I purchased a M39->M43 adapter from Rainbowimaging and when I put my Jupiter 8 lens on, the numbering for F stops are on the right side of the lens and not on top. The Rainbowimaging M39 adapter has no adjustments for orientation. Also, the photo on the Fotodiox web site for their M39 adapter looks like it doesn't have adjustments either. I read somewhere that M39 adapters are available with adjustments so that the lens can be positioned with the numbering in the correct orientation. Does anyone know of a (reasonable) M39 adapter with adjustments?