Nikon FE with Lensbaby Composer Pro Sweet 35

I got my Lensbaby Composer Pro with Sweet 35 sometimes ago.

This is manual focus lens, 

so to get a sharp and focused picture,

you will need some skill,

this is the problem of manual focus lens,

especially someone like me with spectacles. 

When I look thru the viewfinder,

and thought that the object is in focus,

but actually it is not, 

maybe 0.1 - 0.3m not in focus,

especially when using big aperture from f/1.4 - 4.0.

When I use DSLR last time, 

and I tried with manual focus,

I notice about this problem. 

I thought it is in focus, 

but it is not.

I don't know is it the problem with my spectacles,

or something else,

but I know it is hard to use manual focus.

I love Lensbaby,

but if Lensbaby with auto focus,

surely it will help me a lot to get the sweet spot.

Boom! Sweet spot! In focus!