Hi K-H, Thanks for sharing the results. Where is the exit pupil on the Tele Elmar 135mm with the bellows set-up?
Do you have the 100/4 Macro Elmar?
I suspect the results will be surprising with the APO Macro Elmarit 100mm with its internal focusing.
Quite frankly, I am surprised by the results of the NEX-7 going against the 800E.
Hi Vivek:
I don't think there will be any surprises with internal focus lenses. Why? Because the only thing the Speed Booster "sees" is the exit pupil of the attached lens, and the only thing that really matters is the size, location, and "quality" (i.e., the amount of aberration) of that master lens exit pupil. So, unless the internal focus mechanism substantially changes something like the exit pupil location then it shouldn't have much effect as far as the Speed Booster is concerned.
On the other hand, tilt-shift lenses do seem to hold some surprises that I'm still trying to sort out. Don't worry - they do work! And you can even use the full range of motion. In some quick experiments the past few days with a Canon 17mm f/4 TS-E I've found I can use maximum shift (+/- 12mm) or maximum tilt (+/- ~7 degrees) without suffering noticeable vignetting.
But the odd thing is that since the optical axes of the shift lens and the Speed Booster are decoupled the effective amount of shift is scaled by 0.71x. In other words, when I attach a 17/4 TS-E to the SB and shift by 12mm the effect appears to be the same that you would get by shifting a "native" 12mm TS-E by 8.5mm.
Of course, the combination of a 17/4 TS-E and the Speed Booster really does give you a 12mm f/2.8 lens. But that optical axis decoupling results in some unexpected results.
Below is a sample image along with some 100% crops I took with the 17/4 TS-E set to f7 (f/5 on the adapted combination) with a full 12mm rise.