Hellloooooh 58/1.2 !
This lens conversion was a total giant bitch.
I was intending to do a write up on how I did it but I made so many mistakes that it woulda been a "what not to do" guide.
I essentially followed Georg P.'s guide: took off the old manual focus SR mount and mount spacer and subsituted the chipped M42=>α mount adapter, with holes i had to drill myself (mistakes there), and also countersunk holes (more mistakes) along with self created mount spacers (a few trial and errors). The spacers, shown above in blue, are actually 6 plastic disposable plates (bought from local loblaw grocery store for about 10 for $4). They were thin enough to cut in a customized shape (circles with a doughnut hole in the middle), hopefully durable as well. However, since there were so many layers, they didn't necessarily fit perfectly (wrinkles when compressed with the mount screws). Ohwell, it works for now (2 weeks later, no probs)
I think I read that it only takes about 45 minutes to convert. I wasn't racing, but it took me all night to. I misaligned the drill holes, I didn't know what sized drill bit to countersink the screws with and I misaligned the aperature ring link.
Thanks to Arkku, Georg P, and Mr. Hotwire for guidance and Canadian Tire and Home Depot for their precision screw drivers, table top drill presses and generous return policies.
Hellloooooh 58/1.2 !
This lens conversion was a total giant bitch.
I was intending to do a write up on how I did it but I made so many mistakes that it woulda been a "what not to do" guide.
I essentially followed Georg P.'s guide: took off the old manual focus SR mount and mount spacer and subsituted the chipped M42=>α mount adapter, with holes i had to drill myself (mistakes there), and also countersunk holes (more mistakes) along with self created mount spacers (a few trial and errors). The spacers, shown above in blue, are actually 6 plastic disposable plates (bought from local loblaw grocery store for about 10 for $4). They were thin enough to cut in a customized shape (circles with a doughnut hole in the middle), hopefully durable as well. However, since there were so many layers, they didn't necessarily fit perfectly (wrinkles when compressed with the mount screws). Ohwell, it works for now (2 weeks later, no probs)
I think I read that it only takes about 45 minutes to convert. I wasn't racing, but it took me all night to. I misaligned the drill holes, I didn't know what sized drill bit to countersink the screws with and I misaligned the aperature ring link.
Thanks to Arkku, Georg P, and Mr. Hotwire for guidance and Canadian Tire and Home Depot for their precision screw drivers, table top drill presses and generous return policies.