TheEmrys wrote:
Dave Sanders wrote
TheEmrys wrote
But the anodization filter isn't adjustable, which is my entire point.
Dave Sanders wrote
TheEmrys wrote
AlexLF wrote
I really need 85mm f/1.2 ! Preferably, the DS version - with Defocus Smoothing! Ah... that would be great That would be an STF. But they really need to bring back the manually adjustable STF. It is such an benefit, even if it means its a MF lens. I think the 100STF is proof that AF works just fine, so I don't think it needs to go back to being MF. Starting with a fast 85/1.2 would make it a more useful lens - that would mean a T stop of around f/2.4.
I'd love to see a wide STF...start with the 35/1.4? I had the Minolta 135 STF - I have no memory of the apodization filter being adjustable. You could manually control the T stop (aperture), but you can on the 100STF as well. The old 135 had two apertures blades, but they were for M or A mode. Nikon and Canon have made lenses with control over spherical aberration, but that's a very different thing. I owned it as well. And it was completely adjustable. That was the T# adjustment ring. The f/# was still adjustable through the camera body.
Well, that's just adjusting the aperture. Given the fixed nature of the apodization filter, that adjusted the strength of the effect, but it was still just adjusting the aperture, not the filter. By that standard the 100STF is adjustable as well.
EDIT: I realize now I think you're confused by the dual aperture nature of the lens. The manual ring controlled the stepless and very circular 10 bladed aperture, the other 9 bladed and less circular aperture was controlled by the body. When you set the manual ring to 'A', the 10 bladed aperture was wide open, and the 9 bladed aperture controlled by the body was in use. When you moved the manual ring off 'A', the 9 bladed aperture was wide open, and aperture was controlled by the ring.
Only one aperture was in use at a time, and both only adjusted aperture, not filter effect. The filter is a permanent lens element, basically graduated ND, and it's strength was related to the aperture used. The 100STF functions this way as well, just without two apertures.
Anyways, it was an odd design choice, and I always felt that the manual 10 bladed aperture should have been the only one. I guess they felt users wanted the option of an automatic aperture controlled from the body.