Samyang 135mm T2.2 vs f2, are they the same lens?

[tomato]

I’m looking to purchase a used Samyang 135mm lens and I have come across one designated T2.2 rather then f2 which I understand is a measure of the light transmittance of the lens taking into account losses through the elements.

Is this an f2 lens and as such would be suitable for imaging? It’s not a Canon mount but that isn’t a problem for me.

Thanks 

[DaveS]

Yes, I should think so. If it's calibrated in T-stops then it will have been made for cine / video use. You might find it has a de-clicked aperture ring.

[vlaiv]

Indeed, I have 85mm T1.5 which is cine version of 85mm F/1.4

De-clicked aperture ring that is a bit light for my liking, but I've found that front aperture mask is better solution for stopping down the lens as blades produce diffraction spikes on stars.

[Alien 13]

As the comments above. The only thing to consider if its not Canon or a Nikon mount is if it has enough back focus especially if it was designed for any of the mirrorless cameras.

Alan

Edited September 1, 2021 by Alien 13

[tomato]

Thanks for the replies.

Yes, the blurb states it is for cine/video use and has a declicked aperture ring.

I note the focus ring is also different to the photo version.

[DaveS]

Yes, the teeth are for a follow-focus unit.

[tomato]

Thanks for the info, I have played safe and gone for the photo version.

[Petrol]

I also played safe and went for the  F2.  It's a mindfield out there

[SpaceTinkerer]

That's an old post but I thought to contribute.

I have the Samyang 135mm T2.2 and it performs perfectly on my modified Canon 6D.

🙂