolution. How do you figure a crop factor makes it wider?

 

[Nick Morrison]

There needs to be a crop factor sticky. This comes up every week or two.

 

[Nick Wernham]

FF 35mm lens at 1.6 crop is 56mm at 4k resolution. How do you figure a crop factor makes it wider?

Your answer is correct, but it's answering the wrong questions. As I understand it, Thomas is saying that he needs a lens which will provide the same field of view on the Scarlet as a 35mm does on the 5D.

 

[Jeff Zueger]

Ahhhh.. right on. I read that wrong. My bad

 

[Jaakko Rinne]

FF 35mm lens at 1.6 crop is 56mm at 4k resolution. How do you figure a crop factor makes it wider?

The question was what lens on a Scarlet would match a 35mm lens on a 5D.

 

[Thomas Koba]

Great! Thanx guys!

 

[Kemalettin Sert]

whats the crop factor between S35 and FF35?

 

[Andy White]

http://www.abelcine.com/fov/

This is a useful tool for anyone wanting a quick visual comparison.

 

[Jesper Sichlau]

Read it backwards too. A 21mm lens would then probably be the one closest to the 35mm.

 

[Arnold F.]

I would love a crop factor chart. I asked about crop factors a while back and several hissy fits resulted, unfortunately.

 

[David Mullen ASC]

I'm amazed that we already have 2 pages on such a simple topic. Super-35 is 24mm wide, FF35 is 36mm wide -- anyone can do the math! 36 ÷ 24 = 1.5.

So 1.5X is the conversion factor if you want to match horizontal view (which is how I calculate things so I don't have to factor in the aspect ratio, which affects diagonal view.)

The 4K area of the Red One sensor is 22.12mm, so 36 ÷ 22.12 = 1.63.

 

[Jaakko Rinne]

I would love a crop factor chart. I asked about crop factors a while back and several hissy fits resulted, unfortunately.

Phil Holland's excellent charts which include one for focal lengths at different resolutions were linked right in the second post in this thread.