December 27, 2014 at 9:08AM
Sony A7s - Lens adaptors and Flange Focal Distance Issues?
I'm about to buy the Sony A7s to live alongside my Canon 60D, for video use. I have a bunch of Canon lenses that I'd like to continue to use on the A7s, so I'm looking into the options for that.
But at the same time, I'm considering dipping my toe in the vintage lens world, so, I'm considering doing the following:
- Buying a Holy Mantra ND - Canon EF to NEX: This allows me to use my Canon lenses on the Sony, and sorting the ND issues for SLOG2.
But I wonder, can I buy a bunch of M42 lenses, with Fotodiox lens mounts for Canon, and load it onto the Holy Mantra? Then, I have the option to use the M42 lenses on my Canon as well as the A7s.
BUT this means the following chain!
A7s -->Holy Mantra-->Fotodiox Adapter-->M42 lenses
I've not entirely got my head around FFD (Flange Focal Distance), and whether having both the Holymantra and Fotodiox lens mounts would render the M42 lenses unusable. If anyone has any knowledge in this area, I'd love to hear your thoughts.
I've not ever used M42 lenses before so would be open to hear discussion about whether going for Contax or Nikkor lenses would be wiser in the long term, but I like the idea of being able to experiment with the cheaper M42 lenses, having just spent around £2000 on other gear!