One nice thing about the Canon EOS 40D is that unlike the EOS 20D and the EOS D60 I used before the viewfinder is large and bright (not so large and bright as a full framer like the 5D but..) and is finally bright enough to semi-reliably use manual focus as a serious proposition rather than just for occasionally tweaking autofocus.

Then the opportunity came up to get a EOS to K mount adaptor ring and a 28mm Takumar prime.... given this roughly equates to the FoV of a 50mm "normal lens" on a full frame body I jumped at it... that and curiosity and gadget freakery :)

These shots are just me getting used to a return to what photography was like in the late 70's early 80's when autofocus was something "real photographers" didn't even consider to be worth considering.. it was, in fact, beneath even the concept of contempt.

2 things...
1, these old lenses are hit and miss with some issues of image quality... all the primes I've dragged out and tried are sharp but some have weird arsed colour issues (generally correctable in PP) some have wild chromatic aberration while others are better than I've seen from L series primes, and boke (bokeh/OoF Blur) can range from painful to dreamy ... this one is at the dreamy end of the equation
2, While late 70/early 80's autofocus was not fun, modern Auto Focus is, more often than not, more accurate than I ever was or will be.