Contemplating a couple of Canon lenses, the 90TSE and 135/2L. I have a couple of questions
1. On the 135, I would be funding by selling 70-200f4IS and I do need something around 200. Would the 135 with the 1.4X (Mk 2, not 3) equal the zoom at 200 (well 189mm to be precise)? I would have thought so since could afford to stop down one stop to achieve same effective aperture.
2. Risk of 90 TSE being replaced by new lens like 24 TSE was. However, I don't think this lens needs replacing optically as seems to be considered one of Canon's most stellar lenses. Only reason Canon might bring out new version might be to update tilt/shift mechanism, but I would only want this for tilt, to control depth of field, not shift. Also, I would assume new one would be a lot more expensive.