A completely random knock of both the current nifty fifty and the 50 f/1.4 USM -- no internal focusing. In general, I hate non-internally-focusing lens as they have a sliding surface I can't seal with a front element filter, so dust/dirt/etc. gets in there over time.
But on a weird side note, I have also screwed around with goofy bokeh stencils draped in front of the front element to generate OOF areas of a specific shape. (Yes. It's as amateur and cheesy as it sounds -- I don't wanna hear it, it's fun
) However, externally telescoping focus movements makes using those stencils an absolute nightmare to use as they are basically rubber banded down to the outer barrel of the lens. Internally focusing lenses would work perfectly with this, but every time I have a focus distance change with my 50 f/1.4 USM, it pushes the stencil off the front element and it's position and overall effectiveness changes.
So... yeah. Internal focusing, please!
- A
But on a weird side note, I have also screwed around with goofy bokeh stencils draped in front of the front element to generate OOF areas of a specific shape. (Yes. It's as amateur and cheesy as it sounds -- I don't wanna hear it, it's fun
So... yeah. Internal focusing, please!
- A
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