lenses for red raven

[Tom Dowler]

It also shows why crop-factors are not a good way to figure things out.

100% this.

Most cinematographers know what certain focal lengths look and feel like on S35 plus a couple of other specialty formats, without any mathematics involved.

 

[jordan levy]

exactly, no one is sitting there doing math in their head on set to decide what lens to put on.
know your formats, know your lenses, make pretty pictures.
you can do it with S16, you can do it with 65mm, doesnt matter.

 

[Ebrahim Saadawi]

It makes sense, given that there are multiple different aspect-ratios. Due to the fact that in film wide and wider plays a big role it makes a lot of sense to use horizontal. It's also what people associate in first place with FOV ("wider FOV").
.

No. It only makes sense to say the horizontal FOV on this camera extends beyond the crop factor by #x amount shall you can shoot and view an irregular 2:1:1 aspect ratio (the only way to gain that extra FOV).

Crop factor, how the lenses look on different sensor sizes, is measured by the diagonal length of the sensor in the standard aspect ratio (16:9/10). If a sensor is of an odd shape, too tall, too slim, then it's indicated as an extra option.

The Raven has a 23x10mm sensor. So measuring the crop factor by the irregularly longer horizontal length suspiciously looks like an attempt to make Raven look like s35. It's not. It's smaller. 10mm tall is AF100 sensor length, so I could also use that irregularly small vertical length and make people feel the raven is m43s. It's not.

The Raven sensor is smaller than super35, and bigger than m43s. It will give a noticeable and effective FOV/DOF difference over an Epic, a C1/300, an Ursa, a Varicam35, cion, alexa, etc.

So let's be clear about that and make buyers aware of exactly how much they'll offset in their lenses to get their known images. Pretty basic and needed help isn't it? Is there something wrong with that?

If there are those of you who don't want to pay attention to the crop factor numbers at all and just try, absolutely fine. But some of us must get accurate numbers and be absolutely sure on how the lenses will behave.

Nothing wrong with that, two different approaches for two different people...

 

[Tom Dowler]

Dude, if you love crop factor so much, why don't you marry it

At any rate, none of the rest of us really care about crop factor, what your reference sensor size is, whether it's horizontal, diagonal or doggy style.

But whatever works for you, my man. You want to think about everything as a multiplier to FF35, and that's what works for you, then awesome.

That's just not how most of the rest of us think. No rights or wrongs, just common practice.

 

[Oron Cohen]

No. It only makes sense to say the horizontal FOV on this camera extends beyond the crop factor by #x amount shall you can shoot and view But some of us must get accurate numbers and be absolutely sure on how the lenses will behave.

Lenses will behave the same, lenses don't magically change, what changes is FOV.

The way I do it, and many of my fellow professionals is this:

1) I got in my mind the standard set of lenses for cinema use, so roughly: 18, 25, 35, 50, 85, 100

2) I find out say, that Epic Dragon on 4K will give a slightly tighter FOV with a set of of lenses, so 35mm FOV will look more like 40, 50 FOV more like 60.

Embed it in my mind, done! Now I have a prime set that is slightly wider if I want to match FOV, something like: 14, 21, 28, 40, 65, 90 will be good.

Now, I will admit, I personally try to stir away from cameras that are not super35, because I think it's the prefect balance between looks and practicality, as for Raven, or similar cameras with a tighter FOV per a given lens I will probably try to work more on Zooms. I thinks Angie zooms would be great for budgeted stuff, for EF mount native, Sigma 18-35 paired with some primes or hopefully a improved version II of the breathing 50-100

 

[Ebrahim Saadawi]

Dude

I am at your father's age. Show some decency. I despise being called dude

if you love crop factor so much, why don't you marry it

If you hate Crop factor so much, why don't you sue it?

none of the rest of us really care about crop factor
.

None of the rest of us? You speak in behalf of all of those who ordered the Raven?

Actually with the Raven, it's the most important camera from Red to discuss the crop factor on, simply because most Raven owners will be jumping from DSLRs, 5Ds, 1Ds, C100s. Af100s, FS100, GH4, and this segment of filmmakers rely on the crop factor calculations. So I argue that most of the rest of us really care about crop factor, not none...

