FX6: (Experiment) FX6 + CIZ + MTF B4 + 7.6 x 18 Fujinon

[cyvideo]

After seeing the first video listed below, the Newsshooter one, I got curious. It got me thinking how an FX6 might perform with one of MTF's eleven-year-old B4 to E-Mount adaptors. I've had two of these adaptors since the early FS7 days.

Hence, the experiment. I just stuck the camera out the edit suite window and it worked. Far better than I expected in regard to edge sharpness and contrast. I was also surprised how little CA was evident on fine branches against the sky. Overall, a better than expected result. I tried a couple of different B4 lenses. After retesting my results, I found that the CIZ needs to be set to 1.4 or 1.5 to totally eliminate any corner vignetting at all zoom lengths. Most of the vignetting tends to mainly show up at the wide end. This test was carried out with the CIZ set to 1.3.

Summing up. I will try this combo out sometime on a job that requires an ENG servo zoom type capability. If you are not familiar with the old MTF adaptor, the second video is Alister Chapman's review of the MTF from way back when the F3 was the new kid on the block.

Chris Young

Newsshooter Sony FX6 Clear Image Zoom Quality

MTF B4 2/3" to Super35 lens adapter overview

Sony FX6 UHD 50p with Clear Image Zoom set T @1.3 + MTF B4 s35 adaptor + Fujinon 7.6 x 18 zoom lens

 

[Doug Jensen]

Chris, it looks a lot better than I would have expected.

 

[cyvideo]

Chris, it looks a lot better than I would have expected.

Sure, better than I expected. Quite useable on some jobs. I also tried the S35 crop mode just to how it would behave and look in HD. Again, surprisingly acceptable. The mind snapper is the CIZ in S35 HD mode gives you a 2 x zoom. It makes the old 18 x a parfocal, constant aperture 36 x zoom! I sold my Canon 22 x as it made more sense to recover the money tied up in it as it was getting little use. Imagine that as a 44 x ENG type lens?!

Chris Young

How I mounted the adaptor:

 

[Zachadoodle]

This is definately interesting, because imagine what sort of neat zooms you could get with these lenses.

 

[cyvideo]

Right. To follow up a bit further, I thought I would try a few more experiments with this FX6 B4 "Feasibility" testing thing. To that end, I jumped into our back street to shoot a few things. This time I went the full CIZ (Clear Image zoom) of 1.5 x in FF UHD. I've purposely held shots for quite some seconds. The reason being it gives anyone watching this clip time to 'pixel peep' for any reason they wish. detail, fall off, CA issues etc. etc.

I'm a bit surprised the results are as good as they have turned out. Not perfect by any means. But I feel sure enough now that should I need a constant aperture F4.0 parfocal 30-533 mm zoom lens in either HD or UHD I could get away with some shots with this setup without too much concern. If shooting in S35 HD mode, no CIZ zoom is required. The process becomes a purely optical one.

More info in the YouTube description if required.

Chris Young