mercer

This would be a good resource to find out from I think.
He does proper conversions so you could have yours done without having to scour for a pre-converted lens.
http://aiconversions.com/index.html
I'd also ask Leitax the question that if you do get it converted would it then be possible to use their conversion kit.
If they say it is then I'd be tempted to ask the converter guy the question if you buy the Leitax kit could you send it to him and he does the whole job for you ?
Other than that, I guess you'd have to find one of these typical non-ai conversion experts to see what they think 
 

Camera showed up early! 😁 Feels good in hand

I can't speak for anybody else but I'm certainly not saying that.

The "Crop" reference is in the stills section, not the Movie Recording section.
The figures in brackets after each primary resolution such as this :

Are indicating what the resolution will be in crop mode if use an APS-C lens (which Sigma refer to as DC lenses for their own brand) hence this indicator at the top of the listings.

An unfortunate translation with "DC Clop Mode" as it should of course read "DC Crop Mode".
If you look at the spec for their SD Quattro H, they illustrate this a bit more clearly as its on a separate tab but if you open both you will see the same process, albeit with a smaller reduction as it is not being based on a FF sensor as the SD Quattro H is an APS-H.

 

Thats what I said.
In 1981.

Yep, because you wouldn't want to risk any of it being out of focus.

It records out, via USB-C, to Samsung T5 SSD drives... it doesn’t get much smaller than that.

I think it’s important to first note that I’m a narrative hobbyist with a long term goal of producing a few short films and a feature film as time and money permits. I’m more interested in composition than resolution, but consider myself a writer/director more than a cinematographer. 
With that being said, I love lenses and through the years I have tested nearly every major brand of vintage lenses on most modern mounts. When I finally settled on a camera, I learned that going native, whenever possible, was the best option, and most of the time, a zoom lens allowed me the freedom to concentrate on the creative. But there aren’t many zoom lenses that offered the MUST HAVES for handheld, guerrilla shooting my style and circumstance requires...
• size and weight
• good image stabilization
• fast aperture
It was easy to get one or two of the three, but that elusive third usually ended up being the dealbreaker. And when you added the cost of a good zoom lens, it was difficult to compromise on even one of those.
So, I moved onto the single prime concept of shooting, which I really enjoy from a creative stance. I’m pretty steady handheld, up to about 35mm, which happens to be the sweet spot for my point of view. And if I use native Canon glass with IS, I usually don’t need any secondary support other than a neck strap.
But even the single, prime concept doesn’t feel perfect for my circumstances so I’ll most likely end up compromising my MUST HAVES and replace a few of my prime lenses with a slow zoom and end up with a couple fast modern primes, a couple fast vintage primes and a zoom.
As I get older, I realize this never ending pursuit for the best lens or best camera or highest resolution is the antithesis of creativity and stagnates the art and craft of filmmaking.

It records out, via USB-C, to Samsung T5 SSD drives... it doesn’t get much smaller than that.

Price with 45mm 2.8 is pretty good, like more than 50% off the lens

Nope, they raised enough money to pay the codec consortium, aka the Illuminati, the 24 cents for 24p.
I don’t think he was being pro-Canon here... it’s like the folks that say, Canon isn’t withholding features, that wouldn’t make any sense... they just don’t have the tech to do it. 

I don't want to put his name in case people googling him end up here !
If you put "Nikon 50mm 1.4 K Non-Ai to Ai Conversion" in YouTube you'll find him.
Tune in next week for "3D pop from Zeiss lenses - is it a myth?" with your host Ted Bundy.

Hahaha...
Leica Summicron... as sharp as a knife - subscribe to John Wayne Gacy 
Tasty Images with Jeffrey Dahmer
How to gut a lens that will not be blamed for nothing ... From Hell with Jack

I don’t know, I’d still suggest the Cine version in EF if he wants a declicked aperture. I’ve had a couple of the M4/3 Cine lenses in the past and didn’t mind the geared focus ring when focusing by hand.
The other option would be the Fotodiox Viselex adapter that has a built in variable ND filter... I assume Auto SS would work the same???
That’s a nifty little set up... I used to use focus levers when I was a responsible tripod user and I can see how those reverse gears would be useful. 

I didn’t realize you shot auto, I just assumed you shot manual.
I think Nikon G adapters have an “aperture ring” and will make all Nikon lenses have a smooth aperture... but I’m not a hundred percent sure on that.

Hahaha...
Leica Summicron... as sharp as a knife - subscribe to John Wayne Gacy 
Tasty Images with Jeffrey Dahmer
How to gut a lens that will not be blamed for nothing ... From Hell with Jack

Nope, they raised enough money to pay the codec consortium, aka the Illuminati, the 24 cents for 24p.
I don’t think he was being pro-Canon here... it’s like the folks that say, Canon isn’t withholding features, that wouldn’t make any sense... they just don’t have the tech to do it. 

I don't mind them either and I think if you're going for a set then it makes a lot of sense, particularly as if you do end up using a follow focus system then it is far easier with having them all aligned.
Yeah, if you don't want to speedboost them (and they are arguably fast enough and have decent enough wide options to not especially need to) then you can use the lens throttle and again, if you go for F mount stills versions, then you can use a very thin F to EF adapter on to it to get click less aperture control of the lens and variable ND behind it.
The only downside to the lens throttles is that there is no fully clear setting so you'll always have some ND in play which may be an issue in very low light but, again, these lenses are fast enough to mitigate it somewhat.
Yes, Auto SS and Auto ISO would still work.
 
 

Yeah, so this is weird.
I was going to say that I'm pretty sure people have modded them to be ai and that would one way forward and that I'd found you a tutorial video on YouTube of a guy doing it.
So, I was idly reading the comments, as you do, and lots of people were commenting about him being a murderer and I was thinking "well its an old lens and I can see why people might think its heresy to be messing with it but calling him a murderer is a bit over the top but hey this is YouTube so...".
Anyway, curiosity got the better of me and I googled his name and it turns out he's an actual serial killer.
 

Nope, they raised enough money to pay the codec consortium, aka the Illuminati, the 24 cents for 24p.
I don’t think he was being pro-Canon here... it’s like the folks that say, Canon isn’t withholding features, that wouldn’t make any sense... they just don’t have the tech to do it. 

Wow, it may sound sad but I’m excited about this. 😁 24p was one of the main reasons I got an R over an RP (besides c-log). I might pick up an RP as a b-cam now. I didn’t see the new M6 mark ii mentioned but hoping it’s included.

Nope, they raised enough money to pay the codec consortium, aka the Illuminati, the 24 cents for 24p.
I don’t think he was being pro-Canon here... it’s like the folks that say, Canon isn’t withholding features, that wouldn’t make any sense... they just don’t have the tech to do it. 

Nope, they raised enough money to pay the codec consortium, aka the Illuminati, the 24 cents for 24p.
I don’t think he was being pro-Canon here... it’s like the folks that say, Canon isn’t withholding features, that wouldn’t make any sense... they just don’t have the tech to do it. 

Nope, they raised enough money to pay the codec consortium, aka the Illuminati, the 24 cents for 24p.
I don’t think he was being pro-Canon here... it’s like the folks that say, Canon isn’t withholding features, that wouldn’t make any sense... they just don’t have the tech to do it. 

I didn’t realize you shot auto, I just assumed you shot manual.
I think Nikon G adapters have an “aperture ring” and will make all Nikon lenses have a smooth aperture... but I’m not a hundred percent sure on that.

This is a 24K camera....

Not cheap though. https://petapixel.com/2014/10/30/41395-thats-much-24k-gold-nikon-df-will-cost/