2) I find out say, that Epic Dragon on 4K will give a slightly tighter FOV with a set of of lenses, so 35mm FOV will look more like 40, 50 FOV more like 60.

That's using the crop factor.

 

[Ebrahim Saadawi]

Anyhow, the Raven tighter FOV will really benefit from a wide and fast lens. And the

-Sigma 18-35mm F/1.8 is a GREAT "kit lens" for it.

It covers from ''wide enough for most things'' to standard 50mm f/1.8 prime at the long end.

I believe this lens is one that must be in the Raven bag even as a back up given the price. All one needs aside from it is a longer prime if needed, maybe an 85mm, or an ultra wide angle if needed, Tokina 11-20mm f/2.8 is the best complementary lens to the 18-35mm.

So The Sigma when calculated should be quite the only perfect "kit lens" for the Red Raven given the sensor size and even ISO performance.


Remember, A major number of Raven owners are DSLR shooters, who are used to shooting clean 12.800 ISO 1.3x 4K images on a 1DC and clean FF 25.600 ISO 4K on an A7s.

They'll take some time to adjust to how the Raven is used as a proper cinema camera with basically a fixed ISO and quite a different operation method and way of shooting at all.

 

[Michael Reiken]

Why do you say the Sigma 18-35mm a "kit-lens"? I think it's a very pro lens and not like the crap kit EF lens which come with low-end DSLRs...it's an awesome lens

 

[Ebrahim Saadawi]

Why do you say the Sigma 18-35mm a "kit-lens"? I think it's a very pro lens and not like the crap kit EF lens which come with low-end DSLRs...it's an awesome lens

A kit lens is a term loosely used to describe a lens that could come bundled with the camera that's capable of all general purpose shooting demands. By definition, a lens that covers from wide to mid is used for kit lenses.

Kit Lens is not just associated with cheap old 18-55mm Canon EF-S lenses, there are kit lenses that are more expensive than the Sigma 18-35, like the 12-35mm f/2.8 or Canon 24-70mm F/2.8 II L That comes as a kit lens with the C100/300.

So I don't mean cheap or low quality at all. The exact opposite. I am saying the lens will be a perfect companion for use as a standard kit-lens-like usage and most raven pre-orders should order one as well, aside from those who already own a full Cine Prime set from 18 to 135, but these are mostlyWeapon users anyway.


So Lenses are quite an important topic to discuss with the Raven as it will mostly be used with cheap-ish glass.

 

[Klaus F]

Doesn't the Raven come with an active EF lens mount? If so, then the focus ring and IS and AF should work. It needs power to change focus yes, so doesn't work on passive adapters. Just like the Canon 85mm f/1.2 L.

Can some one confirm that the Canon 10-18mm works with the Raven?

 

[Taylor Magyar]

None of the rest of us? You speak in behalf of all of those who ordered the Raven?

Actually, in my experience- Yes. Most of the people hung up on crop factors are the same guys who cant shoot themselves out of a cardboard box. Its an amateur thing to get hung up on. When shooting Slumdog Millionaire do you think that Anthony Dod Mantle started complaining about the crop factor on the Si2K as opposed to Super 35? No, he put the right lens on for the shot and carried on. End of the day its a moot point.

Is this you? https://vimeo.com/ebrahimsaadawi

 

[J.S. Raimundi]

Hi,

I´m looking for a fast zoom for the Raven with Image Stabilization, what are your thoughts?
Thanks!!

 

[John McConaghy]

Not sure where to put this or if it has been previously stated but just figured I'd throw it out there:

The Tokina 11-20 works just fine on the Raven even though it isn't officially supported in the operation guide. I had no errors adjusting iris and the auto focus is pretty smooth playing around with foolcontrol.

Hopefully that helps any of you looking for a wide zoom for the Raven!

 

[Brody_B]

I would say the new Sigma cinema zooms would be the ticket for Raven. Or even their photo versions To stick with the cheaper lens option for the cheaper brain pairing.

 

[Tommaso Alvisi]

Hi,

I´m looking for a fast zoom for the Raven with Image Stabilization, what are your thoughts?
Thanks!!

Canon 17-55 2.8 can't be beaten currently...imho...