Micro four thirds discussion
For a long time have been deliberating such I get the leica 12 -35mm f2.8 lens to go with my 12-60 mm f2.8-4.0 lens version?
For the leica 12-60mm has more reach but looses about f1.2 stops @60mm. this has quite a large affect in poor lighting
the 12-35 constant f2.8 means no greater light loss when fully extended. The downside if less reach.
separation between subject and background is not instantly noticable nor is focus speed unless pixel peeping type of study is undertaken.
My conclusion" removing the cost equation" Is not to add the leica 12-35mm lens as it adds little to what i already have and how much poor lighting do I shoot in,
I could go for the cheaper lumix version but gain very little so rejected that as well.
Now if I didn’t have the 12-60 version that would be a different matter and more than likely go for the 12-35mm lens instead.
In micro four thirds terms against full frame camera the mm length his doubled .eg 12mm MFT is 24mm FF
The advantage in going down the MFT route is lenses are smaller and lighter and generally depending on make so are the cameras
Also all makes of MFT lenses fit any MFT camera