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| p.2 #14 · lens repair, modification and disassembly guide thread |
Had no idea there was a dedicated tool for that. I'll keep trying to make something though, the latex glove idea sounds promising. Thank you both
I think can finally add something that might be useful, at F2 and focused at infinity (not the infinity stop), the distance from the end of the black ring around the rear element of a Contax G 45 F2, to the face of the Nex mount (in this case a Metabones adapter), is .389" so then 1.098" to the sensor. An M mount register should be 1.100" so it looks like that black ring on the 45 should end up more or less flush with the face of an M mount at infinity (.001" makes a difference). Then as long as I was measuring things, my Hawks M/Nex adapter is .381" (Shogun is .289ish), the nex mount register is 18mm or .709" for a total of 1.090", explains why I can focus so far beyond infinity with those adapters. Hope this helps and I encourage any corrections to the above.
On the subject of LTM/M adapters, I've received two from Ebay seller "Jinfinance" that are full diameter, spot on thickness, and even have six bit pits machined in. Buy two, spring for EMS shipping and it's still less than one Voigt. and Less than a week to Oregon.
I had worse luck with another seller, the threads were started in the wrong place so the RF cam cutout ends up at the bottom. Won't matter of course for this application and am happy to finally have a use for it.
This is going to be fun
The optical block from the 55/1.7 Rokkor is going to make a fine loupe, just need to make a mount for it.