Andrew M.
04-12-2007, 10:15 AM
ARRI/Zeiss Master Prime 65mm T1.3 Test
As my Test of Ultra Prime 8R lenses, this is not a full review but looking closer at important aspects of the lenses in terms of Misterium 12MP resolving power.
After doing quick test on Cooke S4 65 and seeing that this was the best lenses I tested so far, I decided to test ARRI/Zeiss 65 T1.3.
And good that I did.
Checking first the opinions about these Master Primes lenses on the different forums, I have seen such statements:
Too much contrast, too sharp, lack of nice softness of Cooke S4
Well, is it good or bad?
For digital picture processing the more contrast you have and more linear lenses response is, then easier to process the data in post. The softness color or contrast, you can adjust in post to anybodys liking.
The focus adjustment on these lenses is even more smooth and precise as compare to UP8R that I already tested. Also the lenses have LDS Lens Data System similar to /I of Cooke for recording the aperture and focus settings.
I put it on the projector, used the same black background test chart and I couldn’t believe what I have seen. No chromatic aberration at all at 200Lp/mm and 5.6.
These lines near number 200 are 2.5 micron wide!!
The estimated light modulation on this 200Lp/mm square about 50%
The test pattern shown below is located near the right edge of the charts S35 frame in section E.
Yes, I got good advice from some forums out there, if you are quality freak then don’t touch anything below 50mm focal length and go for the sweet spot.
Now if you look on the 100Lp/mm square it is approximately how Misterium pixels are spaced, one pixel covers the white line and one covers the black line.
And what happens when we will use only red light, well then move to the square marked 50Lp/mm and for sure you will find one red photo-sensor for one white line and one black line there. The same thing will happen for blue only light.
Extrapolation process will take care of averaging pixels here in such away, that we will not go much below the resolving power of less then 80Lp/mm I hope. Also good extrapolation process will remove or smooth out any pattern distortion.
Conclusion here is, that these lenses can deliver easily, 2 times the resolving power of the Misterium.
I also tested this lenses at T1.3 stop and judge by yourself, see picture below.
CA is wide, (see number 2 in 200) though the intensity of CA is low. Easy to hide, on non white or black backgrounds.
I will post the same pictures for UP8R in its section tomorrow so you can compare why I was freaking out once I have seen the outcome of UP8R.
Now 65mm focal length is good for kind of over the street shots and face and shoulder shots and maybe in porno shots so you can see every….just kidding.
You can use it to show real full 4K this way.
I expect similar performance with any other lenses 50mm and up.
And what are we going to do with the wide angle shots?
I will do the Cooke S4 /I 65 test next.
Andrew
As my Test of Ultra Prime 8R lenses, this is not a full review but looking closer at important aspects of the lenses in terms of Misterium 12MP resolving power.
After doing quick test on Cooke S4 65 and seeing that this was the best lenses I tested so far, I decided to test ARRI/Zeiss 65 T1.3.
And good that I did.
Checking first the opinions about these Master Primes lenses on the different forums, I have seen such statements:
Too much contrast, too sharp, lack of nice softness of Cooke S4
Well, is it good or bad?
For digital picture processing the more contrast you have and more linear lenses response is, then easier to process the data in post. The softness color or contrast, you can adjust in post to anybodys liking.
The focus adjustment on these lenses is even more smooth and precise as compare to UP8R that I already tested. Also the lenses have LDS Lens Data System similar to /I of Cooke for recording the aperture and focus settings.
I put it on the projector, used the same black background test chart and I couldn’t believe what I have seen. No chromatic aberration at all at 200Lp/mm and 5.6.
These lines near number 200 are 2.5 micron wide!!
The estimated light modulation on this 200Lp/mm square about 50%
The test pattern shown below is located near the right edge of the charts S35 frame in section E.
Yes, I got good advice from some forums out there, if you are quality freak then don’t touch anything below 50mm focal length and go for the sweet spot.
Now if you look on the 100Lp/mm square it is approximately how Misterium pixels are spaced, one pixel covers the white line and one covers the black line.
And what happens when we will use only red light, well then move to the square marked 50Lp/mm and for sure you will find one red photo-sensor for one white line and one black line there. The same thing will happen for blue only light.
Extrapolation process will take care of averaging pixels here in such away, that we will not go much below the resolving power of less then 80Lp/mm I hope. Also good extrapolation process will remove or smooth out any pattern distortion.
Conclusion here is, that these lenses can deliver easily, 2 times the resolving power of the Misterium.
I also tested this lenses at T1.3 stop and judge by yourself, see picture below.
CA is wide, (see number 2 in 200) though the intensity of CA is low. Easy to hide, on non white or black backgrounds.
I will post the same pictures for UP8R in its section tomorrow so you can compare why I was freaking out once I have seen the outcome of UP8R.
Now 65mm focal length is good for kind of over the street shots and face and shoulder shots and maybe in porno shots so you can see every….just kidding.
You can use it to show real full 4K this way.
I expect similar performance with any other lenses 50mm and up.
And what are we going to do with the wide angle shots?
I will do the Cooke S4 /I 65 test next.
Andrew